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Check: GEN001374

SUSE Linux Enterprise Server v11 for System z STIG: GEN001374 (in versions v1 r12 through v1 r9)

Title

The /etc/nsswitch.conf file must not have an extended ACL. (Cat II impact)

Discussion

The nsswitch.conf file (or equivalent) configures the source of a variety of system security information including account, group, and host lookups. Malicious changes could prevent the system from functioning or compromise system security.

Check Content

Verify /etc/nsswitch.conf has no extended ACL. # ls -l /etc/nsswitch.conf 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 /etc/nsswitch.conf

Additional Identifiers

Rule ID: SV-44988r1_rule

Vulnerability ID: V-22330

Group Title: GEN001374

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