Check: AOSX-12-000120
Apple OS X 10.12 STIG:
AOSX-12-000120
(in versions v1 r6 through v1 r1)
Title
The OS X system must generate audit records for all account creations, modifications, disabling, and termination events; privileged activities or other system-level access; all kernel module load, unload, and restart actions; all program initiations; and organizationally defined events for all non-local maintenance and diagnostic sessions. (Cat II impact)
Discussion
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 records can be generated from various components within the information system (e.g., module or policy filter). Satisfies: SRG-OS-000004-GPOS-00004, SRG-OS-000239-GPOS-00089, SRG-OS-000240-GPOS-00090, SRG-OS-000241-GPOS-00091, SRG-OS-000327-GPOS-00127, SRG-OS-000392-GPOS-00172, SRG-OS-000471-GPOS-00215, SRG-OS-000471-GPOS-00216, SRG-OS-000476-GPOS-00221, SRG-OS-000477-GPOS-00222
Check Content
To view the currently configured flags for the audit daemon, run the following command: /usr/bin/sudo /usr/bin/grep ^flags /etc/security/audit_control Administrative and Privileged access, including administrative use of the command line tools "kextload" and "kextunload" and changes to configuration settings are logged by way of the "ad" flag. If "ad" is not listed in the result of the check, this is a finding.
Fix Text
To ensure the appropriate flags are enabled for auditing, run the following command: /usr/bin/sudo /usr/bin/sed -i.bak '/^flags/ s/$/,ad/' /etc/security/audit_control; /usr/bin/sudo /usr/sbin/audit -s A text editor may also be used to implement the required updates to the "/etc/security/audit_control" file.
Additional Identifiers
Rule ID: SV-90673r1_rule
Vulnerability ID: V-75985
Group Title: SRG-OS-000004-GPOS-00004
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000018 |
The information system automatically audits account creation actions. |
CCI-000172 |
The information system generates audit records for the events defined in AU-2 d. with the content defined in AU-3. |
CCI-001403 |
The information system automatically audits account modification actions. |
CCI-001404 |
The information system automatically audits account disabling actions. |
CCI-001405 |
The information system automatically audits account removal actions. |
CCI-002234 |
The information system audits the execution of privileged functions. |
CCI-002884 |
The organization audits nonlocal maintenance and diagnostic sessions^ organization-defined audit events. |