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Check: GEN003410

SUSE Linux Enterprise Server v11 for System z STIG: GEN003410 (in versions v1 r12 through v1 r9)

Title

The at directory must not have an extended ACL. (Cat II impact)

Discussion

If the "at" directory has an extended ACL, unauthorized users could be allowed to view or to edit files containing sensitive information within the "at" directory. Unauthorized modifications could result in Denial of Service to authorized "at" jobs.

Check Content

Check the permissions of the directory. # ls -lLd /var/spool/at /var/spool/atjobs 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

Remove the extended ACL from the directory. # setfacl --remove-all /var/spool/at /var/spool/atjobs

Additional Identifiers

Rule ID: SV-45671r1_rule

Vulnerability ID: V-22395

Group Title: GEN003410

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