unboundcompute/security-agent-skills · skills/exploiting-ssrf-to-cloud-metadata/SKILL.md

exploiting-ssrf-to-cloud-metadata skillA

exploiting-ssrf-to-cloud-metadata is agent-read markdown (skill) from unboundcompute/security-agent-skills: Adjudicate whether a server-side request-forgery primitive actually reaches high-value internal targets, especially a cloud instance metadata endpoint that hands out credentials. Covers proving the fetch is attacker-steered, reaching link-local and internal addresses, defeating allowlist and parser-based filters through DNS rebinding and URL confusion, retrieving instance credentials, and blind out-of-band confirmation. Use when a feature fetches a URL, host, or address the user can influence, o.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add unboundcompute/security-agent-skills/exploiting-ssrf-to-cloud-metadata@git:20260816.e670f56
Exact content
mdr add unboundcompute/security-agent-skills/exploiting-ssrf-to-cloud-metadata@sha256:f0631b4a006d9612

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_lrignopzf4rga7ie.svg)](https://markdownregistry.com/a/art_lrignopzf4rga7ie)

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Versions

versioncommittedcommitsizeaudit
git:20260816.e670f56 latest2026-08-16 e670f56 7,149 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (7149 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 link to a raw IP address
  • pass: No script tag

Source

GitHub

unboundcompute/security-agent-skills · 5 stars · license MIT · pushed 2026-09-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_lrignopzf4rga7ie
GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/exploiting-ssrf-to-cloud-metadata
GET https://markdownregistry.com/api/v1/blob/f0631b4a006d9612cc1b462a44f6e1ca64a72b60438e32459251c39cc27c67b9

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.