hunt-cicd

> **⚠️ AUTHORIZED USE ONLY**

> This skill is for educational purposes or authorized security assessments only.

> You must have explicit, written permission from the system owner before using this tool.

> Misuse of this tool is illegal and strictly prohibited.

> **Mandatory confirmation gate**

> Before running any command that probes, exploits, changes, persists on, extracts data from, or attempts credential access against a target:

> 1. Ask the user to state the exact target URL, IP, account, or resource.

> 2. Ask the user to confirm written authorization and the permitted scope.

> 3. Show the exact command(s) and explain their expected effect.

> 4. Wait for explicit confirmation in the current conversation.

>

> Without that confirmation, remain read-only and provide defensive guidance only. Prefer a sandbox, disposable VM, or controlled lab.

# HUNT-CICD — CI/CD Pipeline Security

Crown Jewel Targets

Jenkins `/script` console reachable = immediate RCE. A GitHub Actions `pull_request_target` (or `workflow_run`) workflow that checks out the **PR head ref** and references untrusted `${{ github.event.* }}` in a shell `run:` = "Pwnrequest" → secret exfil from a fork PR with zero approval.

**Highest-value findings:**

- **Jenkins Script Console** — Groovy execution → full RCE → dump the credential store

- **Jenkins CLI file read (CVE-2024-23897)** — pre-auth `@/etc/passwd` arg expansion → read `secret.key`/`credentials.xml` → forge admin → RCE

- **GitHub Actions `pull_request_target` injection (Pwnrequest)** — fork PR controls `${{ }}` inside a privileged shell step → exfil `GITHUB_TOKEN` (often `contents:write`) and org secrets

- **Self-hosted runner poisoning** — non-ephemeral runner on a public repo executes a fork PR's build → attacker code runs on the runner host → persistence + secret theft

- **OIDC trust-policy abuse** — over-broad `sub` claim wildcard in an AWS IAM role trust policy → any workflow in the org assumes a privileged cloud role

- **Terraform state leakage** — `*.tfstate` in public S3/GCS/Blob → plaintext infra creds, DB passwords, private keys

- **Runner token / artifact / log leakage** — register attacker runner, or harvest secrets printed before `::add-mask::`

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"It-Didn't-Happen-Without-Proof" Gate (Read First)

CI/CD findings are over-reported because dashboards *look* exploitable. Before claiming anything:

1. **A login page is not an RCE.** A reachable `/script` URL that returns a Jenkins login or `403` is **not** an unauthenticated script console. Only an actual `scriptText` POST returning your command's output counts.

2. **A `pull_request_target` workflow is not automatically injectable.** It is only exploitable if untrusted data flows into an execution sink. Confirm the data flow (see FP section) before you ever open a PR.

3. **Blind injection requires OOB.** If the vulnerable step has no output you can read, you MUST confirm via Burp Collaborator / interactsh — a unique per-sink subdomain that the runner calls out to. A workflow that "ran green" is not proof your code executed.

4. **A `.tfstate` HTTP 200 is not cred exposure until you parse it.** Diff against a baseline (see FP section) — many `tfstate` files contain only resource IDs and outputs, no secrets.

---

Phase 1 — Jenkins: Detection, Script Console, CVE-2024-23897

# Fingerprint — the X-Jenkins header leaks the exact version (drives CVE selection)
curl -sI "https://$TARGET/" | grep -iE "x-jenkins|x-hudson"
curl -sI "https://$TARGET/login" | grep -i "x-jenkins-session"
for p in /script /jenkins/script /ci/script /scriptText /jenkins/scriptText; do
  code=$(curl -s -o /dev/null -w "%{http_code}" "https://$TARGET$p")
  echo "$p -> $code"   # 200 on /script == anon script console; 403/401 == auth required (NOT a finding alone)
done

**Unauthenticated script console → RCE (only if the POST returns output):**

# This must return uid=...(jenkins). If it returns the Jenkins login HTML or a
# Crowd/SSO error page, th