V-22365

Discussion

If shell files are group-owned by users other than root or a system group, they could be modified by intruders or malicious users to perform unauthorized actions.

Check Content

If /etc/shells exists, check the group ownership of each shell referenced.

Procedure:
# cat /etc/shells | xargs -n1 ls -l

Otherwise, check any shells found on the system.
Procedure:
# find / -name "*sh" | xargs -n1 ls -l

If a shell is not group-owned by root, bin, sys, or system, this is a finding.