The /etc/group file must not have an extended ACL.

From SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

Part of GEN001394

Associated with: CCI-000225

SV-44999r1_rule The /etc/group file must not have an extended ACL.

Vulnerability discussion

The /etc/group file is critical to system security and must be protected from unauthorized modification. The group file contains a list of system groups and associated information.

Check content

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

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