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macOS post-exploitation for credential harvesting, DTrace monitoring, TCC bypass, and stealth operations via native tools
Windows userland post-exploitation for credential harvesting, monitoring, AMSI/ETW bypass, and stealth operations
Kubernetes post-exploitation for container escape, secret extraction, RBAC abuse, and cluster persistence
| name | cis-ubuntu1204-v110-10-1-3 |
| description | Set Password Expiring Warning Days |
| category | cis-os-hardening |
| version | 1.1.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu",12.04,"linux","password","warning","login-defs","authentication"] |
| cis_id | 10.1.3 |
| cis_benchmark | CIS Ubuntu 12.04 LTS Server Benchmark v1.1.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
The PASS_WARN_AGE parameter in /etc/login.defs allows an administrator to notify users that their password will expire in a defined number of days. It is recommended that the PASS_WARN_AGE parameter be set to 7 or more days.
Providing an advance warning that a password will be expiring gives users time to think of a secure password. Users caught unaware may choose a simple password or write it down where it may be discovered.
grep PASS_WARN_AGE /etc/login.defs
# Expected output: PASS_WARN_AGE 7
chage --list <user>
# Verify: Number of days of warning before password expires: 7
PASS_WARN_AGE is set to 7 or more in /etc/login.defs, and all active users have a password warning age of 7 days or more.
Set the PASS_WARN_AGE parameter to 7 in /etc/login.defs:
# Edit /etc/login.defs and set:
PASS_WARN_AGE 7
# Modify active user parameters to match:
chage --warndays 7 <user>
PASS_WARN_AGE 7
Level 1 - Scored