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Showing 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
Based on SOC occupation classification
| name | cis-gcp-cos-5.1.11 |
| description | Ensure SSH PermitEmptyPasswords is disabled |
| category | cis-gcp-cos |
| version | 1.2.0 |
| author | cyberstrike-official |
| tags | ["cis","gcp","container-optimized-os","ssh","sshd","sshd-config","authentication"] |
| cis_id | 5.1.11 |
| cis_benchmark | CIS Google Container-Optimized OS Benchmark v1.2.0 |
| tech_stack | ["gcp","linux"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
The PermitEmptyPasswords parameter specifies if the SSH server allows login to accounts with empty password strings.
Disallowing remote shell access to accounts that have an empty password reduces the probability of unauthorized access to the system.
Run the following command and verify that output matches:
# sshd -T | grep permitemptypasswords
PermitEmptyPasswords no
Output should show PermitEmptyPasswords no.
Edit the /etc/ssh/sshd_config file to set the parameter as follows:
PermitEmptyPasswords no
PermitEmptyPasswords no
| Controls Version | Control | IG 1 | IG 2 | IG 3 |
|---|---|---|---|---|
| v8 | 6.3 Require MFA for Externally-Exposed Applications | x | x | |
| v7 | 16.3 Require Multi-factor Authentication | x | x |