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Check: GEN001361

SUSE Linux Enterprise Server v11 for System z STIG: GEN001361 (in versions v1 r12 through v1 r9)

Title

NIS/NIS+/yp command files must not have extended ACLs. (Cat II impact)

Discussion

NIS/NIS+/yp files are part of the system's identification and authentication processes and are critical to system security. ACLs on these files could result in unauthorized modification, which could compromise these processes and the system.

Check Content

Verify NIS/NIS+/yp files have no extended ACLs. # ls -lL /var/yp/* 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 file. # setfacl --remove-all /var/yp/*

Additional Identifiers

Rule ID: SV-44964r1_rule

Vulnerability ID: V-22318

Group Title: GEN001361

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