Individual skill
pentesting-docker
Testing the Docker Engine remote API (default 2375/TCP plaintext, 2376/TCP TLS) for unauthenticated access leading to instant host takeover by mounting the host filesystem into a privileged container, plus secret/credential extraction and container-escape pivoting during authorized engagements.
internal/tools/skills/data/network-services-pentesting/pentesting-docker/SKILL.md
Source commit d42f381ad34843e71a42658e5c57290c713e85af
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- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
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- Repository last updated
- Nov 8, 2026
- License
- Apache-2.0
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- cybersecurity Repository topic
- security Repository topic
- bug-bounty Repository topic
- automation Repository topic
- autonomous-pentesting Repository topic
- ai-agent Repository topic
- ai-security Repository topic
- ethical-hacking Repository topic
- golang Repository topic
- penetration-testing Repository topic
- penetration-testing Declared skill tag
- network-services Declared skill tag
- docker Declared skill tag
- devops Derived category
- testing Derived category
- devops-containers Derived category
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# Pentesting Docker Engine API (port 2375)
## When to Use
- Default port `2375/tcp` (plaintext remote API) and `2376/tcp` (TLS endpoint). The API is **unauthenticated by default** when enabled over TCP.
- When `nmap` shows `2375/tcp open docker`, or you find a `DOCKER_HOST` / exposed `/var/run/docker.sock` proxied to the network.
- Exposed Docker API = effectively root on the host: an attacker can mount `/` into a container and read/write any host file.
## Quick Enumeration
```bash
# Version via curl or the docker client
curl -s http://open.docker.socket:2375/version | jq
docker -H open.docker.socket:2375 version
docker -H open.docker.socket:2375 info
