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Check: GEN001580 M6

MACOSX 10.6: GEN001580 M6 (in version v1 r3)

Title

All run control scripts must have mode 0755 or less permissive. (Cat II impact)

Discussion

If the startup files 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 check the mode of launchctl plist files (all on one line). find /System/Library/LaunchDaemons /System/Library/LaunchAgents /Library/LaunchAgents /Library/LaunchDaemons -type f -perm +022 -exec stat -f %Lp:%N {} \; This will return the octal permissions and name of all files that are group or world writeable. If any launchctl plist file listed is world or group writeable (either or both of the 2 lowest order digits containing a 2, 3, 6, or 7), this is a finding.

Fix Text

Open a terminal session and enter the following command to set the mode of the run control script file. chmod 755 <startup file>

Additional Identifiers

Rule ID: SV-38013r1_rule

Vulnerability ID: V-906

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