SLES 12 Security Technical Implementation Guide

Description

This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: [email protected]

Details

Version / Release: V2R5

Published: 2021-08-18

Updated At: 2021-11-06 12:50:58

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Drop CKL or SCAP (XCCDF) results here.

    Vuln Rule Version CCI Severity Title Description Status Finding Details Comments
    SV-217101r603262_rule SLES-12-010000 CCI-001230 HIGH The SUSE operating system must be a vendor-supported release. A SUSE operating system release is considered "supported" if the vendor continues to provide security patches for the product. With an unsupported release, it will not be possible to resolve security issues discovered in the system software.
    SV-217102r603262_rule SLES-12-010010 CCI-001227 MEDIUM Vendor-packaged SUSE operating system security patches and updates must be installed and up to date. Timely patching is critical for maintaining the operational availability, confidentiality, and integrity of information technology (IT) systems. However, failure to keep SUSE operating system and application software patched is a common mistake made by IT
    SV-217103r603262_rule SLES-12-010020 CCI-000048 MEDIUM The SUSE operating system must display the Standard Mandatory DoD Notice and Consent Banner until users acknowledge the usage conditions and take explicit actions to log on for further access to the local graphical user interface. Display of a standardized and approved use notification before granting access to the SUSE operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulat
    SV-217104r603262_rule SLES-12-010030 CCI-000048 MEDIUM The SUSE operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting access via local console. Display of a standardized and approved use notification before granting access to the SUSE operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulat
    SV-217105r646678_rule SLES-12-010040 CCI-001384 MEDIUM The SUSE operating system must display a banner before granting local or remote access to the system via a graphical user logon. Display of a standardized and approved use notification before granting access to the SUSE operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulat
    SV-217106r646681_rule SLES-12-010050 CCI-001388 MEDIUM The SUSE operating system must display the approved Standard Mandatory DoD Notice before granting local or remote access to the system via a graphical user logon. Display of a standardized and approved use notification before granting access to the SUSE operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulat
    SV-217107r603262_rule SLES-12-010060 CCI-000056 MEDIUM The SUSE operating system must be able to lock the graphical user interface (GUI). A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented a
    SV-217108r603262_rule SLES-12-010070 CCI-000060 LOW The SUSE operating system must utilize vlock to allow for session locking. A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented a
    SV-217109r646684_rule SLES-12-010080 CCI-000057 MEDIUM The SUSE operating system must initiate a session lock after a 15-minute period of inactivity for the graphical user interface. A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user
    SV-217110r603262_rule SLES-12-010090 CCI-000057 MEDIUM The SUSE operating system must initiate a session lock after a 15-minute period of inactivity. A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user
    SV-217111r603262_rule SLES-12-010100 CCI-000060 LOW The SUSE operating system must conceal, via the session lock, information previously visible on the display with a publicly viewable image in the graphical user interface. A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. The session lock is implemented at the po
    SV-217112r646686_rule SLES-12-010110 CCI-002038 HIGH The SUSE operating system must reauthenticate users when changing authenticators, roles, or escalating privileges. Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When SUSE operating system provide the capability to change user authenticators, change security roles, or escalate a functional capability,
    SV-217113r603262_rule SLES-12-010120 CCI-000054 LOW The SUSE operating system must limit the number of concurrent sessions to 10 for all accounts and/or account types. SUSE operating system management includes the ability to control the number of users and user sessions that utilize a SUSE operating system. Limiting the number of allowed users and sessions per user is helpful in reducing the risks related to Denial-of-S
    SV-217114r603262_rule SLES-12-010130 CCI-000044 MEDIUM The SUSE operating system must lock an account after three consecutive invalid access attempts. By limiting the number of failed access attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. The pam_tally2.so module maintains a count
    SV-217116r603262_rule SLES-12-010140 CCI-000366 MEDIUM The SUSE operating system must enforce a delay of at least four (4) seconds between logon prompts following a failed logon attempt. Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain access to an account.
    SV-217117r603262_rule SLES-12-010150 CCI-000192 MEDIUM The SUSE operating system must enforce passwords that contain at least one upper-case character. Use of a complex password helps increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password com
    SV-217118r603262_rule SLES-12-010160 CCI-000193 MEDIUM The SUSE operating system must enforce passwords that contain at least one lower-case character. Use of a complex password helps increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password com
    SV-217119r603262_rule SLES-12-010170 CCI-000194 MEDIUM The SUSE operating system must enforce passwords that contain at least one numeric character. Use of a complex password helps increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password com
    SV-217120r603262_rule SLES-12-010180 CCI-001619 MEDIUM The SUSE operating system must enforce passwords that contain at least one special character. Use of a complex password helps increase the time and resources required to compromise the password. Password complexity or strength is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password compl
    SV-217121r603262_rule SLES-12-010190 CCI-000195 MEDIUM The SUSE operating system must require the change of at least eight (8) of the total number of characters when passwords are changed. If the SUSE operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password compromise by increasing the window of opportunity for attempts at guessing and brute-force attacks. The number of
    SV-217122r646689_rule SLES-12-010210 CCI-000803 MEDIUM The SUSE operating system must employ FIPS 140-2 approved cryptographic hashing algorithm for system authentication (login.defs). Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied on to provide confidentiality or integrity, and DoD data may be compromised. SUSE operating systems using encryption are re
    SV-217123r646692_rule SLES-12-010220 CCI-000803 MEDIUM The SUSE operating system must employ FIPS 140-2-approved cryptographic hashing algorithms for all stored passwords. The system must use a strong hashing algorithm to store the password. The system must use a sufficient number of hashing rounds to ensure the required level of entropy. Passwords need to be protected at all times, and encryption is the standard method fo
    SV-217124r603262_rule SLES-12-010230 CCI-000196 MEDIUM The SUSE operating system must configure the Linux Pluggable Authentication Modules (PAM) to only store encrypted representations of passwords. Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. Satisfies: SRG-OS-000120-GPOS-00061
    SV-217125r603262_rule SLES-12-010231 CCI-000366 MEDIUM The SUSE operating system must not be configured to allow blank or null passwords. Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised.
    SV-217126r603262_rule SLES-12-010240 CCI-000196 MEDIUM The SUSE operating system must employ FIPS 140-2-approved cryptographic hashing algorithms for all stored passwords. The system must use a strong hashing algorithm to store the password. The system must use a sufficient number of hashing rounds to ensure the required level of entropy. Passwords need to be protected at all times, and encryption is the standard method fo
    SV-217127r603262_rule SLES-12-010250 CCI-000205 MEDIUM The SUSE operating system must employ passwords with a minimum of 15 characters. The shorter the password, the lower the number of possible combinations that need to be tested before the password is compromised. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and bru
    SV-217128r646695_rule SLES-12-010260 CCI-000198 MEDIUM The SUSE operating system must be configured to create or update passwords with a minimum lifetime of 24 hours (one day). Enforcing a minimum password lifetime helps prevent repeated password changes to defeat the password reuse or history enforcement requirement. If users are allowed to immediately and continually change their password, the password could be repeatedly chan
    SV-217129r646698_rule SLES-12-010270 CCI-000198 MEDIUM The SUSE operating system must employ user passwords with a minimum lifetime of 24 hours (one day). Enforcing a minimum password lifetime helps prevent repeated password changes to defeat the password reuse or history enforcement requirement. If users are allowed to immediately and continually change their password, the password could be repeatedly chan
    SV-217130r646701_rule SLES-12-010280 CCI-000199 MEDIUM The SUSE operating system must be configured to create or update passwords with a maximum lifetime of 60 days. Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the SUSE operating system does not limit the lifetime of passwords and force users to change their passwords, there is the risk that t
    SV-217131r646704_rule SLES-12-010290 CCI-000199 MEDIUM The SUSE operating system must employ user passwords with a maximum lifetime of 60 days. Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the SUSE operating system does not limit the lifetime of passwords and force users to change their passwords, there is the risk that t
    SV-217132r603262_rule SLES-12-010300 CCI-000200 MEDIUM The SUSE operating system must employ a password history file. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. If the information system or application allows the user to consecutively reuse their password when that password
    SV-217133r603262_rule SLES-12-010310 CCI-000200 MEDIUM The SUSE operating system must not allow passwords to be reused for a minimum of five (5) generations. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. If the information system or application allows the user to consecutively reuse their password when that password
    SV-217134r603262_rule SLES-12-010320 CCI-000366 MEDIUM The SUSE operating system must prevent the use of dictionary words for passwords. If the SUSE operating system allows the user to select passwords based on dictionary words, this increases the chances of password compromise by increasing the opportunity for successful guesses and brute-force attacks.
    SV-217135r603262_rule SLES-12-010330 CCI-001682 MEDIUM The SUSE operating system must never automatically remove or disable emergency administrator accounts. Emergency accounts are privileged accounts that are established in response to crisis situations where the need for rapid account activation is required. Therefore, emergency account activation may bypass normal account authorization processes. If these a
    SV-217136r603262_rule SLES-12-010340 CCI-000795 MEDIUM The SUSE operating system must disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity after password expiration. Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potentially obtain undetected access to the system. Owners of inactive accounts will not notice if unauthorized access to their user acco
    SV-217137r603262_rule SLES-12-010360 CCI-000016 MEDIUM The SUSE operating system must provision temporary accounts with an expiration date for 72 hours. If temporary user accounts remain active when no longer needed or for an excessive period, these accounts may be used to gain unauthorized access. To mitigate this risk, automated termination of all temporary accounts must be set upon account creation. T
    SV-217138r603262_rule SLES-12-010370 CCI-000366 MEDIUM The SUSE operating system must enforce a delay of at least four seconds between logon prompts following a failed logon attempt. Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain access to an account.
    SV-217139r646707_rule SLES-12-010380 CCI-000366 HIGH The SUSE operating system must not allow unattended or automatic logon via the graphical user interface. Failure to restrict system access to authenticated users negatively impacts SUSE operating system security.
    SV-217140r646709_rule SLES-12-010390 CCI-000366 LOW The SUSE operating system must display the date and time of the last successful account logon upon logon. Providing users with feedback on when account accesses last occurred facilitates user recognition and reporting of unauthorized account use.
    SV-217141r603262_rule SLES-12-010400 CCI-000366 HIGH There must be no .shosts files on the SUSE operating system. The .shosts files are used to configure host-based authentication for individual users or the system via SSH. Host-based authentication is not sufficient for preventing unauthorized access to the system, as it does not require interactive identification a
    SV-217142r603262_rule SLES-12-010410 CCI-000366 HIGH There must be no shosts.equiv files on the SUSE operating system. The shosts.equiv files are used to configure host-based authentication for the system via SSH. Host-based authentication is not sufficient for preventing unauthorized access to the system, as it does not require interactive identification and authenticati
    SV-217143r603262_rule SLES-12-010420 CCI-002450 MEDIUM FIPS 140-2 mode must be enabled on the SUSE operating system. Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. The SUSE operating system must implement cryptographic modules adhering to the higher standards approved by the federal government since this provid
    SV-217144r603262_rule SLES-12-010430 CCI-000213 MEDIUM SUSE operating systems with a basic input/output system (BIOS) must require authentication upon booting into single-user and maintenance modes. To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be properly configured to incorporate access control methods
    SV-217145r603262_rule SLES-12-010440 CCI-000213 MEDIUM SUSE operating systems with Unified Extensible Firmware Interface (UEFI) implemented must require authentication upon booting into single-user mode and maintenance. If the system allows a user to boot into single-user or maintenance mode without authentication, any user that invokes single-user or maintenance mode is granted privileged access to all system information. If the system is running in EFI mode, SLES 12 b
    SV-217146r603262_rule SLES-12-010450 CCI-001199 MEDIUM All SUSE operating system persistent disk partitions must implement cryptographic mechanisms to prevent unauthorized disclosure or modification of all information that requires at rest protection. SUSE operating systems handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. Selection of a cryptographic mechanism is based on the need to
    SV-217147r603262_rule SLES-12-010460 CCI-001090 MEDIUM The sticky bit must be set on all SUSE operating system world-writable directories. Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of information, produced by the actions of prior users/roles (or the actions of processes acting on behalf of prior users/roles) from bein
    SV-217148r603262_rule SLES-12-010500 CCI-002696 MEDIUM Advanced Intrusion Detection Environment (AIDE) must verify the baseline SUSE operating system configuration at least weekly. Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized access to the SUSE operating system. Changes to SUSE operating system configurations can have unintended side effects, some of whi
    SV-217149r603262_rule SLES-12-010510 CCI-002702 MEDIUM The SUSE operating system must notify the System Administrator (SA) when AIDE discovers anomalies in the operation of any security functions. If anomalies are not acted on, security functions may fail to secure the system. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the is
    SV-217150r646711_rule SLES-12-010520 CCI-000366 LOW The SUSE operating system file integrity tool must be configured to verify Access Control Lists (ACLs). ACLs can provide permissions beyond those permitted through the file mode and must be verified by file integrity tools.
    SV-217151r646713_rule SLES-12-010530 CCI-000366 LOW The SUSE operating system file integrity tool must be configured to verify extended attributes. Extended attributes in file systems are used to contain arbitrary data and file metadata with security implications.
    SV-217152r603262_rule SLES-12-010540 CCI-001496 MEDIUM The SUSE operating system file integrity tool must be configured to protect the integrity of the audit tools. Protecting the integrity of the tools used for auditing purposes is a critical step toward ensuring the integrity of audit information. Audit information includes all information (e.g., audit records, audit settings, and audit reports) needed to successfu
    SV-217153r646716_rule SLES-12-010550 CCI-001749 MEDIUM The SUSE operating system tool zypper must have gpgcheck enabled. Changes to any software components can have significant effects on the overall security of the SUSE operating system. This requirement ensures the software has not been tampered with and has been provided by a trusted vendor. Accordingly, patches, servic
    SV-217154r603262_rule SLES-12-010570 CCI-002617 MEDIUM The SUSE operating system must remove all outdated software components after updated versions have been installed. Previous versions of software components that are not removed from the information system after updates have been installed may be exploited by adversaries. Some information technology products may remove older versions of software automatically from the
    SV-217155r603262_rule SLES-12-010580 CCI-001958 MEDIUM The SUSE operating system must disable the USB mass storage kernel module. Without identifying devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include but are not limited to such devices as flash drives, external storage, and printers.
    SV-217156r603262_rule SLES-12-010590 CCI-000366 MEDIUM The SUSE operating system must disable the file system automounter unless required. Automatically mounting file systems permits easy introduction of unknown devices, thereby facilitating malicious activity. Satisfies: SRG-OS-000114-GPOS-00059, SRG-OS-000378-GPOS-00163, SRG-OS-000480-GPOS-00227
    SV-217158r646719_rule SLES-12-010600 CCI-002165 MEDIUM The SUSE operating system Apparmor tool must be configured to control whitelisted applications and user home directory access control. Using a whitelist provides a configuration management method for allowing the execution of only authorized software. Using only authorized software decreases risk by limiting the number of potential vulnerabilities. The organization must identify authori
    SV-217159r646722_rule SLES-12-010610 CCI-000366 HIGH The SUSE operating system must disable the x86 Ctrl-Alt-Delete key sequence. A locally logged-on user who presses Ctrl-Alt-Delete, when at the console, can reboot the system. If accidentally pressed, as could happen in the case of a mixed OS environment, this can create the risk of short-term loss of availability of systems due to
    SV-217160r646725_rule SLES-12-010611 CCI-000366 HIGH The SUSE operating system must disable the x86 Ctrl-Alt-Delete key sequence for Graphical User Interfaces. A locally logged-on user who presses Ctrl-Alt-Delete, when at the console, can reboot the system. If accidentally pressed, as could happen in the case of a mixed OS environment, this can create the risk of short-term loss of availability of systems due to
    SV-217161r603262_rule SLES-12-010620 CCI-000366 MEDIUM The SUSE operating system default permissions must be defined in such a way that all authenticated users can only read and modify their own files. Setting the most restrictive default permissions ensures that when new accounts are created, they do not have unnecessary access.
    SV-217162r603262_rule SLES-12-010630 CCI-000366 MEDIUM The SUSE operating system must not have unnecessary accounts. Accounts providing no operational purpose provide additional opportunities for system compromise. Unnecessary accounts include user accounts for individuals not requiring access to the system and application accounts for applications not installed on the
    SV-217163r603262_rule SLES-12-010640 CCI-000804 MEDIUM The SUSE operating system must not have duplicate User IDs (UIDs) for interactive users. To assure accountability and prevent unauthenticated access, interactive users must be identified and authenticated to prevent potential misuse and compromise of the system. Interactive users include organizational employees or individuals the organizati
    SV-217164r603262_rule SLES-12-010650 CCI-000366 HIGH The SUSE operating system root account must be the only account having unrestricted access to the system. If an account other than root also has a User Identifier (UID) of "0", it has root authority, giving that account unrestricted access to the entire SUSE operating system. Multiple accounts with a UID of "0" afford an opportunity for potential intruders to
    SV-217166r603262_rule SLES-12-010670 CCI-002007 MEDIUM If Network Security Services (NSS) is being used by the SUSE operating system it must prohibit the use of cached authentications after one day. If cached authentication information is out of date, the validity of the authentication information may be questionable.
    SV-217167r603262_rule SLES-12-010680 CCI-002007 MEDIUM The SUSE operating system must configure the Linux Pluggable Authentication Modules (PAM) to prohibit the use of cached offline authentications after one day. If cached authentication information is out of date, the validity of the authentication information may be questionable.
    SV-217168r603262_rule SLES-12-010690 CCI-002165 MEDIUM All SUSE operating system files and directories must have a valid owner. Unowned files and directories may be unintentionally inherited if a user is assigned the same User Identifier (UID) as the UID of the unowned files.
    SV-217169r603262_rule SLES-12-010700 CCI-002165 MEDIUM All SUSE operating system files and directories must have a valid group owner. Files without a valid group owner may be unintentionally inherited if a group is assigned the same Group Identifier (GID) as the GID of the files without a valid group owner.
    SV-217170r646728_rule SLES-12-010710 CCI-000366 MEDIUM All SUSE operating system local interactive users must have a home directory assigned in the /etc/passwd file. If local interactive users are not assigned a valid home directory, there is no place for the storage and control of files they should own.
    SV-217171r603262_rule SLES-12-010720 CCI-000366 MEDIUM All SUSE operating system local interactive user accounts, upon creation, must be assigned a home directory. If local interactive users are not assigned a valid home directory, there is no place for the storage and control of files they should own.
    SV-217172r603885_rule SLES-12-010730 CCI-000366 MEDIUM All SUSE operating system local interactive user home directories defined in the /etc/passwd file must exist. If a local interactive user has a home directory defined that does not exist, the user may be given access to the / directory as the current working directory upon logon. This could create a Denial of Service because the user would not be able to access t
    SV-217173r603887_rule SLES-12-010740 CCI-000366 MEDIUM All SUSE operating system local interactive user home directories must have mode 0750 or less permissive. Excessive permissions on local interactive user home directories may allow unauthorized access to user files by other users.
    SV-217174r603889_rule SLES-12-010750 CCI-000366 MEDIUM All SUSE operating system local interactive user home directories must be group-owned by the home directory owners primary group. If the Group Identifier (GID) of a local interactive user’s home directory is not the same as the primary GID of the user, this would allow unauthorized access to the user’s files, and users that share the same group may not be able to access files th
    SV-217175r603262_rule SLES-12-010760 CCI-000366 MEDIUM All SUSE operating system local initialization files must have mode 0740 or less permissive. Local initialization files are used to configure the user's shell environment upon logon. Malicious modification of these files could compromise accounts upon logon.
    SV-217176r793056_rule SLES-12-010770 CCI-000366 MEDIUM All SUSE operating system local interactive user initialization files executable search paths must contain only paths that resolve to the users home directory. The executable search path (typically the PATH environment variable) contains a list of directories for the shell to search to find executables. If this path includes the current working directory (other than the user's home directory), executables in the
    SV-217177r646731_rule SLES-12-010780 CCI-000366 MEDIUM All SUSE operating system local initialization files must not execute world-writable programs. If user start-up files execute world-writable programs, especially in unprotected directories, they could be maliciously modified to destroy user files or otherwise compromise the system at the user level. If the system is compromised at the user level, i
    SV-217178r603891_rule SLES-12-010790 CCI-000366 MEDIUM SUSE operating system file systems that contain user home directories must be mounted to prevent files with the setuid and setgid bit set from being executed. The "nosuid" mount option causes the system to not execute setuid and setgid files with owner privileges. This option must be used for mounting any file system not containing approved setuid and setguid files. Executing files from untrusted file systems i
    SV-217179r603262_rule SLES-12-010800 CCI-000366 MEDIUM SUSE operating system file systems that are used with removable media must be mounted to prevent files with the setuid and setgid bit set from being executed. The "nosuid" mount option causes the system to not execute "setuid" and "setgid" files with owner privileges. This option must be used for mounting any file system not containing approved "setuid" and "setguid" files. Executing files from untrusted file s
    SV-217180r603262_rule SLES-12-010810 CCI-000366 MEDIUM SUSE operating system file systems that are being imported via Network File System (NFS) must be mounted to prevent files with the setuid and setgid bit set from being executed. The "nosuid" mount option causes the system to not execute "setuid" and "setgid" files with owner privileges. This option must be used for mounting any file system not containing approved "setuid" and "setguid" files. Executing files from untrusted file s
    SV-217181r603262_rule SLES-12-010820 CCI-000366 MEDIUM SUSE operating system file systems that are being imported via Network File System (NFS) must be mounted to prevent binary files from being executed. The "noexec" mount option causes the system to not execute binary files. This option must be used for mounting any file system not containing approved binary files as they may be incompatible. Executing files from untrusted file systems increases the oppo
    SV-217182r603262_rule SLES-12-010830 CCI-000366 MEDIUM All SUSE operating system world-writable directories must be group-owned by root, sys, bin, or an application group. If a world-writable directory has the sticky bit set and is not group-owned by a privileged Group Identifier (GID), unauthorized users may be able to modify files created by others. The only authorized public directories are those temporary directories s
    SV-217183r603262_rule SLES-12-010840 CCI-000366 MEDIUM SUSE operating system kernel core dumps must be disabled unless needed. Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a considerable amount of disk space and may result in denial of service by exhausting the available space on the target file system pa
    SV-217184r603893_rule SLES-12-010850 CCI-000366 LOW A separate file system must be used for SUSE operating system user home directories (such as /home or an equivalent). The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing.
    SV-217185r603262_rule SLES-12-010860 CCI-000366 LOW The SUSE operating system must use a separate file system for /var. The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing.
    SV-217186r603262_rule SLES-12-010870 CCI-000366 LOW The SUSE operating system must use a separate file system for the system audit data path. The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing.
    SV-217188r646734_rule SLES-12-010890 CCI-001314 MEDIUM The SUSE operating system must prevent unauthorized users from accessing system error messages. Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the SUSE operating system or platform. Additionally, Personally Identifiable Informat
    SV-217189r646737_rule SLES-12-010910 CCI-000366 MEDIUM The SUSE operating system must be configured to not overwrite Pluggable Authentication Modules (PAM) configuration on package changes. "pam-config" is a command line utility that automatically generates a system PAM configuration as packages are installed, updated or removed from the system. "pam-config" removes configurations for PAM modules and parameters that it does not know about. I
    SV-217190r603262_rule SLES-12-020000 CCI-000172 MEDIUM The SUSE operating system must have the auditing package installed. Without establishing what type of events occurred, the source of events, where events occurred, and the outcome of events, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content t
    SV-217191r603262_rule SLES-12-020010 CCI-000366 MEDIUM SUSE operating system audit records must contain information to establish what type of events occurred, the source of events, where events occurred, and the outcome of events. Without establishing what type of events occurred, the source of events, where events occurred, and the outcome of events, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content t
    SV-217192r603262_rule SLES-12-020020 CCI-001849 MEDIUM The SUSE operating system must allocate audit record storage capacity to store at least one weeks worth of audit records when audit records are not immediately sent to a central audit record storage facility. To ensure SUSE operating systems have a sufficient storage capacity in which to write the audit logs, SUSE operating systems need to be able to allocate audit record storage capacity. The task of allocating audit record storage capacity is usually perfor
    SV-217193r603262_rule SLES-12-020030 CCI-001855 MEDIUM The SUSE operating system auditd service must notify the System Administrator (SA) and Information System Security Officer (ISSO) immediately when audit storage capacity is 75 percent full. If security personnel are not notified immediately when storage volume reaches 75 percent utilization, they are unable to plan for audit record storage capacity expansion.
    SV-217194r603262_rule SLES-12-020040 CCI-000139 MEDIUM The Information System Security Officer (ISSO) and System Administrator (SA), at a minimum, must be alerted of a SUSE operating system audit processing failure event. It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an impending failure of the audit capability, and system oper
    SV-217195r646740_rule SLES-12-020050 CCI-000139 MEDIUM The Information System Security Officer (ISSO) and System Administrator (SA), at a minimum, must have mail aliases to be notified of a SUSE operating system audit processing failure. It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an impending failure of the audit capability, and system oper
    SV-217196r603262_rule SLES-12-020060 CCI-000140 MEDIUM The SUSE operating system audit system must take appropriate action when the audit storage volume is full. It is critical that when the SUSE operating system is at risk of failing to process audit logs as required, it takes action to mitigate the failure. Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, an
    SV-217197r603262_rule SLES-12-020070 CCI-001851 MEDIUM The audit-audispd-plugins must be installed on the SUSE operating system. Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity.
    SV-217198r603262_rule SLES-12-020080 CCI-001851 LOW The SUSE operating system audit event multiplexor must be configured to use Kerberos. Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Allowing devices and users to connect to or from the system without first authenticating them allows untrusted access and can lead to a compromise or att
    SV-217199r603262_rule SLES-12-020090 CCI-001851 LOW Audispd must off-load audit records onto a different system or media from the SUSE operating system being audited. Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity.
    SV-217200r603262_rule SLES-12-020100 CCI-001851 MEDIUM The audit system must take appropriate action when the network cannot be used to off-load audit records. Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity.
    SV-217201r603262_rule SLES-12-020110 CCI-001851 MEDIUM Audispd must take appropriate action when the SUSE operating system audit storage is full. Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity.
    SV-217202r603262_rule SLES-12-020120 CCI-000162 MEDIUM The SUSE operating system must protect audit rules from unauthorized modification. Without the capability to restrict which roles and individuals can select which events are audited, unauthorized personnel may be able to prevent the auditing of critical events. Misconfigured audits may degrade the system's performance by overwhelming th
    SV-217203r646743_rule SLES-12-020130 CCI-001494 MEDIUM The SUSE operating system audit tools must have the proper permissions configured to protect against unauthorized access. Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. SUSE operating systems providing
    SV-217204r646746_rule SLES-12-020199 CCI-000366 MEDIUM The SUSE operating system must not disable syscall auditing. By default, the SUSE operating system includes the "-a task,never" audit rule as a default. This rule suppresses syscall auditing for all tasks started with this rule in effect. Because the audit daemon processes the "audit.rules" file from the top down,
    SV-217205r603262_rule SLES-12-020200 CCI-001403 MEDIUM The SUSE operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/passwd. Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to simply create a new account. Auditing of account creation mitiga
    SV-217206r603262_rule SLES-12-020210 CCI-000018 MEDIUM The SUSE operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/group. Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to simply create a new account. Auditing of account creation mitiga
    SV-217207r603262_rule SLES-12-020220 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/shadow. Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to simply create a new account. Auditing of account creation mitiga
    SV-217208r603262_rule SLES-12-020230 CCI-000018 MEDIUM The SUSE operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/opasswd. Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to simply create a new account. Auditing of account creation mitiga
    SV-217209r603262_rule SLES-12-020240 CCI-002234 LOW The SUSE operating system must generate audit records for all uses of the privileged functions. Misuse of privileged functions, either intentionally or unintentionally by authorized users, or by unauthorized external entities that have compromised information system accounts, is a serious and ongoing concern and can have significant adverse impacts
    SV-217210r603896_rule SLES-12-020250 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the su command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217211r603899_rule SLES-12-020260 CCI-000169 LOW The SUSE operating system must generate audit records for all uses of the sudo command. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trail
    SV-217212r603902_rule SLES-12-020280 CCI-000130 LOW The SUSE operating system must generate audit records for all uses of the chfn command. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trail
    SV-217213r603262_rule SLES-12-020290 CCI-000172 LOW The SUSE operating system must generate audit records for all uses of the mount command. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trail
    SV-217214r603262_rule SLES-12-020300 CCI-000130 LOW The SUSE operating system must generate audit records for all uses of the umount command. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trail
    SV-217215r603905_rule SLES-12-020310 CCI-000172 LOW The SUSE operating system must generate audit records for all uses of the ssh-agent command. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trail
    SV-217216r603908_rule SLES-12-020320 CCI-000130 LOW The SUSE operating system must generate audit records for all uses of the ssh-keysign command. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trail
    SV-217217r603262_rule SLES-12-020360 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the kmod command. Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the i
    SV-217218r603262_rule SLES-12-020370 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the setxattr command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217219r603262_rule SLES-12-020380 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the fsetxattr command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217220r603262_rule SLES-12-020390 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the removexattr command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217221r603262_rule SLES-12-020400 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the lremovexattr command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217222r603262_rule SLES-12-020410 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the fremovexattr command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217223r603262_rule SLES-12-020420 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the chown command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217224r603262_rule SLES-12-020430 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the fchown command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217225r603262_rule SLES-12-020440 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the lchown command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217226r603262_rule SLES-12-020450 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the fchownat command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217227r603262_rule SLES-12-020460 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the chmod command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217228r603262_rule SLES-12-020470 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the fchmod command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217229r603262_rule SLES-12-020480 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the fchmodat command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217230r603262_rule SLES-12-020490 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the open command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217231r603262_rule SLES-12-020500 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the truncate command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217232r603262_rule SLES-12-020510 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the ftruncate command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217233r603262_rule SLES-12-020520 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the creat command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217234r603262_rule SLES-12-020530 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the openat command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217235r603262_rule SLES-12-020540 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the open_by_handle_at command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217236r603911_rule SLES-12-020550 CCI-000172 LOW The SUSE operating system must generate audit records for all uses of the passwd command. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trail
    SV-217237r603914_rule SLES-12-020560 CCI-000130 LOW The SUSE operating system must generate audit records for all uses of the gpasswd command. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trail
    SV-217238r603917_rule SLES-12-020570 CCI-000172 LOW The SUSE operating system must generate audit records for all uses of the newgrp command. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trail
    SV-217239r603920_rule SLES-12-020580 CCI-000130 LOW The SUSE operating system must generate audit records for a uses of the chsh command. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trail
    SV-217240r603262_rule SLES-12-020590 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/gshadow. Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to simply create a new account. Auditing of account creation mitiga
    SV-217241r603923_rule SLES-12-020600 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the chmod command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217242r603926_rule SLES-12-020610 CCI-000169 MEDIUM The SUSE operating system must generate audit records for all uses of the setfacl command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217243r603929_rule SLES-12-020620 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the chacl command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217244r603932_rule SLES-12-020630 CCI-000169 MEDIUM Successful/unsuccessful attempts to modify categories of information (e.g., classification levels) must generate audit records. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217245r603935_rule SLES-12-020640 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the rm command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217246r603262_rule SLES-12-020650 CCI-000169 MEDIUM The SUSE operating system must generate audit records for all modifications to the tallylog file must generate an audit record. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217247r603262_rule SLES-12-020660 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all modifications to the lastlog file. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217248r603938_rule SLES-12-020670 CCI-000169 MEDIUM The SUSE operating system must generate audit records for all uses of the passmass command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217249r603941_rule SLES-12-020680 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the unix_chkpwd command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217250r603944_rule SLES-12-020690 CCI-000169 MEDIUM The SUSE operating system must generate audit records for all uses of the chage command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217251r603947_rule SLES-12-020700 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the usermod command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217252r603950_rule SLES-12-020710 CCI-000169 MEDIUM The SUSE operating system must generate audit records for all uses of the crontab command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217253r603953_rule SLES-12-020720 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the pam_timestamp_check command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217254r603262_rule SLES-12-020730 CCI-000172 MEDIUM The SUSE operating system must generate audit records for all uses of the delete_module command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit reco
    SV-217255r603262_rule SLES-12-020740 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all uses of the finit_module command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit reco
    SV-217256r603262_rule SLES-12-020750 CCI-000169 MEDIUM The SUSE operating system must generate audit records for all uses of the init_module command. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit reco
    SV-217257r603262_rule SLES-12-020760 CCI-000130 MEDIUM The SUSE operating system must generate audit records for all modifications to the faillog file. Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit recor
    SV-217258r603262_rule SLES-12-030000 CCI-000197 MEDIUM The SUSE operating system must not have the telnet-server package installed. It is detrimental for SUSE operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase t
    SV-217260r603262_rule SLES-12-030020 CCI-000050 MEDIUM The SUSE operating system file /etc/gdm/banner must contain the Standard Mandatory DoD Notice and Consent banner text. The banner must be acknowledged by the user prior to allowing the user access to the SUSE operating system. This provides assurance that the user has seen the message and accepted the conditions for access. If the consent banner is not acknowledged by the
    SV-217261r603262_rule SLES-12-030030 CCI-000382 MEDIUM The SUSE operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services as defined in the Ports, Protocols, and Services Management (PPSM) Category Assignments List (CAL) and vulnerability assessments. To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/proto
    SV-217262r603262_rule SLES-12-030040 CCI-002385 HIGH SuSEfirewall2 must protect against or limit the effects of Denial-of-Service (DoS) attacks on the SUSE operating system by implementing rate-limiting measures on impacted network interfaces. DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. This requirement addresses the configuration of the SUSE operating sys
    SV-217263r603262_rule SLES-12-030050 CCI-001386 MEDIUM The SUSE operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting access via SSH. Display of a standardized and approved use notification before granting access to the SUSE operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulat
    SV-217264r603262_rule SLES-12-030100 CCI-002418 HIGH All networked SUSE operating systems must have and implement SSH to protect the confidentiality and integrity of transmitted and received information, as well as information during preparation for transmission. Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered. This requirement applies to both internal and external networks and all
    SV-217265r603262_rule SLES-12-030110 CCI-000067 MEDIUM The SUSE operating system must log SSH connection attempts and failures to the server. Remote access services, such as those providing remote access to network devices and information systems, which lack automated monitoring capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD
    SV-217266r603262_rule SLES-12-030130 CCI-000366 MEDIUM The SUSE operating system must display the date and time of the last successful account logon upon an SSH logon. Providing users with feedback on when account accesses via SSH last occurred facilitates user recognition and reporting of unauthorized account use.
    SV-217267r603262_rule SLES-12-030140 CCI-000770 MEDIUM The SUSE operating system must deny direct logons to the root account using remote access via SSH. To assure individual accountability and prevent unauthorized access, organizational users must be individually identified and authenticated. A group authenticator is a generic account used by multiple individuals. Use of a group authenticator alone does
    SV-217268r603262_rule SLES-12-030150 CCI-000366 HIGH The SUSE operating system must not allow automatic logon via SSH. Failure to restrict system access via SSH to authenticated users negatively impacts SUSE operating system security.
    SV-217269r646747_rule SLES-12-030151 CCI-000366 MEDIUM The SUSE operating system must not allow users to override SSH environment variables. SSH environment options potentially allow users to bypass access restriction in some configurations.
    SV-217270r744120_rule SLES-12-030170 CCI-000068 MEDIUM The SUSE operating system must implement DoD-approved encryption to protect the confidentiality of SSH remote connections. Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) co
    SV-217271r744121_rule SLES-12-030180 CCI-000877 MEDIUM The SUSE operating system SSH daemon must be configured to only use Message Authentication Codes (MACs) employing FIPS 140-2 approved cryptographic hash algorithms. Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating throu
    SV-217272r603262_rule SLES-12-030190 CCI-000879 MEDIUM The SUSE operating system SSH daemon must be configured with a timeout interval. Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminat
    SV-217273r603961_rule SLES-12-030191 CCI-001133 MEDIUM The SUSE operating system for all network connections associated with SSH traffic must immediately terminate at the end of the session or after 10 minutes of inactivity. Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of network connections that are associated with communications sessions (i.e., network disconnect). A logical session (for local, net
    SV-217274r603262_rule SLES-12-030200 CCI-000366 MEDIUM The SUSE operating system SSH daemon must be configured to not allow authentication using known hosts authentication. Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, even in the event of misconfiguration elsewhere.
    SV-217275r646750_rule SLES-12-030210 CCI-000366 MEDIUM The SUSE operating system SSH daemon public host key files must have mode 0644 or less permissive. If a public host key file is modified by an unauthorized user, the SSH service may be compromised.
    SV-217276r646753_rule SLES-12-030220 CCI-000366 MEDIUM The SUSE operating system SSH daemon private host key files must have mode 0600 or less permissive. If an unauthorized user obtains the private SSH host key file, the host could be impersonated.
    SV-217277r603262_rule SLES-12-030230 CCI-000366 MEDIUM The SUSE operating system SSH daemon must perform strict mode checking of home directory configuration files. If other users have access to modify user-specific SSH configuration files, they may be able to log on to the system as another user.
    SV-217278r603262_rule SLES-12-030240 CCI-000366 MEDIUM The SUSE operating system SSH daemon must use privilege separation. SSH daemon privilege separation causes the SSH process to drop root privileges when not needed, which would decrease the impact of software vulnerabilities in the unprivileged section.
    SV-217279r744124_rule SLES-12-030250 CCI-000366 MEDIUM The SUSE operating system SSH daemon must not allow compression or must only allow compression after successful authentication. If compression is allowed in an SSH connection prior to authentication, vulnerabilities in the compression software could result in compromise of the system from an unauthenticated connection, potentially with root privileges.
    SV-217280r603964_rule SLES-12-030260 CCI-000366 MEDIUM The SUSE operating system SSH daemon must disable forwarded remote X connections for interactive users, unless to fulfill documented and validated mission requirements. The security risk of using X11 forwarding is that the client's X11 display server may be exposed to attack when the SSH client requests forwarding. A system administrator may have a stance in which they want to protect clients that may expose themselves t
    SV-217281r646755_rule SLES-12-030300 CCI-002046 MEDIUM The SUSE operating system clock must, for networked systems, be synchronized to an authoritative DoD time source at least every 24 hours. Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. S
    SV-217282r646758_rule SLES-12-030310 CCI-001890 LOW The SUSE operating system must be configured to use Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT). If time stamps are not consistently applied and there is no common time reference, it is difficult to perform forensic analysis. Time stamps generated by the SUSE operating system include date and time. Time is commonly expressed in UTC, a modern continu
    SV-217283r646761_rule SLES-12-030320 CCI-002824 MEDIUM The SUSE operating system must implement kptr-restrict to prevent the leaking of internal kernel addresses. Some adversaries launch attacks with the intent of executing code in nonexecutable regions of memory or in memory locations that are prohibited. Security safeguards employed to protect memory include, for example, data execution prevention and address spa
    SV-217284r646764_rule SLES-12-030330 CCI-002824 MEDIUM Address space layout randomization (ASLR) must be implemented by the SUSE operating system to protect memory from unauthorized code execution. Some adversaries launch attacks with the intent of executing code in nonexecutable regions of memory or in memory locations that are prohibited. Security safeguards employed to protect memory include, for example, data execution prevention and address spa
    SV-217285r603262_rule SLES-12-030340 CCI-001851 MEDIUM The SUSE operating system must off-load rsyslog messages for networked systems in real time and off-load standalone systems at least weekly. Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity.
    SV-217286r603262_rule SLES-12-030350 CCI-001095 MEDIUM The SUSE operating system must be configured to use TCP syncookies. Denial of Service (DoS) is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. Managing excess capacity ensures that sufficient
    SV-217287r603262_rule SLES-12-030360 CCI-000366 MEDIUM The SUSE operating system must not forward Internet Protocol version 4 (IPv4) source-routed packets. Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the forwarding of
    SV-217288r603262_rule SLES-12-030361 CCI-000366 MEDIUM The SUSE operating system must not forward Internet Protocol version 6 (IPv6) source-routed packets. Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the forwarding of
    SV-217289r603262_rule SLES-12-030370 CCI-000366 MEDIUM The SUSE operating system must not forward Internet Protocol version 4 (IPv4) source-routed packets by default. Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the forwarding of
    SV-217290r603262_rule SLES-12-030380 CCI-000366 MEDIUM The SUSE operating system must not respond to Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) echoes sent to a broadcast address. Responding to broadcast (ICMP) echoes facilitates network mapping and provides a vector for amplification attacks.
    SV-217291r603262_rule SLES-12-030390 CCI-000366 MEDIUM The SUSE operating system must prevent Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirect messages from being accepted. ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host's route table and are unauthenticated. An illicit ICMP redirect message could result in a man-in-the-mi
    SV-217292r603262_rule SLES-12-030400 CCI-000366 MEDIUM The SUSE operating system must not allow interfaces to accept Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirect messages by default. ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host's route table and are unauthenticated. An illicit ICMP redirect message could result in a man-in-the-mi
    SV-217293r603262_rule SLES-12-030401 CCI-000366 MEDIUM The SUSE operating system must not allow interfaces to accept Internet Protocol version 6 (IPv6) Internet Control Message Protocol (ICMP) redirect messages by default. ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host's route table and are unauthenticated. An illicit ICMP redirect message could result in a man-in-the-mi
    SV-217294r603262_rule SLES-12-030410 CCI-000366 MEDIUM The SUSE operating system must not allow interfaces to send Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirect messages by default. ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system's route table, possibly revealing portions of the network topology.
    SV-217295r603262_rule SLES-12-030420 CCI-000366 MEDIUM The SUSE operating system must not send Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirects. ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system's route table, possibly revealing portions of the network topology.
    SV-217296r646767_rule SLES-12-030430 CCI-000366 MEDIUM The SUSE operating system must not be performing Internet Protocol version 4 (IPv4) packet forwarding unless the system is a router. Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this software is used when not required, system network information may be unnecessarily transmitted across the network.
    SV-217297r603262_rule SLES-12-030440 CCI-000366 MEDIUM The SUSE operating system must not have network interfaces in promiscuous mode unless approved and documented. Network interfaces in promiscuous mode allow for the capture of all network traffic visible to the system. If unauthorized individuals can access these applications, it may allow then to collect information such as logon IDs, passwords, and key exchanges
    SV-217298r603262_rule SLES-12-030450 CCI-001443 MEDIUM The SUSE operating system wireless network adapters must be disabled unless approved and documented. Without protection of communications with wireless peripherals, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read, altered, or used to compromise the SUSE operating system. This require
    SV-217299r603262_rule SLES-12-030500 CCI-001948 MEDIUM The SUSE operating system must have the packages required for multifactor authentication to be installed. Using an authentication device, such as a CAC or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device. Multifactor
    SV-217300r603262_rule SLES-12-030510 CCI-001954 MEDIUM The SUSE operating system must implement certificate status checking for multifactor authentication. Using an authentication device, such as a Common Access Card (CAC) or token separate from the information system, ensures credentials stored on the authentication device will not be affected if the information system is compromised. Multifactor solutions
    SV-217301r603262_rule SLES-12-030520 CCI-000765 MEDIUM The SUSE operating system must implement multifactor authentication for access to privileged accounts via pluggable authentication modules (PAM). Using an authentication device, such as a CAC or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device. Multifactor
    SV-217302r646769_rule SLES-12-030530 CCI-000185 MEDIUM The SUSE operating system, for PKI-based authentication, must validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor. Without path validation, an informed trust decision by the relying party cannot be made when presented with any certificate not already explicitly trusted. A trust anchor is an authoritative entity represented via a public key and associated data. It is
    SV-222385r754754_rule SLES-12-010599 CCI-001233 MEDIUM The SUSE operating system must implement the Endpoint Security for Linux Threat Prevention tool. Adding endpoint security tools can provide the capability to automatically take actions in response to malicious behavior, which can provide additional agility in reacting to network threats. These tools also often include a reporting capability to provid
    SV-222386r603262_rule SLES-12-030611 CCI-001668 HIGH The SUSE operating system must use a virus scan program. Virus scanning software can be used to protect a system from penetration from computer viruses and to limit their spread through intermediate systems. The virus scanning software should be configured to perform scans dynamically on accessed files. If th
    SV-233308r603331_rule SLES-12-030261 CCI-000366 MEDIUM The SUSE operating system SSH daemon must prevent remote hosts from connecting to the proxy display. When X11 forwarding is enabled, there may be additional exposure to the server and client displays if the sshd proxy display is configured to listen on the wildcard address. By default, sshd binds the forwarding server to the loopback address and sets the
    SV-237603r646772_rule SLES-12-010111 CCI-000366 MEDIUM The SUSE operating system must restrict privilege elevation to authorized personnel. The sudo command allows a user to execute programs with elevated (administrator) privileges. It prompts the user for their password and confirms your request to execute a command by checking a file, called sudoers. If the "sudoers" file is not configured
    SV-237604r646775_rule SLES-12-010112 CCI-002227 MEDIUM The SUSE operating system must use the invoking user's password for privilege escalation when using "sudo". The sudoers security policy requires that users authenticate themselves before they can use sudo. When sudoers requires authentication, it validates the invoking user's credentials. If the rootpw, targetpw, or runaspw flags are defined and not disabled, b
    SV-237605r793058_rule SLES-12-010113 CCI-002038 MEDIUM The SUSE operating system must require re-authentication when using the "sudo" command. Without re-authentication, users may access resources or perform tasks for which they do not have authorization. When operating systems provide the capability to escalate a functional capability, it is critical the organization requires the user to re-a
    SV-237606r646781_rule SLES-12-010631 CCI-000366 MEDIUM The SUSE operating system must not have unnecessary account capabilities. Accounts providing no operational purpose provide additional opportunities for system compromise. Therefore all necessary non-interactive accounts should not have an interactive shell assigned to them.
    SV-237607r646784_rule SLES-12-010871 CCI-001499 MEDIUM The SUSE operating system library files must have mode 0755 or less permissive. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237608r646787_rule SLES-12-010872 CCI-001499 MEDIUM The SUSE operating system library directories must have mode 0755 or less permissive. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237609r646790_rule SLES-12-010873 CCI-001499 MEDIUM The SUSE operating system library files must be owned by root. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237610r646793_rule SLES-12-010874 CCI-001499 MEDIUM The SUSE operating system library directories must be owned by root. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237611r646796_rule SLES-12-010875 CCI-001499 MEDIUM The SUSE operating system library files must be group-owned by root. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237612r646799_rule SLES-12-010876 CCI-001499 MEDIUM The SUSE operating system library directories must be group-owned by root. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237613r646802_rule SLES-12-010877 CCI-001499 MEDIUM The SUSE operating system must have system commands set to a mode of 0755 or less permissive. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237614r646805_rule SLES-12-010878 CCI-001499 MEDIUM The SUSE operating system must have directories that contain system commands set to a mode of 0755 or less permissive. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237615r646808_rule SLES-12-010879 CCI-001499 MEDIUM The SUSE operating system must have system commands owned by root. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237616r646811_rule SLES-12-010881 CCI-001499 MEDIUM The SUSE operating system must have directories that contain system commands owned by root. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237617r646814_rule SLES-12-010882 CCI-001499 MEDIUM The SUSE operating system must have system commands group-owned by root. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237618r646817_rule SLES-12-010883 CCI-001499 MEDIUM The SUSE operating system must have directories that contain system commands group-owned by root. If the SUSE operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirem
    SV-237619r646820_rule SLES-12-030011 CCI-000197 MEDIUM The SUSE operating system must not have the vsftpd package installed if not required for operational support. It is detrimental for SUSE operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked, and therefore may remain unsecured. They increase
    SV-237620r646823_rule SLES-12-030362 CCI-000366 MEDIUM The SUSE operating system must not forward Internet Protocol version 6 (IPv6) source-routed packets by default. Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the forwarding of
    SV-237621r646826_rule SLES-12-030363 CCI-000366 MEDIUM The SUSE operating system must prevent Internet Protocol version 6 (IPv6) Internet Control Message Protocol (ICMP) redirect messages from being accepted. ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host's route table and are unauthenticated. An illicit ICMP redirect message could result in a man-in-the-mi
    SV-237622r646829_rule SLES-12-030364 CCI-000366 MEDIUM The SUSE operating system must not be performing Internet Protocol version 6 (IPv6) packet forwarding unless the system is a router. Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this software is used when not required, system network information may be unnecessarily transmitted across the network.
    SV-237623r646832_rule SLES-12-030365 CCI-000366 MEDIUM The SUSE operating system must not be performing Internet Protocol version 6 (IPv6) packet forwarding by default unless the system is a router. Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this software is used when not required, system network information may be unnecessarily transmitted across the network.