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Check: GEN001590 M6

MACOSX 10.6: GEN001590 M6 (in version v1 r3)

Title

Launch control scripts must not have extended ACLs. (Cat II impact)

Discussion

If the launch control scripts are writable by other users, they could modify to insert malicious commands into the startup files.

Check Content

Open a terminal session and enter the following command to verify the launch control scripts have no extended ACLs. ls -lL /System/Library/LaunchDaemons /System/Library/LaunchAgents /Library/LaunchDaemons /Library/LaunchAgents If the permissions include a '+', the file has an extended ACL. If the file has an extended ACL and it has not been documented with the IAO, this is a finding.

Fix Text

Open a terminal session and enter the following command to remove the extended ACLs. chmod -N <launch control script with extended ACL>

Additional Identifiers

Rule ID: SV-38096r1_rule

Vulnerability ID: V-22353

Group Title:

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-000225	The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-6	Least Privilege