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Check: GEN001570 M6

MACOSX 10.6: GEN001570 M6 (in version v1 r3)

Title

All files and directories contained in user home directories must not have extended ACLs. (Cat II impact)

Discussion

Excessive permissions allow unauthorized access to user files.

Check Content

Open a terminal session and enter the following command. find /Users -print -exec ls -lLd \{\} \; | grep '^..........+' If files are shown with permissions that 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 <user file with extended ACL>

Additional Identifiers

Rule ID: SV-38095r1_rule

Vulnerability ID: V-22352

Group Title:

Expert Comments

Expert comments are only available to logged-in users.

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