I - Mission Critical Classified
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000358-AAA-000280
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to send audit records to a centralized audit server.
<VulnDiscussion>Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common...Rule Medium Severity -
SRG-APP-000108-AAA-000290
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to alert the SA and ISSO when any audit processing failure occurs.
<VulnDiscussion>It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required....Rule Medium Severity -
SRG-APP-000109-AAA-000300
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to generate audit records overwriting the oldest audit records in a first-in-first-out manner.
<VulnDiscussion>It is critical that when AAA Services are at risk of failing to process audit logs as required, they take action to mitigate ...Rule Medium Severity -
SRG-APP-000109-AAA-000310
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to queue audit records locally until communication is restored when any audit processing failure occurs.
<VulnDiscussion>It is critical that when AAA Services are at risk of failing to process audit logs as required, it take action to mitigate th...Rule Medium Severity -
SRG-APP-000116-AAA-000320
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to use internal system clocks to generate time stamps for audit records.
<VulnDiscussion>Without an internal clock used as the reference for the time stored on each event to provide a trusted common reference for t...Rule Medium Severity -
SRG-APP-000375-AAA-000330
<GroupDescription></GroupDescription>Group -
AAA Services must be configured with a minimum granularity of one second to record time stamps for audit records.
<VulnDiscussion>Without sufficient granularity of time stamps, it is not possible to adequately determine the chronological order of records....Rule Medium Severity -
SRG-APP-000374-AAA-000340
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to use or map to Coordinated Universal Time (UTC) to record time stamps for audit records.
<VulnDiscussion>If time stamps are not consistently applied and there is no common time reference, it is difficult to perform forensic analys...Rule Medium Severity -
SRG-APP-000516-AAA-000350
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to use at least two NTP servers to synchronize time.
<VulnDiscussion>Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...Rule Low Severity -
SRG-APP-000516-AAA-000360
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to authenticate all NTP messages received from NTP servers and peers.
<VulnDiscussion>Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...Rule Medium Severity -
SRG-APP-000516-AAA-000370
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to use their loopback or OOB management interface address as the source address when originating NTP traffic.
<VulnDiscussion>Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the cor...Rule Low Severity -
SRG-APP-000089-AAA-000380
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to audit each authentication and authorization transaction.
<VulnDiscussion>Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events r...Rule Medium Severity -
SRG-APP-000148-AAA-000390
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to uniquely identify and authenticate organizational users.
<VulnDiscussion>To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to pre...Rule High Severity -
SRG-APP-000149-AAA-000400
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to require multifactor authentication using Personal Identity Verification (PIV) credentials for authenticating privileged user accounts.
<VulnDiscussion>Without the use of multifactor authentication, the ease of access to privileged functions is greatly increased. Multifactor...Rule Medium Severity -
SRG-APP-000150-AAA-000410
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to require multifactor authentication using Common Access Card (CAC) Personal Identity Verification (PIV) credentials for authenticating non-privileged user accounts.
<VulnDiscussion>To assure accountability and prevent unauthenticated access, non-privileged users must utilize multifactor authentication to ...Rule Medium Severity -
SRG-APP-000158-AAA-000420
<GroupDescription></GroupDescription>Group -
AAA Services used for 802.1x must be configured to uniquely identify network endpoints (supplicants) before the authenticator establishes any connection.
<VulnDiscussion>Without identifying devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. For...Rule Medium Severity -
SRG-APP-000394-AAA-000430
<GroupDescription></GroupDescription>Group -
AAA Services used for 802.1x must be configured to authenticate network endpoint devices (supplicants) before the authenticator establishes any connection.
<VulnDiscussion>Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. ...Rule Medium Severity -
SRG-APP-000516-AAA-000440
<GroupDescription></GroupDescription>Group -
AAA Services used for 802.1x must be configured to use secure Extensible Authentication Protocol (EAP), such as EAP-TLS, EAP-TTLS, and PEAP.
<VulnDiscussion>Additional new EAP methods/types are still being proposed. However, the three being considered secure are EAP-TLS, EAP-TTLS, ...Rule Medium Severity -
SRG-APP-000164-AAA-000450
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to enforce a minimum 15-character password length.
<VulnDiscussion>Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...Rule Medium Severity -
SRG-APP-000166-AAA-000460
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to enforce password complexity by requiring that at least one upper-case character be used.
<VulnDiscussion>Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...Rule Medium Severity -
SRG-APP-000167-AAA-000470
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to enforce password complexity by requiring that at least one lower-case character be used.
<VulnDiscussion>Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...Rule Medium Severity -
SRG-APP-000168-AAA-000480
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to enforce password complexity by requiring that at least one numeric character be used.
<VulnDiscussion>Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...Rule Medium Severity -
SRG-APP-000169-AAA-000490
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to enforce password complexity by requiring that at least one special character be used.
<VulnDiscussion>Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...Rule Medium Severity -
SRG-APP-000170-AAA-000500
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to require the change of at least eight of the total number of characters when passwords are changed.
<VulnDiscussion>Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute...Rule Medium Severity -
SRG-APP-000172-AAA-000520
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to encrypt transmitted credentials using a FIPS-validated cryptographic module.
<VulnDiscussion>Passwords need to be protected at all times and encryption is the standard method for protecting passwords. If passwords are ...Rule High Severity -
SRG-APP-000173-AAA-000530
<GroupDescription></GroupDescription>Group -
AAA Services must be configured to enforce 24 hours as the minimum password lifetime.
<VulnDiscussion>Enforcing a minimum password lifetime helps prevent repeated password changes to defeat the password reuse or history enforce...Rule Medium Severity
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