Cisco ASA NDM 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: V1R3

Published: 2022-11-21

Updated At: 2023-01-25 00:40:07

Compare/View Releases

Select any two versions of this STIG to compare the individual requirements

Select any old version/release of this STIG to view the previous requirements

Actions

Download

Filter

Findings
Severity Open Not Reviewed Not Applicable Not a Finding
Overall 0 0 0 0
Low 0 0 0 0
Medium 0 0 0 0
High 0 0 0 0
Drop CKL or SCAP (XCCDF) results here.

    Vuln Rule Version CCI Severity Title Description Status Finding Details Comments
    SV-239896r666051_rule CASA-ND-000010 CCI-000054 MEDIUM The Cisco ASA must be configured to limit the number of concurrent management sessions to an organization-defined number. Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administrator based on account type, role, or access type is helpfu
    SV-239897r666054_rule CASA-ND-000090 CCI-000018 MEDIUM The Cisco ASA must be configured to automatically audit account creation. Upon gaining access to a network device, an attacker will often first attempt to create a persistent method of reestablishing access. One way to accomplish this is to create a new account. Notification of account creation helps to mitigate this risk. Audi
    SV-239898r666057_rule CASA-ND-000100 CCI-001403 MEDIUM The Cisco ASA must be configured to automatically audit account modification. Since the accounts in the network device are privileged or system-level accounts, account management is vital to the security of the network device. Account management by a designated authority ensures access to the network device is being controlled in a
    SV-239899r682909_rule CASA-ND-000110 CCI-001404 MEDIUM The Cisco ASA must be configured to automatically audit account-disabling actions. Account management, as a whole, ensures access to the network device is being controlled in a secure manner by granting access to only authorized personnel. Auditing account disabling actions will support account management procedures. When device managem
    SV-239900r666063_rule CASA-ND-000120 CCI-001405 MEDIUM The Cisco ASA must be configured to automatically audit account removal actions. Account management, as a whole, ensures access to the network device is being controlled in a secure manner by granting access to only authorized personnel. Auditing account removal actions will support account management procedures. When device managemen
    SV-239901r666066_rule CASA-ND-000140 CCI-001368 MEDIUM The Cisco ASA must be configured to enforce approved authorizations for controlling the flow of management information within the Cisco ASA based on information flow control policies. A mechanism to detect and prevent unauthorized communication flow must be configured or provided as part of the system design. If management information flow is not enforced based on approved authorizations, the network device may become compromised. Info
    SV-239902r666069_rule CASA-ND-000160 CCI-000048 MEDIUM The Cisco ASA must be configured to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the device. Display of the DoD-approved use notification before granting access to the network device ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, a
    SV-239903r666072_rule CASA-ND-000210 CCI-000166 MEDIUM The Cisco ASA must be configured to protect against an individual (or process acting on behalf of an individual) falsely denying having performed organization-defined actions to be covered by non-repudiation. This requirement supports non-repudiation of actions taken by an administrator and is required in order to maintain the integrity of the configuration management process. All configuration changes to the network device are logged. To meet this requirement
    SV-239904r666075_rule CASA-ND-000240 CCI-000172 MEDIUM The Cisco ASA must be configured to generate audit records when successful/unsuccessful attempts to access privileges occur. 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-239905r666078_rule CASA-ND-000260 CCI-000130 MEDIUM The Cisco ASA must be configured to produce audit log records containing sufficient information to establish what type of event occurred. It is essential for security personnel to know what is being done, what was attempted, where it was done, when it was done, and by whom it was done in order to compile an accurate risk assessment. Associating event types with detected events in the applic
    SV-239906r666081_rule CASA-ND-000270 CCI-000131 MEDIUM The Cisco ASA must be configured to produce audit records containing information to establish when (date and time) the events occurred. It is essential for security personnel to know what is being done, what was attempted, where it was done, when it was done, and by whom it was done in order to compile an accurate risk assessment. Logging the date and time of each detected event provides
    SV-239907r666084_rule CASA-ND-000280 CCI-000132 MEDIUM The Cisco ASA must be configured to produce audit records containing information to establish where the events occurred. In order to compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know where events occurred, such as device hardware components, device software modules, session identifiers, filenames, host names, a
    SV-239908r666087_rule CASA-ND-000290 CCI-000133 MEDIUM The Cisco ASA must be configured to produce audit log records containing information to establish the source of events. In order to compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know the source of the event. The source may be a component, module, or process within the device or an external session, administrato
    SV-239909r666090_rule CASA-ND-000300 CCI-000134 MEDIUM The Cisco ASA must be configured to produce audit records that contain information to establish the outcome of the event. Without information about the outcome of events, security personnel cannot make an accurate assessment as to whether an attack was successful or if changes were made to the security state of the system. Event outcomes can include indicators of event succ
    SV-239910r666093_rule CASA-ND-000320 CCI-000135 MEDIUM The Cisco ASA must be configured to generate audit records containing the full-text recording of privileged commands. Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. Organizations consider limiting the additional audit information to only that information explicitly needed for specific audit requ
    SV-239911r666096_rule CASA-ND-000430 CCI-000382 HIGH The Cisco ASA must be configured to prohibit the use of all unnecessary and/or non-secure functions, ports, protocols, and/or services. In order 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 unused or unnecessary physical and logical ports/protocol
    SV-239912r851023_rule CASA-ND-000450 CCI-001358 MEDIUM The Cisco ASA must be configured with only one local account to be used as the account of last resort in the event the authentication server is unavailable. Authentication for administrative (privileged level) access to the device is required at all times. An account can be created on the device's local database for use when the authentication server is down or connectivity between the device and the authenti
    SV-239913r851024_rule CASA-ND-000470 CCI-001941 MEDIUM The Cisco ASA must be configured to implement replay-resistant authentication mechanisms for network access to privileged accounts. A replay attack may enable an unauthorized user to gain access to the application. Authentication sessions between the authenticator and the application validating the user credentials must not be vulnerable to a replay attack. An authentication process
    SV-239914r666105_rule CASA-ND-000490 CCI-000205 MEDIUM The Cisco ASA must be configured to enforce a minimum 15-character password length. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password length is one factor of several that helps to determine strength and how long it takes to crack a passwor
    SV-239915r666108_rule CASA-ND-000520 CCI-000192 MEDIUM The Cisco ASA must be configured to enforce password complexity by requiring that at least one uppercase character be used. Use of a complex passwords helps to 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
    SV-239916r666111_rule CASA-ND-000530 CCI-000193 MEDIUM The Cisco ASA must be configured to enforce password complexity by requiring that at least one lowercase character be used. Use of a complex password helps to 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
    SV-239917r666114_rule CASA-ND-000550 CCI-000194 MEDIUM The Cisco ASA must be configured to enforce password complexity by requiring that at least one numeric character be used. Use of a complex password helps to 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
    SV-239918r666117_rule CASA-ND-000570 CCI-001619 MEDIUM The Cisco ASA must be configured to enforce password complexity by requiring that at least one special character be used. Use of a complex password helps to 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
    SV-239919r666120_rule CASA-ND-000580 CCI-000195 MEDIUM The Cisco ASA must be configured to require that when a password is changed, the characters are changed in at least eight of the positions within the password. If the application 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 changed c
    SV-239920r666196_rule CASA-ND-000690 CCI-001133 HIGH The Cisco ASA must be configured to terminate all network connections associated with a device management session at the end of the session, or the session must be terminated after 10 minutes of inactivity except to fulfill documented and validated mission requirements. 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-239921r851025_rule CASA-ND-000910 CCI-002234 MEDIUM The Cisco ASA must be configured to audit the execution of 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-239922r851026_rule CASA-ND-000920 CCI-001849 MEDIUM The Cisco ASA must be configured to allocate audit record storage capacity in accordance with organization-defined audit record storage requirements. In order to ensure network devices have a sufficient storage capacity in which to write the audit logs, they need to be able to allocate audit record storage capacity. The task of allocating audit record storage capacity is usually performed during initi
    SV-239923r851027_rule CASA-ND-000930 CCI-001858 MEDIUM The Cisco ASA must be configured to generate an immediate real-time alert of all audit failure events requiring real-time alerts. 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 a real-time alert, security personnel may be unaware of an impending failure of the audit capability and system operation
    SV-239924r877987_rule CASA-ND-000940 CCI-001893 MEDIUM The Cisco ASA must be configured to synchronize its clock with the primary and secondary time sources using redundant authoritative time sources. The loss of connectivity to a particular authoritative time source will result in the loss of time synchronization (free-run mode) and increasingly inaccurate time stamps on audit events and other functions. Multiple time sources provide redundancy by in
    SV-239925r851029_rule CASA-ND-000970 CCI-001889 MEDIUM The Cisco ASA must be configured to record time stamps for audit records that meet a granularity of one second for a minimum degree of precision. Without sufficient granularity of time stamps, it is not possible to adequately determine the chronological order of records. Time stamps generated by the application include date and time. Granularity of time measurements refers to the degree of synchron
    SV-239926r851031_rule CASA-ND-000980 CCI-001890 MEDIUM The Cisco ASA must be configured to record time stamps for audit records that can be mapped to 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 application include date and time. Time is commonly expressed in UTC, a modern continuation of G
    SV-239927r851032_rule CASA-ND-001050 CCI-001967 MEDIUM The Cisco ASA must be configured to authenticate Simple Network Management Protocol (SNMP) messages using a FIPS-validated Keyed-Hash Message Authentication Code (HMAC). Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Bidirectional authentication provides stronger safeguards to validate the identity of other devices for connections that are of gre
    SV-239928r851033_rule CASA-ND-001070 CCI-001967 MEDIUM The Cisco ASA must be configured to encrypt Simple Network Management Protocol (SNMP) messages using a FIPS 140-2 approved algorithm. Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Bidirectional authentication provides stronger safeguards to validate the identity of other devices for connections that are of gre
    SV-239929r851034_rule CASA-ND-001080 CCI-001967 MEDIUM The Cisco ASA must be configured to authenticate Network Time Protocol sources using authentication that is cryptographically based. If Network Time Protocol is not authenticated, an attacker can introduce a rogue NTP server. This rogue server can then be used to send incorrect time information to network devices, which will make log timestamps inaccurate and affect scheduled actions.
    SV-239930r851035_rule CASA-ND-001140 CCI-002890 HIGH The Cisco ASA must be configured to use FIPS-validated Keyed-Hash Message Authentication Code (HMAC) to protect the integrity of non-local maintenance and diagnostic communications. Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised. Non-local maintenance and diagnostic activit
    SV-239931r851036_rule CASA-ND-001150 CCI-003123 HIGH The Cisco ASA must be configured to implement cryptographic mechanisms using a FIPS 140-2 approved algorithm to protect the confidentiality of remote maintenance sessions. This requires the use of secure protocols instead of their unsecured counterparts, such as SSH instead of telnet, SCP instead of FTP, and HTTPS instead of HTTP. If unsecured protocols (lacking cryptographic mechanisms) are used for sessions, the contents
    SV-239932r851037_rule CASA-ND-001180 CCI-002385 MEDIUM The Cisco ASA must be configured to protect against known types of Denial of Service (DoS) attacks by enabling the Threat Detection feature. 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 network devices to mit
    SV-239933r666162_rule CASA-ND-001200 CCI-000172 MEDIUM The Cisco ASA must be configured to generate audit records when successful/unsuccessful attempts to modify administrator privileges occur. 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-239934r666165_rule CASA-ND-001210 CCI-000172 MEDIUM The Cisco ASA must be configured to generate audit records when successful/unsuccessful attempts to delete administrator privileges occur. 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-239935r666168_rule CASA-ND-001220 CCI-000172 MEDIUM The Cisco ASA must be configured to generate audit records when successful/unsuccessful logon attempts occur. 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-239936r666171_rule CASA-ND-001230 CCI-000172 MEDIUM The Cisco ASA must be configured to generate audit records for privileged activities or other system-level access. 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-239937r666174_rule CASA-ND-001240 CCI-000172 MEDIUM The Cisco ASA must be configured to generate audit records showing starting and ending time for administrator access to the system. 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-239938r666177_rule CASA-ND-001250 CCI-000172 MEDIUM The Cisco ASA must be configured to generate audit records when concurrent logons from different workstations occur. 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-239939r851038_rule CASA-ND-001260 CCI-001851 MEDIUM The Cisco ASA must be configured to offload audit records onto a different system or media than the system being audited. Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Offloading is a common process in information systems with limited audit storage capacity.
    SV-239940r877988_rule CASA-ND-001310 CCI-000370 HIGH The Cisco ASA must be configured to use an authentication server to authenticate users prior to granting administrative access. Centralized management of authentication settings increases the security of remote and non-local access methods. This control is particularly important protection against the insider threat. With robust centralized management, audit records for administra
    SV-239941r877989_rule CASA-ND-001350 CCI-000537 MEDIUM The Cisco ASA must be configured to conduct backups of system-level information contained in the information system when changes occur. System-level information includes default and customized settings and security attributes, including ACLs that relate to the network device configuration, as well as software required for the execution and operation of the device. Information system backu
    SV-239942r877990_rule CASA-ND-001370 CCI-001159 MEDIUM The Cisco ASA must be configured to obtain its public key certificates from an appropriate certificate policy through an approved service provider. For user certificates, each organization obtains certificates from an approved, shared service provider, as required by OMB policy. For federal agencies operating a legacy public key infrastructure cross-certified with the Federal Bridge Certification Aut
    SV-239943r863234_rule CASA-ND-001410 CCI-001851 HIGH The Cisco ASA must be configured to send log data to a central log server for the purpose of forwarding alerts to organization-defined personnel and/or the firewall administrator. The aggregation of log data kept on a syslog server can be used to detect attacks and trigger an alert to the appropriate security personnel. The stored log data can used to detect weaknesses in security that enable the network IA team to find and address
    SV-239944r877991_rule CASA-ND-001420 CCI-003376 HIGH The Cisco ASA must be running an operating system release that is currently supported by Cisco Systems. Network devices running an unsupported operating system lack current security fixes required to mitigate the risks associated with recent vulnerabilities.