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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
Showing SKILL.md
Based on SOC occupation classification
| name | cis-ubuntu1604-v200-1-8-1 |
| description | Ensure GNOME Display Manager is removed |
| category | cis-storage |
| version | 2.0.0 |
| author | cyberstrike-official |
| tags | ["cis","ubuntu","linux","ubuntu-16.04","gdm","gnome","display-manager","attack-surface"] |
| cis_id | 1.8.1 |
| cis_benchmark | CIS Ubuntu Linux 16.04 LTS Benchmark v2.0.0 |
| tech_stack | ["ubuntu","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
The GNOME Display Manager (GDM) is a program that manages graphical display servers and handles graphical user logins.
If a Graphical User Interface (GUI) is not required, it should be removed to reduce the attack surface of the system.
Removing the GNOME Display manager will remove the Graphical User Interface (GUI) from the system.
Run the following command and verify gdm3 is not installed:
dpkg -s gdm3 | grep -E '(Status:|not installed)'
Expected output: dpkg-query: package 'gdm3' is not installed and no information is available
The gdm3 package should not be installed on server systems.
Run the following command to uninstall gdm3:
apt purge gdm3
Not applicable.
None.
| Controls Version | Control |
|---|---|
| v7 | 2.6 Address unapproved software |
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