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Check: GEN003790 M6

MACOSX 10.6: GEN003790 M6 (in version v1 r3)

Title

The services file must not have an extended ACL. (Cat II impact)

Discussion

The services file is critical to the proper operation of network services and must be protected from unauthorized modification. If the services file has an extended ACL, it may be possible for unauthorized users to modify the file. Unauthorized modification could result in the failure of network services.

Check Content

Open a terminal session and enter the following command to view the /etc/services file extended ACLs. ls -lL /etc/services If the permissions include a '+', the file has an extended ACL, this is a finding.

Fix Text

Open a terminal session and enter the following command to remove the extended ACLs. chmod -N /etc/services

Additional Identifiers

Rule ID: SV-38124r1_rule

Vulnerability ID: V-22428

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