| name | cis-gcp-cos-6.1.5 |
| description | Ensure permissions on /etc/passwd- are configured |
| category | cis-gcp-cos |
| version | 1.2.0 |
| author | cyberstrike-official |
| tags | ["cis","gcp","container-optimized-os","file-permissions","passwd","system-files"] |
| cis_id | 6.1.5 |
| cis_benchmark | CIS Google Container-Optimized OS Benchmark v1.2.0 |
| tech_stack | ["gcp","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
6.1.5 Ensure permissions on /etc/passwd- are configured (Automated)
Description
The /etc/passwd- file contains backup user account information.
Rationale
It is critical to ensure that the /etc/passwd- file is protected from unauthorized access. Although it is protected by default, the file permissions could be changed either inadvertently or through malicious actions.
Audit Procedure
Run the following command and verify Uid and Gid are both 0/root and Access is 644 or more restrictive:
Access: (0644/-rw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Expected Result
Uid and Gid should both be 0/root and Access should be 644 or more restrictive.
Remediation
Run the following command to set permissions on /etc/passwd-:
CIS Controls
| Controls Version | Control | IG 1 | IG 2 | IG 3 |
|---|
| v8 | 3.3 Configure Data Access Control Lists | x | x | x |
| v7 | 16.4 Encrypt or Hash all Authentication Credentials | | x | x |
Profile