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Check: GEN001140 M6

MACOSX 10.6: GEN001140 M6 (in version v1 r3)

Title

System files and directories must not have uneven access permissions. (Cat II impact)

Discussion

Discretionary access control is undermined if users, other than a file owner, have greater access permissions to system files and directories than the owner.

Check Content

Open a terminal session and use the following command to verify the system directories do not have uneven file permissions. ls -lL /etc /bin /usr/bin /sbin /usr/sbin If any directories listed contain uneven file permissions, this is a finding.

Fix Text

Use the "chmod" command to set the mode of files with uneven permissions so the owners do not have less permission than group or world users.

Additional Identifiers

Rule ID: SV-37853r1_rule

Vulnerability ID: V-784

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