Rule ID
SV-215246r1013689_rule
Version
V3R2
Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which AIX will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful login attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logins from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. Satisfies: SRG-OS-000062-GPOS-00031, SRG-OS-000004-GPOS-00004, SRG-OS-000051-GPOS-00024, SRG-OS-000064-GPOS-00033, SRG-OS-000239-GPOS-00089, SRG-OS-000240-GPOS-00090, SRG-OS-000241-GPOS-00091, SRG-OS-000277-GPOS-00107, SRG-OS-000303-GPOS-00120, SRG-OS-000304-GPOS-00121, SRG-OS-000327-GPOS-00127, SRG-OS-000327-GPOS-00127, SRG-OS-000364-GPOS-00151, SRG-OS-000392-GPOS-00172, SRG-OS-000458-GPOS-00203, SRG-OS-000461-GPOS-00205, SRG-OS-000462-GPOS-00206, SRG-OS-000463-GPOS-00207, SRG-OS-000465-GPOS-00209, SRG-OS-000466-GPOS-00210, SRG-OS-000467-GPOS-00211, SRG-OS-000468-GPOS-00212, SRG-OS-000470-GPOS-00214, SRG-OS-000471-GPOS-00215, SRG-OS-000471-GPOS-00216, SRG-OS-000472-GPOS-00217, SRG-OS-000473-GPOS-00218, SRG-OS-000474-GPOS-00219, SRG-OS-000475-GPOS-00220, SRG-OS-000476-GPOS-00221, SRG-OS-000477-GPOS-00222
Ensure that auditing is properly configured. Run the "stig_audit_check.sh" script. If any results are returned from the script, this is a finding. Verify that the file "/etc/security/audit/objects" includes the following objects: /etc/security/environ: w = "S_ENVIRON_WRITE" /etc/security/group: w = "S_GROUP_WRITE" /etc/group: w = "S_GROUP_WRITE" /etc/security/limits: w = "S_LIMITS_WRITE" /etc/security/login.cfg: w = "S_LOGIN_WRITE" /etc/security/passwd: r = "S_PASSWD_READ" w = "S_PASSWD_WRITE" /etc/security/user: w = "S_USER_WRITE" /etc/security/audit/config: w = "AUD_CONFIG_WR" If any of the objects listed above are missing from "/etc/security/audit/objects", this is a finding.
Use the "stig_audit_config.txt" file to configure the AIX audit process.
Edit the /etc/security/audit/objects file and add or update the following lines to the listed values:
/etc/security/environ:
w = "S_ENVIRON_WRITE"
/etc/security/group:
w = "S_GROUP_WRITE"
/etc/group:
w = "S_GROUP_WRITE"
/etc/security/limits:
w = "S_LIMITS_WRITE"
/etc/security/login.cfg:
w = "S_LOGIN_WRITE"
/etc/security/passwd:
r = "S_PASSWD_READ"
w = "S_PASSWD_WRITE"
/etc/security/user:
w = "S_USER_WRITE"
/etc/security/audit/config:
w = "AUD_CONFIG_WR"
Restart the audit process:
# /usr/sbin/audit shutdown
# /usr/sbin/audit start
Note: There are multiple default "classes" defined in the "/etc/security/audit/config" file. The only audit class that is required by this document is the "stig_aud_class". All other defined classes can be removed at the discretion of the organization.