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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-gcp-cos-3.3.3 |
| description | Ensure iptables is installed |
| category | cis-gcp-cos |
| version | 1.2.0 |
| author | cyberstrike-official |
| tags | ["cis","gcp","container-optimized-os","firewall","iptables","ip6tables","network-security","package-management"] |
| cis_id | 3.3.3 |
| cis_benchmark | CIS Google Container-Optimized OS Benchmark v1.2.0 |
| tech_stack | ["gcp","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
iptables allows configuration of the IPv4 and IPv6 tables in the linux kernel and the rules stored within them. Most firewall configuration utilities operate as a front end to iptables.
iptables is required for firewall management and configuration.
Run the following command and verify iptables is installed:
grep '"name": "iptables"' /etc/cos-package-info.json
"name": "iptables"
Update to an OS image that includes the iptables package.
| Controls Version | Control | IG 1 | IG 2 | IG 3 |
|---|---|---|---|---|
| v8 | 4.4 Implement and Manage a Firewall on Servers - Implement and manage a firewall on servers, where supported. Example implementations include a virtual firewall, operating system firewall, or a third-party firewall agent. | x | x | x |
| v7 | 9.4 Apply Host-based Firewalls or Port Filtering - Apply host-based firewalls or port filtering tools on end systems, with a default-deny rule that drops all traffic except those services and ports that are explicitly allowed. | x | x | x |