Individual skill
performing-blind-ssrf-exploitation
Detect and exploit blind Server-Side Request Forgery vulnerabilities using out-of-band techniques, DNS interactions, and timing analysis to access internal services and cloud metadata endpoints.
internal/tools/skills/data/web-application-security/performing-blind-ssrf-exploitation/SKILL.md
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- Last checked
- Nov 9, 2026
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- cybersecurity Repository topic
- security Repository topic
- bug-bounty Repository topic
- automation Repository topic
- autonomous-pentesting Repository topic
- ai-agent Repository topic
- ai-security Repository topic
- ethical-hacking Repository topic
- golang Repository topic
- penetration-testing Repository topic
- blind-ssrf Declared skill tag
- ssrf Declared skill tag
- out-of-band Declared skill tag
- burp-collaborator Declared skill tag
- cloud-metadata Declared skill tag
- internal-network Declared skill tag
- oob-detection Declared skill tag
- engineering Derived category
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# Performing Blind SSRF Exploitation
## When to Use
- When testing URL/webhook input parameters where server-side responses are not reflected
- During assessment of applications that fetch external resources (avatars, previews, imports)
- When testing PDF generators, image processors, or document converters for SSRF
- During cloud security assessments to detect metadata endpoint access
- When evaluating webhook functionality and URL validation implementations
## How to CONFIRM a Hit (avoid false negatives)
Blind SSRF returns no reflected response, so confirmation rests **entirely on out-of-band (OOB) signals** — never infer success or failure from the HTTP status code alone:
- **Unique-subdomain DNS hit:** embed a per-test subdomain (`<test-id>.<your-id>.oast.fun`) so each payload is attributable; an inbound **DNS lookup** confirms the server resolved your host even when outbound HTTP is firewalled.
- **HTTP/FTP callback:** an inbound request landing on your `interactsh`/Collaborator/webhook.site listener proves full server-side egress.