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In modern web applications, authorization often relies on multiple custom headers, such as X-User-ID, X-OrgID, and X-Account. Manually testing combinations of these headers for Insecure Direct Object References (IDOR) can be tedious. The Header-Fusion Burp Suite extension automates this process, streamlining security assessments.
- Medium Header-Fusion: Automating IDOR Detection
- GitHub Repository: Header-Fusion Tool
You Should Know:
1. How Header-Fusion Works
The extension iterates through possible header combinations, testing for IDOR vulnerabilities by manipulating:
– `X-User-ID`
– `X-Session-ID`
– `X-Account-Number`
– Custom headers defined by the tester
2. Installation & Setup
1. Download the extension from GitHub.
2. Load it into Burp Suite:
- Open Burp → Extender → Add → Select the `.jar` file.
3. Configure target headers in the Header-Fusion tab.
3. Practical Commands & Code Snippets
Burp Suite API Integration (Python)
from burp import IBurpExtender
from burp import IHttpListener
class BurpExtender(IBurpExtender, IHttpListener):
def registerExtenderCallbacks(self, callbacks):
self._callbacks = callbacks
self._helpers = callbacks.getHelpers()
callbacks.setExtensionName("Header-Fusion Helper")
callbacks.registerHttpListener(self)
def processHttpMessage(self, tool, isRequest, messageInfo):
if isRequest:
request = messageInfo.getRequest()
analyzed = self._helpers.analyzeRequest(request)
headers = analyzed.getHeaders()
Modify headers for IDOR testing
new_headers = headers + ["X-User-ID: 1001", "X-OrgID: 1337"]
modified_request = self._helpers.buildHttpMessage(new_headers, self._helpers.getRequestParameters(request))
messageInfo.setRequest(modified_request)
Linux Command for Log Analysis
If logs are stored on a server, use:
grep -E "X-User-ID|X-Account" /var/log/nginx/access.log | awk '{print $1, $7}'
Windows PowerShell for Header Enumeration
Invoke-WebRequest -Uri "https://target.com/api" -Headers @{"X-User-ID"="123"; "X-OrgID"="456"}
4. Manual Testing Workflow
1. Intercept a request in Burp Proxy.
2. Use Header-Fusion to auto-generate header permutations.
- Review responses for unauthorized access (HTTP 200 on restricted resources).
What Undercode Say
Automating IDOR testing with Header-Fusion significantly reduces manual effort. However, always:
– Verify false positives manually.
– Combine with other Burp tools (Scanner, Intruder).
– Use Linux commands (curl, jq) for quick API tests:
curl -H "X-User-ID: 1001" https://api.example.com/data | jq .
– For Windows, leverage `certutil` for encoded payloads:
certutil -encode payload.b64 decoded_payload
Expected Output: A streamlined IDOR detection process with reduced false negatives and enhanced security coverage.
References:
Reported By: Bineeg Header – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
