RHEL-09-232075 RHEL 9 /etc/passwd file must have mode 0644 or less permissive to prevent unauthorized access.
DISA STIG library V2R10
All changes in this version
All changes in this version
Maps to CM-6 via CCI-000366
Title
RHEL 9 /etc/passwd file must have mode 0644 or less permissive to prevent unauthorized access.
Control
Verify that the "/etc/passwd" file has mode "0644" or less permissive with the following command: $ sudo stat -c "%a %n" /etc/passwd 644 /etc/passwd If a value of "0644" or less permissive is not returned, this is a finding.
Discussion
If the "/etc/passwd" file is writable by a group-owner or the world the risk of its compromise is increased. The file contains the list of accounts on the system and associated information, and protection of this file is critical for system security.
Related controls
CCI-000366
Fix
Change the mode of the file "/etc/passwd" to "0644" by running the following command: $ sudo chmod 0644 /etc/passwd