Check: AOSX-09-000030
Apple OS X 10.9 Workstation STIG:
AOSX-09-000030
(in version v1 r2)
Title
The operating system must monitor remote access methods. (Cat II impact)
Discussion
Remote access services, such as those providing remote access to network devices and information systems, increase risk and expose those systems to possible cyber attacks, so all remote access should be closely monitored and audited. Only authorized users should be permitted to remotely access DoD non-public information systems. An attacker might attempt to log in as an authorized user, through stolen credentials, unpatched exploits of the remote access service, or brute force attempts to guess a valid username and password. If a user is attempting to log in to a system from an unusual location or at an unusual time, or if there are many failed attempts, there is a possibility that the system is the target of a cyber attack. Auditing logon events mitigates this risk by recording all logon attempts, successful and unsuccessful, to the system.
Check Content
To check to make sure the audit daemon is configured to log all login events, both local and remote, run the following command: sudo grep ^flags /etc/security/audit_control The flag 'lo' should be included in the list of flags set. If it is not, 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/$/,lo/' /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-72687r1_rule
Vulnerability ID: V-58257
Group Title:
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000067 |
The information system monitors remote access methods. |
Controls
Number | Title |
---|---|
AC-17 (1) |
Automated Monitoring / Control |