The /etc/gshadow file must have mode 0400.

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000225

SV-62697r1_rule The /etc/gshadow file must have mode 0400.

Vulnerability discussion

The /etc/gshadow file is critical to system security and must be protected from unauthorized modification. The /etc/gshadow file contains a list of system groups and hashes for group passwords.

Check content

Check the mode of the /etc/gshadow file. # ls -l /etc/gshadow If the file mode is more permissive than 0400, this is a finding.

Fix text

Change the mode of the /etc/gshadow file to 0400 or less permissive. # chmod 0400 /etc/gshadow

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