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docker-socket-mount

Docker / containerd socket mounted into a container → host RCE. Common in CI runners, GitOps controllers (ArgoCD, Flux), and 'Docker-in-Docker' setups. Single-command escape via `docker run --rm --privileged -v /:/host alpine chroot /host`.

65

Quality

79%

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SecuritybySnyk

Critical

Do not install without reviewing

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tessl review fix ./packages/decepticon/decepticon/skills/standard/cloud/container/docker-socket-mount/SKILL.md
SKILL.md
Quality
Evals
Security

Security

3 findings: 1 critical severity, 1 high severity, 1 medium severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.

Critical

E006: Malicious code pattern detected in skill scripts.

What this means

Detected high-risk code patterns in the skill content — including its prompts, tool definitions, and resources — such as data exfiltration, backdoors, remote code execution, credential theft, system compromise, supply chain attacks, and obfuscation techniques.

Why it was flagged

This document provides explicit, actionable instructions to escape containers to host root, create persistent backdoors (user account and SUID binary), and evade detection—demonstrating clear malicious intent and operational security guidance for abuse.

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High

W007: Insecure credential handling detected in skill instructions.

What this means

The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.

Why it was flagged

The skill includes an explicit plaintext password in a command (echo 'backdoor:plaintext' | chroot /host chpasswd), which would require the LLM to handle/output a secret verbatim.

Medium

W013: Attempt to modify system services in skill instructions.

What this means

The skill prompts the agent to compromise the security or integrity of the user’s machine by modifying system-level services or configurations, such as obtaining elevated privileges, altering startup scripts, or changing system-wide settings.

Why it was flagged

The skill contains explicit, actionable commands to escape containers via Docker/containerd sockets, obtain root on the host (chroot into /host), create a backdoor user, and modify binaries/SUID bits — all direct instructions to compromise the machine state.

Repository
PurpleAILAB/Decepticon
Audited
Security analysis
Snyk

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