ssrf-testing SKILL.md skillB
ssrf-testing from lu1sdv/skillsmd is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lu1sdv/skillsmd/ssrf-testing@git:20260307.aadfb99Pins git:20260307.aadfb99 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lu1sdv/skillsmd
- Path
ssrf-testing/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260307.aadfb99, committed Mar 7, 2026
- Size
- 10,559 bytes
- Repository stars
- 2
- License
- none declared
Use when testing for SSRF in web applications, accessing internal services through SSRF, bypassing SSRF filters, auditing applications that fetch user-supplied URLs, or implementing SSRF prevention. Covers blind and non-blind SSRF, cloud metadata exploitation, protocol smuggling, and defense strategies.
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
# SSRF Testing & Prevention ## Overview Find, exploit, and fix Server-Side Request Forgery. SSRF tricks the server into making HTTP requests to unintended destinations -- accessing internal services, cloud metadata, or other systems that the server can reach but the attacker cannot. ``` Normal flow: User -> Server -> External API (intended) SSRF attack: User sends: url=http://169.254.169.254/latest/meta-data/ Server -> AWS Metadata Service (unintended) Server returns: IAM credentials, instance info, etc. ``` ## Quick Reference | What | Details | |------|---------| | **OWASP** | A10:2021 Server-Side Request Forgery | | **CWE** | CWE-918 | | **Severity** | Critical (CVSS 9.1) when cloud metadata or internal data exposed | | **Key tools** | Burp Suite Pro, SSRFmap, interactsh, Gopherus | | **Common params** | `url`, `uri`, `link`, `href`, `src`, `dest`, `redirect`, `callback`, `webhook`, `image_url`, `feed_url`, `proxy_url` | | **Cloud metadata IP** | `169.254.169.254` (AWS/Azure/DO), `metadata.google.internal` (GCP), `100.100.100.200` (Alibaba) | | **Blind detection** | Timing differences, OOB callbacks (Collaborator/interactsh), error message variations | …
Read the whole file at its exact version.
How to install
mdr add lu1sdv/skillsmd/ssrf-testing@sha256:ccb6c4479fcf24f2The line at the top of this page pins the label git:20260307.aadfb99, 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_uektbnox2mtq2any)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 7, 2026.
Audit of the latest version
- fail: No link to a raw IP address (matched: http://169.254.169.254)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10559 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
lu1sdv/skillsmd · 2 stars · license none declared · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uektbnox2mtq2any GET https://markdownregistry.com/api/v1/resolve?ref=lu1sdv/skillsmd/ssrf-testing GET https://markdownregistry.com/api/v1/blob/ccb6c4479fcf24f23e9a48394dfa7632f07556749dfad9141117b0c9db7ef9fd
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.