Application Layer Gateway (ALG) Security Requirements Guide (SRG)

The Application Layer Gateway (ALG) SRG is published as a tool to improve the security of Department of Defense (DoD) information systems. The requirements are derived from the NIST 800-53 and related documents. Comments or proposed revisions to STIG or SRG documents should be sent to this email address: [email protected]

Details

Version / Release: V1R2

Published: 2015-06-30

Updated At: 2018-09-23 02:02:20

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-68583r1_rule SRG-NET-000053-ALG-000001 CCI-000054 MEDIUM The ALG providing user access control intermediary services must limit the number of concurrent sessions to an organization-defined number for all accounts and/or account types. Network element management includes the ability to control the number of users and user sessions that utilize a network element. Limiting the number of current sessions per user is helpful in limiting risks related to DoS attacks. This requirement addres
    SV-68599r1_rule SRG-NET-000061-ALG-000009 CCI-000067 MEDIUM The ALG providing intermediary services for remote access communications traffic must ensure inbound and outbound traffic is monitored for compliance with remote access security policies. Automated monitoring of remote access traffic allows organizations to detect cyber attacks and also ensure ongoing compliance with remote access policies by inspecting connection activities of remote access capabilities. Remote access methods include bot
    SV-68601r1_rule SRG-NET-000313-ALG-000010 CCI-002314 MEDIUM The ALG providing intermediary services for remote access communications traffic must control remote access methods. Remote access devices, such as those providing remote access to network devices and information systems, which lack automated control capabilities, increase risk and makes remote user access management difficult at best. Remote access is access to DoD-no
    SV-68603r1_rule SRG-NET-000062-ALG-000011 CCI-000068 MEDIUM The ALG providing intermediary services for remote access communications traffic must use encryption services that implement NIST FIPS-validated cryptography to protect the confidentiality of remote access sessions. 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-68605r1_rule SRG-NET-000062-ALG-000150 CCI-000068 MEDIUM The ALG that provides intermediary services for TLS must be configured to comply with the required TLS settings in NIST SP 800-52. SP 800-52 provides guidance on using the most secure version and configuration of the TLS/SSL protocol. Using older unauthorized versions or incorrectly configuring protocol negotiation makes the gateway vulnerable to known and unknown attacks which explo
    SV-68607r1_rule SRG-NET-000063-ALG-000012 CCI-001453 MEDIUM The ALG providing intermediary services for remote access communications traffic must use NIST FIPS-validated cryptography to protect the integrity of remote access sessions. Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access is access to DoD-nonpublic information systems by an authorized user (or an information system) communicating through an extern
    SV-68609r1_rule SRG-NET-000314-ALG-000013 CCI-002322 MEDIUM The ALG providing intermediary services for remote access communications traffic must provide the capability to immediately disconnect or disable remote access to the information system. Without the ability to immediately disconnect or disable remote access, an attack or other compromise taking progress would not be immediately stopped. Remote access functionality must have the capability to immediately disconnect current users remotely
    SV-68611r1_rule SRG-NET-000318-ALG-000014 CCI-002346 MEDIUM To protect against data mining, the ALG providing content filtering must prevent code injection attacks from being launched against data storage objects, including, at a minimum, databases, database records, queries, and fields. Data mining is the analysis of large quantities of data to discover patterns and is used in intelligence gathering. Failure to prevent attacks launched against organizational information from unauthorized data mining may result in the compromise of inform
    SV-68613r1_rule SRG-NET-000318-ALG-000151 CCI-002346 MEDIUM To protect against data mining, the ALG providing content filtering must prevent code injection attacks launched against application objects including, at a minimum, application URLs and application code. Data mining is the analysis of large quantities of data to discover patterns and is used in intelligence gathering. Failure to prevent attacks launched against organizational information from unauthorized data mining may result in the compromise of inform
    SV-68615r1_rule SRG-NET-000318-ALG-000152 CCI-002346 MEDIUM To protect against data mining, the ALG providing content filtering must prevent SQL injection attacks launched against data storage objects, including, at a minimum, databases, database records, and database fields. Data mining is the analysis of large quantities of data to discover patterns and is used in intelligence gathering. Failure to prevent attacks launched against organizational information from unauthorized data mining may result in the compromise of inform
    SV-68617r1_rule SRG-NET-000319-ALG-000015 CCI-002347 MEDIUM To protect against data mining, the ALG providing content filtering must detect code injection attacks from being launched against data storage objects, including, at a minimum, databases, database records, queries, and fields. Data mining is the analysis of large quantities of data to discover patterns and is used in intelligence gathering. Failure to detect attacks launched against organizational databases may result in the compromise of information. Injection attacks allow a
    SV-68619r1_rule SRG-NET-000319-ALG-000153 CCI-002347 MEDIUM To protect against data mining, the ALG providing content filtering as part of its intermediary services must detect code injection attacks launched against application objects including, at a minimum, application URLs and application code. Data mining is the analysis of large quantities of data to discover patterns and is used in intelligence gathering. Failure to detect attacks launched against organizational applications may result in the compromise of information. Injection attacks allo
    SV-68621r1_rule SRG-NET-000015-ALG-000016 CCI-000213 MEDIUM The ALG must enforce approved authorizations for logical access to information and system resources by employing identity-based, role-based, and/or attribute-based security policies. Successful authentication must not automatically give an entity access to an asset or security boundary. The lack of authorization-based access control could result in the immediate compromise and unauthorized access to sensitive information. All DoD syst
    SV-68623r1_rule SRG-NET-000018-ALG-000017 CCI-001368 MEDIUM The ALG must enforce approved authorizations for controlling the flow of information within the network based on attribute- and content-based inspection of the source, destination, headers, and/or content of the communications traffic. Information flow control regulates where information is allowed to travel within a network. The flow of all network traffic must be monitored and controlled so it does not introduce any unacceptable risk to the network infrastructure or data. Information
    SV-68625r1_rule SRG-NET-000019-ALG-000018 CCI-001414 MEDIUM The ALG must restrict or block harmful or suspicious communications traffic by controlling the flow of information between interconnected networks based on attribute- and content-based inspection of the source, destination, headers, and/or content of the communications traffic. Information flow control regulates where information is allowed to travel within a network and between interconnected networks. Blocking or restricting detected harmful or suspicious communications between interconnected networks enforces approved authori
    SV-68631r1_rule SRG-NET-000019-ALG-000019 CCI-001414 MEDIUM The ALG must immediately use updates made to policy enforcement mechanisms such as policy filters, rules, signatures, and analysis algorithms for gateway and/or intermediary functions. Information flow policies regarding dynamic information flow control include, for example, allowing or disallowing information flows based on changes to the PPSM CAL, vulnerability assessments, or mission conditions. Changing conditions include changes in
    SV-68633r1_rule SRG-NET-000019-ALG-000021 CCI-001414 MEDIUM The ALG that is part of a CDS must apply information flow control to data transferred between security domains by means of a policy filter which consists of a set of hardware and/or software. Information flow control regulates where information is allowed to travel within a network and between interconnected networks. The flow of all network traffic must be monitored and controlled so it does not introduce any unacceptable risk to the network
    SV-68635r1_rule SRG-NET-000041-ALG-000022 CCI-000048 MEDIUM The ALG providing user access control intermediary services must display the Standard Mandatory DoD-approved Notice and Consent Banner before granting access to the network. Display of a standardized and approved use notification before granting access to the network ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standard
    SV-68637r1_rule SRG-NET-000042-ALG-000023 CCI-000050 MEDIUM The ALG providing user access control intermediary services must retain the Standard Mandatory DoD-approved Notice and Consent Banner on the screen until users acknowledge the usage conditions and take explicit actions to log on for further access. The banner must be acknowledged by the user prior to allowing the user access to the network. 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 user, DoD wil
    SV-68639r1_rule SRG-NET-000043-ALG-000024 CCI-001384 MEDIUM The ALG providing user access control intermediary services for publicly accessible applications must display the Standard Mandatory DoD-approved Notice and Consent Banner before granting access to the system. Display of a standardized and approved use notification before granting access to the publicly accessible network element ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, pol
    SV-68641r1_rule SRG-NET-000513-ALG-000026 CCI-000172 MEDIUM The ALG providing user access control intermediary services must 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-68643r1_rule SRG-NET-000492-ALG-000027 CCI-000172 MEDIUM The ALG must generate audit records when successful/unsuccessful attempts to access security objects occur. Without generating audit records that log usage of objects by subjects and other objects, 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 gener
    SV-68645r1_rule SRG-NET-000493-ALG-000028 CCI-000172 MEDIUM The ALG that is part of a CDS must generate audit records when successful/unsuccessful attempts to access security levels 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-68647r1_rule SRG-NET-000494-ALG-000029 CCI-000172 MEDIUM The ALG must generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) 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-68649r1_rule SRG-NET-000495-ALG-000030 CCI-000172 MEDIUM The ALG providing user access control intermediary services must generate audit records when successful/unsuccessful attempts to modify 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-68651r1_rule SRG-NET-000496-ALG-000031 CCI-000172 MEDIUM The ALG must generate audit records when successful/unsuccessful attempts to modify security objects 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-68653r1_rule SRG-NET-000497-ALG-000032 CCI-000172 MEDIUM The ALG must generate audit records when successful/unsuccessful attempts to modify security levels 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-68655r1_rule SRG-NET-000498-ALG-000033 CCI-000172 MEDIUM The ALG must generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) 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-68657r1_rule SRG-NET-000499-ALG-000034 CCI-000172 MEDIUM The ALG providing user access control intermediary services must generate audit records when successful/unsuccessful attempts to delete 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-68659r1_rule SRG-NET-000500-ALG-000035 CCI-000172 MEDIUM The ALG must generate audit records when successful/unsuccessful attempts to delete security levels 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-68661r1_rule SRG-NET-000503-ALG-000038 CCI-000172 MEDIUM The ALG providing user access control intermediary services must 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 reco
    SV-68663r1_rule SRG-NET-000074-ALG-000043 CCI-000130 MEDIUM The ALG must produce audit records containing information to establish what type of events occurred. Without establishing what type of event occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, e
    SV-68665r1_rule SRG-NET-000075-ALG-000044 CCI-000131 MEDIUM The ALG must produce audit records containing information to establish when (date and time) the events occurred. Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment, and provide forensic analysis of network traffic patterns,
    SV-68667r1_rule SRG-NET-000076-ALG-000045 CCI-000132 MEDIUM The ALG must produce audit records containing information to establish where the events occurred. Without establishing where events occurred, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment, and provide forensic analysis, it is essential for securi
    SV-68669r1_rule SRG-NET-000077-ALG-000046 CCI-000133 MEDIUM The ALG must produce audit records containing information to establish the source of the events. Without establishing the source of the event, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment and provide forensic analysis, security personnel need to
    SV-68671r1_rule SRG-NET-000078-ALG-000047 CCI-000134 MEDIUM The ALG must produce audit records containing information to establish the outcome of the events. 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 network. Event outcomes can include indicators of event suc
    SV-68673r1_rule SRG-NET-000079-ALG-000048 CCI-001487 MEDIUM The ALG must generate audit records containing information to establish the identity of any individual or process associated with the event. Without information that establishes the identity of the subjects (i.e., users or processes acting on behalf of users) associated with the events, security personnel cannot determine responsibility for the potentially harmful event. Associating informati
    SV-68675r1_rule SRG-NET-000333-ALG-000049 CCI-001844 MEDIUM The ALG must be configured to support centralized management and configuration. Without the ability to centrally manage the content captured in the audit records, identification, troubleshooting, and correlation of suspicious behavior would be difficult and could lead to a delayed or incomplete analysis of an ongoing attack. The con
    SV-68677r1_rule SRG-NET-000334-ALG-000050 CCI-001851 MEDIUM The ALG must off-load audit records onto a centralized log server. 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. This does not apply to audit logs generated on behalf of the
    SV-68679r1_rule SRG-NET-000511-ALG-000051 CCI-001851 MEDIUM The ALG must off-load audit records onto a centralized log server in real time. Off-loading ensures audit information does not get overwritten if the limited audit storage capacity is reached and also protects the audit record in case the system/component being audited is compromised. Off-loading is a common process in information s
    SV-68681r1_rule SRG-NET-000511-ALG-000052 CCI-001851 MEDIUM The ALG that is part of a CDS must have the capability to implement journaling. A journaling file system is a file system that keeps track of the changes that will be made in a journal (usually a circular log in a dedicated area of the file system) before committing them to the main file system. In the event of a system crash or powe
    SV-68683r1_rule SRG-NET-000335-ALG-000053 CCI-001858 MEDIUM The ALG must provide an immediate real-time alert to, at a minimum, the SCA and ISSO, of all audit failure events where the detection and/or prevention function is unable to write events to either local storage or the centralized server. Without a real-time alert, security personnel may be unaware of an impending failure of the audit capability and system operation may be adversely affected. Alerts provide organizations with urgent messages. Real-time alerts provide these messages immedi
    SV-68685r1_rule SRG-NET-000088-ALG-000054 CCI-000139 MEDIUM The ALG must send an alert to, at a minimum, the ISSO and SCA when an audit processing failure occurs. 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 opera
    SV-68687r1_rule SRG-NET-000089-ALG-000055 CCI-000140 MEDIUM The ALG must shut down by default upon audit failure (unless availability is an overriding concern). It is critical that when the network element is at risk of failing to process audit logs as required, it take action to mitigate the failure. Audit processing failures include: software/hardware errors, failures in the audit capturing mechanisms, and audi
    SV-68689r1_rule SRG-NET-000098-ALG-000056 CCI-000162 MEDIUM The ALG must protect audit information from unauthorized read access. Auditing and logging are key components of any security architecture. Logging the actions of specific events provides a means to investigate an attack, recognize resource utilization or capacity thresholds, or to simply identify an improperly configured n
    SV-68691r1_rule SRG-NET-000099-ALG-000057 CCI-000163 MEDIUM The ALG must protect audit information from unauthorized modification. If audit data were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit data, the information system and/or the application must
    SV-68693r1_rule SRG-NET-000100-ALG-000058 CCI-000164 MEDIUM The ALG must protect audit information from unauthorized deletion. If audit data were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit data, the information system and/or the application must
    SV-68695r1_rule SRG-NET-000101-ALG-000059 CCI-001493 MEDIUM The ALG must protect audit tools from unauthorized access. Protecting audit data 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 data. Network elements providing tools to interface w
    SV-68697r1_rule SRG-NET-000102-ALG-000060 CCI-001494 MEDIUM The ALG must protect audit tools from unauthorized modification. Protecting audit data 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 data. Network elements providing tools to interface w
    SV-68699r1_rule SRG-NET-000103-ALG-000061 CCI-001495 MEDIUM The ALG must protect audit tools from unauthorized deletion. Protecting audit data 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 data. Network elements providing tools to interface w
    SV-68701r1_rule SRG-NET-000512-ALG-000062 CCI-000366 MEDIUM The ALG must be configured in accordance with the security configuration settings based on DoD security policy and technology-specific security best practices. Configuring the network element to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive securi
    SV-68703r1_rule SRG-NET-000512-ALG-000064 CCI-000366 MEDIUM The ALG that provides intermediary services for SMTP must inspect inbound and outbound SMTP and Extended SMTP communications traffic for protocol compliance and protocol anomalies. Application protocol anomaly detection examines application layer protocols such as SMTP to identify attacks based on observed deviations in the normal RFC behavior of a protocol or service. This type of monitoring allows for the detection of known and un
    SV-68705r1_rule SRG-NET-000512-ALG-000065 CCI-000366 MEDIUM The ALG that intermediary services for FTP must inspect inbound and outbound FTP communications traffic for protocol compliance and protocol anomalies. Application protocol anomaly detection examines application layer protocols such as FTP to identify attacks based on observed deviations in the normal RFC behavior of a protocol or service. This type of monitoring allows for the detection of known and unk
    SV-68707r1_rule SRG-NET-000512-ALG-000066 CCI-000366 MEDIUM The ALG that provides intermediary services for HTTP must inspect inbound and outbound HTTP traffic for protocol compliance and protocol anomalies. Application protocol anomaly detection examines application layer protocols such as HTTP to identify attacks based on observed deviations in the normal RFC behavior of a protocol or service. This type of monitoring allows for the detection of known and un
    SV-68709r1_rule SRG-NET-000323-ALG-000067 CCI-000366 MEDIUM The ALG that is part of a CDS must use source and destination security attributes associated with organization-defined information, source, and/or destination objects to enforce organization-defined information flow control policies as a basis for flow control decisions. If information flow is not enforced based on approved authorizations, the system may become compromised. A mechanism to detect and prevent unauthorized communication flow must be configured and used to filter information flow across security boundaries p
    SV-68711r1_rule SRG-NET-000021-ALG-000068 CCI-000034 MEDIUM The ALG that is part of a CDS must allow privileged administrators to enable/disable all security policy filters used to enforce information flow control. A crucial part of any information flow control solution is the ability to enable and disable policy filters in order to respond to changes in organizational security posture and mission conditions. This is not a requirement to restrict the capability to
    SV-68713r1_rule SRG-NET-000022-ALG-000069 CCI-000035 MEDIUM The ALG that is part of a CDS must allow privileged administrators to configure and make changes to all security policy filters that are used to enforce information flow control. The use of security policy filters provides protection for the confidentiality of data by restricting the flow of data. The capability to configure policy filters allows the ALG to enforce more granular security policies to meet complex and changing missi
    SV-68715r1_rule SRG-NET-000324-ALG-000070 CCI-000366 MEDIUM The ALG that is part of a CDS, when transferring information between different security domains, must use organization-defined data type identifiers to validate data essential for information flow decisions. Information flow decisions based on invalid data may allow unintended and unauthorized data flows, and therefore risk the confidentiality of information. They may also result in the unauthorized release (spill) of information. Data type identifiers inclu
    SV-68717r1_rule SRG-NET-000282-ALG-000071 CCI-000219 MEDIUM The ALG that is part of a CDS must decompose information into organization-defined, policy-relevant subcomponents for submission to policy enforcement mechanisms before transferring information between different security domains. Policy enforcement mechanisms apply filtering, inspection, and/or sanitization rules to the policy-relevant subcomponents of information to facilitate flow enforcement prior to transferring such information to different security domains. Parsing transfer
    SV-68719r1_rule SRG-NET-000283-ALG-000072 CCI-000366 MEDIUM The ALG that is part of a CDS, when transferring information between different security domains, must implement organization-defined security policy filters requiring fully enumerated formats that restrict data structure and content. Data structure and content restrictions reduce the range of potential malicious and/or unsanctioned content in cross-domain transactions. Security policy filters that restrict data structures include, for example, restricting file sizes and field lengths
    SV-68721r1_rule SRG-NET-000284-ALG-000073 CCI-000366 MEDIUM The ALG that is part of a CDS, when transferring information between different security domains, must examine the information for the presence of organization-defined unsanctioned information. Without the capability to examine information, there is no means to determine the presence of information not authorized for transfer. Information flow decisions based on unexamined data may allow unintended and unauthorized data flows and therefore risk
    SV-68723r1_rule SRG-NET-000285-ALG-000074 CCI-000366 MEDIUM The ALG that is part of a CDS must prohibit the transfer of unsanctioned information in accordance with the security policy when transferring information between different security domains. The ability to prohibit information transfer is fundamentally necessary to prevent unintended and unauthorized data flows. Failure to prohibit information transfer when necessary will risk the confidentiality of information and may also result in the unau
    SV-68725r1_rule SRG-NET-000325-ALG-000075 CCI-000366 MEDIUM The ALG that is part of a CDS must uniquely identify and authenticate source by organization, system, application, and/or individual for information transfer. Attribution is a critical component of a security concept of operations. The ability to identify source and destination points for information flowing in information systems, allows the forensic reconstruction of events when required, and encourages polic
    SV-68727r1_rule SRG-NET-000326-ALG-000076 CCI-000366 MEDIUM The ALG that is part of a CDS must uniquely identify and authenticate destination by organization, system, application, and/or individual for information transfer. Attribution is a critical component of a security concept of operations. The ability to identify source and destination points for information flowing in information systems, allows the forensic reconstruction of events when required, and encourages polic
    SV-68729r1_rule SRG-NET-000327-ALG-000077 CCI-000366 MEDIUM The ALG that is part of a CDS must bind security attributes to information using organization-defined binding techniques to facilitate information flow policy enforcement. If security attributes are not associated with the information being transmitted between systems, then access control policies and information flows which depend on these security attributes will not function and may also result in the unauthorized releas
    SV-68731r1_rule SRG-NET-000328-ALG-000078 CCI-000366 MEDIUM The ALG that is part of a CDS, when transferring information between different security domains, must apply the same security policy filtering to metadata as it applies to data payloads. Subjecting metadata to the same filtering and inspection policies as payload data helps to mitigate the risk of data compromise through covert channels. This security measure also helps prevent the bypassing of security policy filtering.
    SV-68733r1_rule SRG-NET-000029-ALG-000079 CCI-000027 MEDIUM The ALG that is part of a CDS must enforce dynamic traffic flow control based on organization-defined policies. Information flow policies regarding dynamic information flow control include allowing or disallowing information flows based on changing conditions or mission/operational considerations. Changing conditions include changes in organizational risk tolerance
    SV-68735r1_rule SRG-NET-000280-ALG-000080 CCI-000030 MEDIUM The ALG that is part of a CDS must enforce information flow control based on organization-defined metadata. Enforcing allowed information flows based on metadata enables simpler and more effective flow control. Metadata is information used to describe the characteristics of data. Metadata can include structural metadata describing data structures (e.g., data fo
    SV-68737r1_rule SRG-NET-000280-ALG-000081 CCI-000030 MEDIUM The ALG that is part of a CDS must block the transfer of data with malformed security attribute metadata structures. Enforcing allowed information flows based on metadata enables simpler and more effective flow control. Metadata is information used to describe the characteristics of data. Metadata can include structural metadata describing data structures (e.g., data fo
    SV-68739r1_rule SRG-NET-000032-ALG-000082 CCI-000031 MEDIUM The ALG that is part of a CDS must enforce organization-defined one-way information flows using hardware mechanisms. Information flow control regulates where information is allowed to travel within a network and between interconnected networks. The flow of all network traffic must be monitored and controlled so it does not introduce any unacceptable risk to the network
    SV-68741r1_rule SRG-NET-000033-ALG-000083 CCI-000032 MEDIUM The ALG that is part of a CDS must enforce information flow control using organization-defined security policy filters as a basis for flow control decisions for organization-defined information flows. The use of security policy filters provides protection for the confidentiality of data by restricting the flow of data. Configure organization-defined specific filters and their order of execution for each information flow. For example, security policy f
    SV-68743r1_rule SRG-NET-000329-ALG-000084 CCI-000366 MEDIUM The ALG that is part of a CDS must enforce the use of human reviews for organization-defined information flows under organization-defined conditions. Without network element enforcement of human reviews, security policy filters may have false positives and false negatives in marginal situations, which may result in loss of confidentiality or availability. Organizations define security policy filters f
    SV-68745r1_rule SRG-NET-000131-ALG-000085 CCI-000381 MEDIUM The ALG must not have unnecessary services and functions enabled. Information systems are capable of providing a wide variety of functions (capabilities or processes) and services. Some of these functions and services are installed and enabled by default. The organization must determine which functions and services are
    SV-68747r1_rule SRG-NET-000131-ALG-000086 CCI-000381 MEDIUM The ALG must be configured to remove or disable unrelated or unneeded application proxy services. Unrelated or unneeded proxy services increase the attack vector and add excessive complexity to the securing of the ALG. Multiple application proxies can be installed on many ALGs. However, proxy types must be limited to related functions. At a minimum, t
    SV-68749r1_rule SRG-NET-000132-ALG-000087 CCI-000382 MEDIUM The ALG must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. 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 or restrict unused or unnecessary physical and logical po
    SV-68751r1_rule SRG-NET-000337-ALG-000096 CCI-002038 MEDIUM The ALG providing user authentication intermediary services must require users to re-authenticate when organization-defined circumstances or situations require re-authentication. Without re-authentication, users may access resources or perform tasks for which they do not have authorization. In addition to the re-authentication requirements associated with session locks, organizations may require re-authentication of individuals a
    SV-68753r1_rule SRG-NET-000138-ALG-000088 CCI-000764 MEDIUM The ALG providing user access control intermediary services must be configured with a pre-established trust relationship and mechanisms with appropriate authorities (e.g., Active Directory or AAA server) which validate user account access authorizations and privileges. User account and privilege validation must be centralized in order to prevent unauthorized access using changed or revoked privileges. ALGs can implement functions such as traffic filtering, authentication, access, and authorization functions based on co
    SV-68755r1_rule SRG-NET-000138-ALG-000063 CCI-000764 MEDIUM The ALG providing user authentication intermediary services must uniquely identify and authenticate organizational users (or processes acting on behalf of organizational users). To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to prevent potential misuse and compromise of the system. Organizational users include organizational employees or individuals the organ
    SV-68757r1_rule SRG-NET-000138-ALG-000089 CCI-000764 MEDIUM The ALG providing user authentication intermediary services must restrict user authentication traffic to specific authentication server(s). User authentication can be used as part of the policy filtering rule sets. Some URLs or network resources can be restricted to authenticated users only. Users are prompted by the application or browser for credentials. Authentication service may be provid
    SV-68759r2_rule SRG-NET-000339-ALG-000090 CCI-001951 MEDIUM The ALG providing user authentication intermediary services must implement multifactor authentication for remote access to non-privileged accounts such that one of the factors is provided by a device separate from the system gaining access. For remote access to non-privileged accounts, the purpose of requiring a device that is separate from the information system gaining access for one of the factors during multifactor authentication is to reduce the likelihood of compromising authentication
    SV-68761r1_rule SRG-NET-000340-ALG-000091 CCI-001948 MEDIUM The ALG providing user authentication intermediary services must implement multifactor authentication for remote access to privileged accounts such that one of the factors is provided by a device separate from the system gaining access. For remote access to privileged accounts, the purpose of requiring a device that is separate from the information system gaining access for one of the factors during multifactor authentication is to reduce the likelihood of compromising authentication cre
    SV-68767r1_rule SRG-NET-000140-ALG-000094 CCI-000766 MEDIUM The ALG providing user authentication intermediary services must use multifactor authentication for network access to non-privileged accounts. To assure accountability and prevent unauthenticated access, non-privileged users must utilize multifactor authentication to prevent potential misuse and compromise of the system. Multifactor authentication uses two or more factors to achieve authenticat
    SV-68769r2_rule SRG-NET-000147-ALG-000095 CCI-001942 MEDIUM The ALG providing user authentication intermediary services must implement replay-resistant authentication mechanisms for network access to non-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-68771r1_rule SRG-NET-000400-ALG-000097 CCI-000197 MEDIUM The ALG providing user authentication intermediary services must transmit only 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. This requirement applies to ALGs that provide
    SV-68773r1_rule SRG-NET-000344-ALG-000098 CCI-002007 MEDIUM The ALG must prohibit the use of cached authenticators after an organization-defined time period. If the cached authenticator information is out of date, the validity of the authentication information may be questionable. This requirement applies to all ALGs which may cache user authenticators for use throughout a session. This requirement also appli
    SV-68775r1_rule SRG-NET-000345-ALG-000099 CCI-001991 MEDIUM The ALG providing user authentication intermediary services using PKI-based user authentication must implement a local cache of revocation data to support path discovery and validation in case of the inability to access revocation information via the network. Without configuring a local cache of revocation data, there is the potential to allow access to users who are no longer authorized (users with revoked certificates). The intent of this requirement is to require support for a secondary certificate validat
    SV-68777r1_rule SRG-NET-000164-ALG-000100 CCI-000185 MEDIUM The ALG that provides intermediary services for TLS must validate certificates used for TLS functions by performing RFC 5280-compliant certification path validation. A certificate's certification path is the path from the end entity certificate to a trusted root certification authority (CA). Certification path validation is necessary for a relying party to make an informed decision regarding acceptance of an end entit
    SV-68779r1_rule SRG-NET-000166-ALG-000101 CCI-000187 MEDIUM The ALG providing PKI-based user authentication intermediary services must map authenticated identities to the user account. Authorization for access to any network element requires an approved and assigned individual account identifier. To ensure only the assigned individual is using the account, the account must be bound to a user certificate when PKI-based authentication is
    SV-68781r1_rule SRG-NET-000169-ALG-000102 CCI-000804 MEDIUM The ALG providing user authentication intermediary services must uniquely identify and authenticate non-organizational users (or processes acting on behalf of non-organizational users). Lack of authentication enables anyone to gain access to the network or possibly a network element that provides opportunity for intruders to compromise resources within the network infrastructure. By identifying and authenticating non-organizational users
    SV-68789r1_rule SRG-NET-000349-ALG-000106 CCI-002014 MEDIUM The ALG providing user authentication intermediary services must conform to FICAM-issued profiles. Without conforming to Federal Identity, Credential, and Access Management (FICAM)-issued profiles, the information system may not be interoperable with FICAM-authentication protocols, such as SAML 2.0 and OpenID 2.0. Use of FICAM-issued profiles addresse
    SV-68791r1_rule SRG-NET-000213-ALG-000107 CCI-001133 MEDIUM The ALG must terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity. 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-68793r1_rule SRG-NET-000510-ALG-000025 CCI-002450 MEDIUM The ALG providing encryption intermediary services must implement NIST FIPS-validated cryptography to generate cryptographic hashes. Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The network element must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides
    SV-68795r1_rule SRG-NET-000510-ALG-000040 CCI-002450 MEDIUM The ALG providing encryption intermediary services must implement NIST FIPS-validated cryptography for digital signatures. Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The network element must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides
    SV-68797r1_rule SRG-NET-000510-ALG-000111 CCI-002450 MEDIUM The ALG providing encryption intermediary services must use NIST FIPS-validated cryptography to implement encryption services. Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The network element must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides
    SV-68855r1_rule SRG-NET-000228-ALG-000108 CCI-001166 MEDIUM The ALG must detect, at a minimum, mobile code that is unsigned or exhibiting unusual behavior, has not undergone a risk assessment, or is prohibited for use based on a risk assessment. Mobile code is defined as software modules obtained from remote systems, transferred across a network, and then downloaded and executed on a local system without explicit installation or execution by the recipient. Examples of mobile code include JavaScr
    SV-68857r1_rule SRG-NET-000288-ALG-000109 CCI-001695 MEDIUM The ALG providing content filtering must block or restrict detected prohibited mobile code. Mobile code is defined as software modules obtained from remote systems, transferred across a network, and then downloaded and executed on a local system without explicit installation or execution by the recipient. This applies to mobile code that may or
    SV-68859r1_rule SRG-NET-000289-ALG-000110 CCI-001169 MEDIUM The ALG providing content filtering must prevent the download of prohibited mobile code. Mobile code is defined as software modules obtained from remote systems, transferred across a network, and then downloaded and executed on a local system without explicit installation or execution by the recipient. This applies to mobile code that may or
    SV-68861r1_rule SRG-NET-000230-ALG-000113 CCI-001184 MEDIUM The ALG must protect the authenticity of communications sessions. Authenticity protection provides protection against man-in-the-middle attacks/session hijacking and the insertion of false information into sessions. This requirement focuses on communications protection for the application session rather than for the ne
    SV-68863r1_rule SRG-NET-000231-ALG-000114 CCI-001185 MEDIUM The ALG must invalidate session identifiers upon user logout or other session termination. Captured sessions can be reused in "replay" attacks. This requirement limits the ability of adversaries from capturing and continuing to employ previously valid session IDs. Session IDs are tokens generated by web applications to uniquely identify an app
    SV-68865r1_rule SRG-NET-000233-ALG-000115 CCI-001664 MEDIUM The ALG must recognize only system-generated session identifiers. Network elements (depending on function) utilize sessions and session identifiers to control application behavior and user access. If an attacker can guess the session identifier, or can inject or manually insert session information, the valid user's appl
    SV-68867r1_rule SRG-NET-000234-ALG-000116 CCI-001188 MEDIUM The ALG must generate unique session identifiers using a FIPS 140-2 approved random number generator. Sequentially generated session IDs can be easily guessed by an attacker. Employing the concept of randomness in the generation of unique session identifiers helps to protect against brute-force attacks to determine future session identifiers. This requir
    SV-68869r1_rule SRG-NET-000355-ALG-000117 CCI-002470 MEDIUM The ALG providing user authentication intermediary services using PKI-based user authentication must only accept end entity certificates issued by DoD PKI or DoD-approved PKI Certification Authorities (CAs) for the establishment of protected sessions. Non-DoD approved PKIs have not been evaluated to ensure that they have security controls and identity vetting procedures in place which are sufficient for DoD systems to rely on the identity asserted in the certificate. PKIs lacking sufficient security co
    SV-68871r1_rule SRG-NET-000236-ALG-000119 CCI-001665 MEDIUM In the event of a system failure of the ALG function, the ALG must save diagnostic information, log system messages, and load the most current security policies, rules, and signatures when restarted. Failure in a secure state can address safety or security in accordance with the mission needs of the organization. Failure to a secure state helps prevent a loss of confidentiality, integrity, or availability in the event of a failure of the information s
    SV-68873r1_rule SRG-NET-000362-ALG-000120 CCI-002385 MEDIUM The ALG must implement load balancing to limit the effects of known and unknown types of Denial of Service (DoS) attacks. If the network does not provide safeguards against DoS attacks, network resources will be unavailable to users. Load balancing provides service redundancy; which service redundancy reduces the susceptibility of the ALG to many DoS attacks. The ALG must b
    SV-68875r1_rule SRG-NET-000362-ALG-000112 CCI-002385 MEDIUM The ALG providing content filtering must protect against known and unknown types of Denial of Service (DoS) attacks by employing rate-based attack prevention behavior analysis. If the network does not provide safeguards against DoS attacks, network resources will be unavailable to users. Installation of content filtering gateways and application layer firewalls at key boundaries in the architecture mitigates the risk of DoS att
    SV-68877r1_rule SRG-NET-000362-ALG-000155 CCI-002385 MEDIUM The ALG providing content filtering must protect against or limit the effects of known and unknown types of Denial of Service (DoS) attacks by employing pattern recognition pre-processors. If the network does not provide safeguards against DoS attacks, network resources will be unavailable to users. Installation of content filtering gateways and application layer firewalls at key boundaries in the architecture mitigates the risk of DoS att
    SV-68879r1_rule SRG-NET-000362-ALG-000126 CCI-002385 MEDIUM The ALG providing content filtering must protect against known types of Denial of Service (DoS) attacks by employing signatures. If the network does not provide safeguards against DoS attacks, network resources will be unavailable to users. Installation of content filtering gateways and application layer firewalls at key boundaries in the architecture mitigates the risk of DoS at
    SV-68881r1_rule SRG-NET-000192-ALG-000121 CCI-001094 MEDIUM The ALG providing content filtering must block outbound traffic containing known and unknown DoS attacks to protect against the use of internal information systems to launch any Denial of Service (DoS) attacks against other networks or endpoints. DoS attacks can take multiple forms but have the common objective of overloading or blocking a network or host to deny or seriously degrade performance. If the network does not provide safeguards against DoS attack, network resources will be unavailable t
    SV-68883r1_rule SRG-NET-000364-ALG-000122 CCI-002403 MEDIUM The ALG must only allow incoming communications from organization-defined authorized sources routed to organization-defined authorized destinations. Unrestricted traffic may contain malicious traffic which poses a threat to an enclave or to other connected networks. Additionally, unrestricted traffic may transit a network, which uses bandwidth and other resources. Access control policies and access c
    SV-68885r1_rule SRG-NET-000365-ALG-000123 CCI-001126 MEDIUM The ALG must fail securely in the event of an operational failure. If a boundary protection device fails in an unsecure manner (open), information external to the boundary protection device may enter, or the device may permit unauthorized information release. Secure failure ensures when a boundary control device fails,
    SV-68887r1_rule SRG-NET-000202-ALG-000124 CCI-001109 MEDIUM The ALG must deny network communications traffic by default and allow network communications traffic by exception (i.e., deny all, permit by exception). A deny-all, permit-by-exception network communications traffic policy ensures that only those connections which are essential and approved are allowed. As a managed interface, the ALG must block all inbound and outbound network communications traffic to
    SV-68889r1_rule SRG-NET-000370-ALG-000125 CCI-002400 MEDIUM The ALG must identify and log internal users associated with denied outgoing communications traffic posing a threat to external information systems. Without identifying the users who initiated the traffic, it would be difficult to identify those responsible for the denied communications. This requirement applies to those network elements that perform Data Leakage Prevention (DLP) (e.g., ALGs, proxies
    SV-68891r1_rule SRG-NET-000401-ALG-000127 CCI-001310 MEDIUM The ALG must check the validity of all data inputs except those specifically identified by the organization. Invalid user input occurs when a user inserts data or characters into an application's data entry fields and the application is unprepared to process that data. This results in unanticipated application behavior potentially leading to an application or in
    SV-68893r1_rule SRG-NET-000380-ALG-000128 CCI-002754 MEDIUM The ALG must behave in a predictable and documented manner that reflects organizational and system objectives when invalid inputs are received. A common vulnerability of network elements is unpredictable behavior when invalid inputs are received. This requirement guards against adverse or unintended system behavior caused by invalid inputs, where information system responses to the invalid input
    SV-68895r1_rule SRG-NET-000273-ALG-000129 CCI-001312 MEDIUM The ALG must generate error messages that provide the information necessary for corrective actions without revealing information that could be exploited by adversaries. Providing too much information in error messages risks compromising the data and security of the application and system. Organizations carefully consider the structure/content of error messages. The required information within error messages will vary ba
    SV-68897r1_rule SRG-NET-000402-ALG-000130 CCI-001314 MEDIUM The ALG must reveal error messages only to the ISSO, ISSM, and SCA. 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 give configuration details about the network element. Limiting access to system logs and admi
    SV-68899r1_rule SRG-NET-000251-ALG-000131 CCI-001247 MEDIUM The ALG providing content filtering must automatically update malicious code protection mechanisms. The malicious software detection functionality on network elements needs to be constantly updated in order to identify new threats as they are discovered. All malicious software detection functions must come with an update mechanism that automatically up
    SV-68901r1_rule SRG-NET-000246-ALG-000132 CCI-001240 MEDIUM The ALG providing content filtering must update malicious code protection mechanisms and signature definitions whenever new releases are available in accordance with organizational configuration management policy and procedures. Malicious code protection mechanisms include, but are not limited to, anti-virus and malware detection software. In order to minimize any potential negative impact to the organization caused by malicious code, malicious code must be identified and eradica
    SV-68903r1_rule SRG-NET-000248-ALG-000133 CCI-001242 MEDIUM The ALG providing content filtering must be configured to perform real-time scans of files from external sources at network entry/exit points as they are downloaded and prior to being opened or executed. Malicious code includes viruses, worms, Trojan horses, and Spyware. The code provides the ability for a malicious user to read from and write to files and folders on a computer's hard drive. Malicious code may also be able to run and attach programs, whic
    SV-68905r1_rule SRG-NET-000249-ALG-000134 CCI-001243 MEDIUM The ALG providing content filtering must block malicious code upon detection. Taking an appropriate action based on local organizational incident handling procedures minimizes the impact of this code on the network. This requirement is limited to ALGs web content filters and packet inspection firewalls; that perform malicious code
    SV-68907r1_rule SRG-NET-000249-ALG-000145 CCI-001243 MEDIUM The ALG providing content filtering must delete or quarantine malicious code in response to malicious code detection. Taking an appropriate action based on local organizational incident handling procedures minimizes the impact of this code on the network. The ALG must be configured to block all detected malicious code. It is sometimes acceptable/necessary to generate a
    SV-68909r1_rule SRG-NET-000249-ALG-000146 CCI-001243 MEDIUM The ALG providing content filtering must send an immediate (within seconds) alert to the system administrator, at a minimum, in response to malicious code detection. Without an alert, security personnel may be unaware of an impending failure of the audit capability; then the ability to perform forensic analysis and detect rate-based and other anomalies will be impeded. The ALG generates an immediate (within seconds)
    SV-68911r1_rule SRG-NET-000383-ALG-000135 CCI-002656 MEDIUM The ALG providing content filtering must be configured to integrate with a system-wide intrusion detection system. Without coordinated reporting between separate devices, it is not possible to identify the true scale and possible target of an attack. Integration of the ALG with a system-wide intrusion detection system supports continuous monitoring and incident respo
    SV-68913r1_rule SRG-NET-000384-ALG-000136 CCI-002683 MEDIUM The ALG providing content filtering must detect use of network services that have not been authorized or approved by the ISSM and ISSO, at a minimum. Unauthorized or unapproved network services lack organizational verification or validation and therefore may be unreliable or serve as malicious rogues for valid services. Examples of network services include service-oriented architectures (SOAs), cloud-
    SV-68915r1_rule SRG-NET-000385-ALG-000137 CCI-002684 MEDIUM The ALG providing content filtering must generate a log record when unauthorized network services are detected. Unauthorized or unapproved network services lack organizational verification or validation and therefore may be unreliable or serve as malicious rogues for valid services. Examples of network services include service-oriented architectures (SOAs), cloud-
    SV-68917r1_rule SRG-NET-000385-ALG-000138 CCI-002684 MEDIUM The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM when unauthorized network services are detected. Unauthorized or unapproved network services lack organizational verification or validation and therefore, may be unreliable or serve as malicious rogues for valid services. Automated mechanisms can be used to send automatic alerts or notifications. Such
    SV-68919r1_rule SRG-NET-000390-ALG-000139 CCI-002661 MEDIUM The ALG providing content filtering must continuously monitor inbound communications traffic crossing internal security boundaries for unusual or unauthorized activities or conditions. If inbound communications traffic is not continuously monitored, hostile activity may not be detected and prevented. Output from application and traffic monitoring serves as input to continuous monitoring and incident response programs. Internal monitori
    SV-68921r1_rule SRG-NET-000391-ALG-000140 CCI-002662 MEDIUM The ALG providing content filtering must continuously monitor outbound communications traffic crossing internal security boundaries for unusual/unauthorized activities or conditions. If outbound communications traffic is not continuously monitored, hostile activity may not be detected and prevented. Output from application and traffic monitoring serves as input to continuous monitoring and incident response programs. Internal monitor
    SV-68923r1_rule SRG-NET-000392-ALG-000141 CCI-002664 MEDIUM The ALG providing content filtering must send an alert to, at a minimum, the ISSO and ISSM when detection events occur. Without an alert, security personnel may be unaware of major detection incidents that require immediate action and this delay may result in the loss or compromise of information. Since these incidents require immediate action, these messages are assigned
    SV-68925r1_rule SRG-NET-000392-ALG-000142 CCI-002664 MEDIUM The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM when threats identified by authoritative sources (e.g., IAVMs or CTOs) are detected. Without an alert, security personnel may be unaware of major detection incidents that require immediate action and this delay may result in the loss or compromise of information. The ALG generates an alert which notifies designated personnel of the Indic
    SV-68927r1_rule SRG-NET-000392-ALG-000143 CCI-002664 MEDIUM The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM when root level intrusion events which provide unauthorized privileged access are detected. Without an alert, security personnel may be unaware of major detection incidents that require immediate action and this delay may result in the loss or compromise of information. The ALG generates an alert which notifies designated personnel of the Indic
    SV-68929r1_rule SRG-NET-000392-ALG-000147 CCI-002664 MEDIUM The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM when user level intrusions which provide non-privileged access are detected. Without an alert, security personnel may be unaware of major detection incidents that require immediate action and this delay may result in the loss or compromise of information. The ALG generates an alert which notifies designated personnel of the Indic
    SV-68931r1_rule SRG-NET-000392-ALG-000148 CCI-002664 MEDIUM The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM when denial of service incidents are detected. Without an alert, security personnel may be unaware of major detection incidents that require immediate action and this delay may result in the loss or compromise of information. The ALG generates an alert which notifies designated personnel of the Indic
    SV-68933r1_rule SRG-NET-000392-ALG-000149 CCI-002664 MEDIUM The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM when new active propagation of malware infecting DoD systems or malicious code adversely affecting the operations and/or security of DoD systems is detected. Without an alert, security personnel may be unaware of major detection incidents that require immediate action and this delay may result in the loss or compromise of information. The ALG generates an alert which notifies designated personnel of the Indic
    SV-68935r1_rule SRG-NET-000393-ALG-000144 CCI-001308 MEDIUM The ALG that implements spam protection mechanisms must be updated automatically. Originators of spam messages are constantly changing their techniques in order to defeat spam countermeasures; therefore, spam software must be constantly updated to address the changing threat. A manual update procedure is labor intensive and does not s
    SV-69007r1_rule SRG-NET-000501-ALG-000036 CCI-000172 MEDIUM The ALG must generate audit records when successful/unsuccessful attempts to delete security objects 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-69009r1_rule SRG-NET-000502-ALG-000037 CCI-000172 MEDIUM The ALG must generate audit records when successful/unsuccessful attempts to delete categories of information (e.g., classification levels) 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-69011r1_rule SRG-NET-000505-ALG-000039 CCI-000172 MEDIUM The ALG providing user access control intermediary services must generate audit records showing starting and ending time for user 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-69013r1_rule SRG-NET-000331-ALG-000041 CCI-001919 MEDIUM The ALG providing user access control intermediary services must provide the capability for authorized users to select a user session to capture or view. Without the capability to select a user session to capture or view, investigations into suspicious or harmful events would be hampered by the volume of information captured. The intent of this requirement is to ensure the capability to select specific se
    SV-69015r1_rule SRG-NET-000399-ALG-000042 CCI-001462 MEDIUM The ALG providing user access control intermediary services must provide the capability for authorized users to capture, record, and log all content related to a selected user session. Without the capability to capture, record, and log content related to a user session, investigations into suspicious user activity would be hampered. The intent of this requirement is to ensure the capability to select specific sessions to capture is ava
    SV-69017r1_rule SRG-NET-000319-ALG-000020 CCI-002347 MEDIUM To protect against data mining, the ALG providing content filtering must detect SQL injection attacks launched against data storage objects, including, at a minimum, databases, database records, and database fields. Data mining is the analysis of large quantities of data to discover patterns and is used in intelligence gathering. Failure to detect attacks launched against organizational databases may result in the compromise of information. SQL injection attacks are
    SV-69019r1_rule SRG-NET-000235-ALG-000118 CCI-001190 MEDIUM The ALG must fail to a secure state upon failure of initialization, shutdown, or abort actions. Failure to a known safe state helps prevent systems from failing to a state that may cause loss of data or unauthorized access to system resources. Network elements that fail suddenly and with no incorporated failure state planning may leave the hosting s
    SV-70443r1_rule SRG-NET-000521-ALG-000002 CCI-000060 MEDIUM The ALG providing user access control intermediary services must conceal, via the session lock, information previously visible on the display with a publicly viewable image. 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. The session lock is implemented
    SV-70445r1_rule SRG-NET-000514-ALG-000514 CCI-000057 MEDIUM The ALG providing user access control intermediary services 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-70447r1_rule SRG-NET-000515-ALG-000515 CCI-000058 MEDIUM The ALG providing user access control intermediary services must provide the capability for users to directly initiate a session lock. 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
    SV-70449r1_rule SRG-NET-000516-ALG-000516 CCI-000056 MEDIUM The ALG providing user access control intermediary services must retain the session lock until the user reestablishes access using established identification and authentication procedures. 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
    SV-70451r1_rule SRG-NET-000517-ALG-000006 CCI-002361 MEDIUM The ALG providing user access control intermediary services must automatically terminate a user session when organization-defined conditions or trigger events that require a session disconnect occur. 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-70453r1_rule SRG-NET-000518-ALG-000007 CCI-002363 MEDIUM The ALG providing user access control intermediary services must provide a logoff capability for user-initiated communications sessions. If a user cannot explicitly end a session, the session may remain open and be exploited by an attacker. However, for some types of interactive sessions including, for example, remote logon, information systems typically send logoff messages as final mess
    SV-70455r1_rule SRG-NET-000519-ALG-000008 CCI-002364 MEDIUM The ALG providing user access control intermediary services must display an explicit logoff message to users indicating the reliable termination of authenticated communications sessions. If a user cannot explicitly end a session, the session may remain open and be exploited by an attacker; this is referred to as a zombie session. Users need to be aware of whether or not the session has been terminated. Logoff messages for access, for exa
    SV-70457r1_rule SRG-NET-000062-ALG-000092 CCI-000068 MEDIUM The ALG that stores secret or private keys must use FIPS-approved key management technology and processes in the production and control of private/secret cryptographic keys. Private key data is used to prove that the entity presenting a public key certificate is the certificate's rightful owner. Compromise of private key data allows an adversary to impersonate the key holder. Private key data associated with software certif