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`.
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tessl review fix ./packages/decepticon/decepticon/skills/standard/cloud/container/docker-socket-mount/SKILL.mdSecurity
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.
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.
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.
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.
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.
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.
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.
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