CVE-2024-56903
📋 TL;DR
This vulnerability in Geovision GV-ASWeb allows attackers to modify POST requests to GET requests against critical account management functions. When chained with CVE-2024-56901, it enables successful CSRF attacks. Organizations using Geovision GV-ASWeb version 6.1.1.0 or earlier are affected.
💻 Affected Systems
- Geovision GV-ASWeb
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could perform unauthorized account modifications, privilege escalation, or complete system compromise through chained CSRF attacks.
Likely Case
Unauthorized account management actions such as password changes, user creation/deletion, or privilege modifications.
If Mitigated
Limited impact with proper CSRF protections and request validation in place.
🎯 Exploit Status
Requires chaining with CVE-2024-56901 for full exploitation. Attackers need to trick authenticated users into visiting malicious pages.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 6.1.1.0
Vendor Advisory: https://github.com/DRAGOWN/CVE-2024-56903
Restart Required: No
Instructions:
1. Check current GV-ASWeb version. 2. Upgrade to latest version from Geovision. 3. Verify POST requests are properly validated. 4. Implement CSRF protections.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd CSRF tokens to all POST requests and validate them server-side.
Request Method Validation
allEnforce POST method for sensitive operations and reject GET requests for these endpoints.
🧯 If You Can't Patch
- Isolate GV-ASWeb from internet access and restrict to internal network only
- Implement web application firewall rules to block suspicious request method modifications
🔍 How to Verify
Check if Vulnerable:
Test if POST requests to account management endpoints can be modified to GET requests without proper validation.Check Version:
Check GV-ASWeb version in web interface or configuration filesVerify Fix Applied:
Verify that POST requests cannot be modified to GET and that CSRF protections are properly implemented.📡 Detection & Monitoring
Log Indicators:
- Unusual GET requests to sensitive POST endpoints
- Multiple failed authentication attempts followed by account modifications
Network Indicators:
- GET requests containing POST parameters
- Requests with missing or invalid CSRF tokens
SIEM Query:
source="web_logs" AND (method="GET" AND uri CONTAINS "/account/")