Check: AOSX-09-000200
Apple OS X 10.9 Workstation STIG:
AOSX-09-000200
(in version v1 r2)
Title
The operating system must generate audit records when successful/unsuccessful logon attempts occur. (Cat II impact)
Discussion
An attacker might attempt to log in as an authorized user, through stolen credentials, unpatched exploits, or brute force attempts to guess a valid username and password. If a user is attempting to log in to a system at an unusual time, or if there are many failed attempts, there is a possibility that the system is the target of an attack. Auditing logon events mitigates this risk by recording all logon attempts, successful and unsuccessful, to the system.
Check Content
In order to view the currently configured flags for the audit daemon, run the following command: sudo grep ^flags /etc/security/audit_control Logon events are logged by way of the 'aa' flag. If 'aa' is not listed in the result of the check, this is a finding.
Fix Text
To make sure the appropriate flags are enabled for auditing, run the following command: sudo sed -i.bak '/^flags/ s/$/,aa/' /etc/security/audit_control; sudo audit -s A text editor may also be used to implement the required update to the /etc/security/audit_control file.
Additional Identifiers
Rule ID: SV-72743r1_rule
Vulnerability ID: V-58313
Group Title:
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000172 |
The information system generates audit records for the events defined in AU-2 d. with the content defined in AU-3. |
Controls
Number | Title |
---|---|
AU-12 |
Audit Generation |