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ssrf-server-side-request-forgery

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SSRF playbook. Use when the server fetches URLs, resolves hostnames, imports remote content, or can be driven toward internal networks, cloud metadata, or secondary protocols.

knowledge/hack-skills/skills/ssrf-server-side-request-forgery/SKILL.md

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# SKILL: Server-Side Request Forgery (SSRF) — Expert Attack Playbook

> **AI LOAD INSTRUCTION**: Expert SSRF techniques. Covers URL filter bypass, cloud metadata endpoints, protocol exploitation, blind SSRF detection, and chaining to RCE. Base models know basic 169.254.169.254 — this file covers what they miss. For real-world CVE chains, DNS Rebinding deep dives, K8s SSRF, and SSRF → Redis → RCE full exploitation, load the companion [SCENARIOS.md](./SCENARIOS.md).

## 0. QUICK START

### Extended Scenarios

Also load [SCENARIOS.md](./SCENARIOS.md) when you need:
- WebLogic SSRF (CVE-2014-4210) — `uddiexplorer/SearchPublicRegistries.jsp` + `operator` parameter + `%0D%0A` CRLF to inject Redis commands
- SSRF → internal Redis → write crontab reverse shell complete payload chain
- DNS Rebinding deep dive — TTL=0 trick, initial-legit→second-internal resolution, `rbndr.us` service
- Kubernetes SSRF (CVE-2020-8555) and bypass (CVE-2020-8562) via DNS rebinding
- SSRF through PDF/screenshot generators — `<iframe>` and `<img>` in HTML-to-PDF