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All GIDs referenced in the /etc/passwd file must be defined in the /etc/group file.


Overview

Finding ID Version Rule ID IA Controls Severity
V-781 GEN000380 SV-27072r1_rule ECSC-1 Low
Description
If a user is assigned the GID of a group not existing on the system, and a group with the GID is subsequently created, the user may have unintended rights to the group.
STIG Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide 2013-04-10

Details

Check Text ( C-27989r1_chk )
Perform the following to ensure there are no GIDs referenced in /etc/passwd not defined in /etc/group:
# pwck -r
If GIDs referenced in /etc/passwd are not defined in /etc/group are returned, this is a finding.
Fix Text (F-935r3_fix)
Add a group to the system for each GID referenced without a corresponding group.