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npx skills add https://github.com/CyberStrikeus/CyberStrike --skill cis-ubuntu1604-v200-5-5-1-3يبقى الأمر في سطر واحد. مرّر أفقيًا لمراجعته كاملًا قبل النسخ.
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عرض SKILL.md
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-ubuntu1604-v200-5-5-1-3 |
| description | Ensure password expiration warning days is 7 or more |
| category | cis-iam |
| version | 2.0.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu","linux","ubuntu-16.04","authentication","pam"] |
| cis_id | 5.5.1.3 |
| cis_benchmark | CIS Ubuntu Linux 16.04 LTS Benchmark v2.0.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
Profile Applicability:
Assessment Status: Automated
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.
Run the following command and verify PASS_WARN_AGE conforms to site policy (No less than 7 days):
grep PASS_WARN_AGE /etc/login.defs
Expected output:
PASS_WARN_AGE 7
Verify all users with a password have their number of days of warning before password expires set to 7 or more. Run the following command and Review list of users and PASS_WARN_AGE to verify that all users' PASS_WARN_AGE conforms to site policy (No less than 7 days):
awk -F: '(/^[^:]+:[^!*]/ && $6<7){print $1 " " $6}' /etc/shadow
Expected Result:
No <user>:<PASS_WARN_AGE> should be returned.
Set the PASS_WARN_AGE parameter to 7 in /etc/login.defs:
PASS_WARN_AGE 7
Modify user parameters for all users with a password set to match:
chage --warndays 7 <user>
PASS_WARN_AGE 7
None
| Controls Version | Control |
|---|---|
| v7 | 4.4 Use Unique Passwords - Where multi-factor authentication is not supported (such as local administrator, root, or service accounts), accounts will use passwords that are unique to that system. |