| name | cis-gcp-cos-6.2.15 |
| description | Ensure all groups in /etc/passwd exist in /etc/group |
| category | cis-gcp-cos |
| version | 1.2.0 |
| author | cyberstrike-official |
| tags | ["cis","gcp","container-optimized-os","group-settings","user-accounts"] |
| cis_id | 6.2.15 |
| cis_benchmark | CIS Google Container-Optimized OS Benchmark v1.2.0 |
| tech_stack | ["gcp","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
6.2.15 Ensure all groups in /etc/passwd exist in /etc/group (Automated)
Description
Over time, system administration errors and changes can lead to groups being defined in /etc/passwd but not in /etc/group.
Rationale
Groups defined in the /etc/passwd file but not in the /etc/group file pose a threat to system security since group permissions are not properly managed.
Audit Procedure
Run the following script and verify no results are returned:
#!/bin/bash
for i in $(cut -s -d: -f4 /etc/passwd | sort -u ); do
grep -q ":$i:" /etc/group
if [ $? -ne 0 ]; then
echo "Group $i is referenced by /etc/passwd but does not exist in /etc/group"
fi
done
Expected Result
No results should be returned.
Remediation
Analyze the output of the Audit step above and perform the appropriate action to correct any discrepancies found.
Profile