blind-ssrf-chains SKILL.md skillB
blind-ssrf-chains from dreadnode/capabilities is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dreadnode/capabilities/blind-ssrf-chains@git:20260827.9e5b22dPins git:20260827.9e5b22d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dreadnode/capabilities
- Path
capabilities/web-security/skills/blind-ssrf-chains/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260827.9e5b22d, committed Aug 27, 2026
- First version recorded
- May 4, 2026
- Size
- 10,372 bytes
- Repository stars
- 22
- License
- MIT
Escalate blind SSRF to proven impact via internal service canaries, port fingerprinting, chained exploitation targeting Redis, Docker API, Jenkins, and cloud metadata, and attacker-controlled infrastructure for dangling resource claims and redirect servers. Use when blind SSRF is confirmed but you need to demonstrate CIA impact beyond 'I can reach internal hosts.'.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Blind SSRF Chains You have blind SSRF. You can hit internal IPs but get no response body. The program will reject "I can reach 127.0.0.1." You need to prove impact. ## Attacker Infrastructure for SSRF Proof When SSRF is confirmed but you need attacker-controlled infrastructure to complete the chain (claim a dangling bucket, serve redirects, host custom content for a parser), do not guess or auto-provision. Detect what cloud/hosting CLIs are on the shell (`which aws az gcloud fly netlify wrangler docker ngrok`), present the available options and what the situation requires, then use AskUserQuestion for approval and credential guidance. Do not block other testing while waiting. For the redirector and custom-content cases specifically, the built-in `wrangler_*` tools (see the `wrangler-oast` skill) deploy Cloudflare Workers as 302 redirectors or content servers when `CLOUDFLARE_API_TOKEN` / `CLOUDFLARE_ACCOUNT_ID` are set — the same approval gate applies. **Trigger signals:** - Server response contains `NoSuchBucket`, `BlobNotFound`, or similar dangling cloud resource error — claim the resource name, upload payload …
Read the whole file at its exact version.
How to install
mdr add dreadnode/capabilities/blind-ssrf-chains@sha256:053aefb78294d336The line at the top of this page pins the label git:20260827.9e5b22d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ax35vwvmfwtqjtin)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between May 4, 2026 and Aug 27, 2026, about one every 29 days. Its first recorded version is graded A and its latest B.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260827.9e5b22d latest | 2026-08-27 | 9e5b22d | 10,372 B | B | view · diff |
| git:20260701.5694282 | 2026-07-01 | 5694282 | 10,087 B | B | view · diff |
| git:20260529.8f6ea0e | 2026-05-29 | 8f6ea0e | 8,610 B | B | view · diff |
| git:20260528.f3e4348 | 2026-05-28 | f3e4348 | 8,587 B | B | view · diff |
| git:20260504.2a64374 | 2026-05-04 | 2a64374 | 3,454 B | A | view |
Audit of the latest version
- fail: No link to a raw IP address (matched: http://127.0.0.1)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10372 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
dreadnode/capabilities · 22 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ax35vwvmfwtqjtin GET https://markdownregistry.com/api/v1/resolve?ref=dreadnode/capabilities/blind-ssrf-chains GET https://markdownregistry.com/api/v1/blob/053aefb78294d336c2b05f717659f98fc64f8252159cf037461c1f012b65d699
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.