CVE-2024-46310
📋 TL;DR
This vulnerability allows unauthenticated attackers to read and modify arbitrary user data in Cfx.re FXServer versions v9601 and earlier. Attackers can exploit an exposed API endpoint to access sensitive information without authentication. All systems running vulnerable versions of FXServer are affected.
💻 Affected Systems
- Cfx.re FXServer
⚠️ 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
Complete compromise of all user data including credentials, personal information, and administrative access leading to full system takeover.
Likely Case
Unauthorized access to sensitive user data, potential data theft, and manipulation of user accounts.
If Mitigated
Limited impact if proper network segmentation and authentication controls are implemented.
🎯 Exploit Status
Public proof-of-concept available on GitHub demonstrates exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v9602 or later
Vendor Advisory: http://cfxre.com
Restart Required: Yes
Instructions:
1. Download latest FXServer version from official source. 2. Stop the FXServer service. 3. Replace existing installation with patched version. 4. Restart the FXServer service.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict access to the vulnerable API endpoint using firewall rules.
iptables -A INPUT -p tcp --dport [FXSERVER_PORT] -s [TRUSTED_IPS] -j ACCEPT
iptables -A INPUT -p tcp --dport [FXSERVER_PORT] -j DROP
Reverse Proxy Authentication
allImplement authentication layer via reverse proxy before the vulnerable endpoint.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate FXServer from untrusted networks
- Deploy web application firewall (WAF) with rules to block unauthorized API access
🔍 How to Verify
Check if Vulnerable:
Check FXServer version via server console or configuration files. If version is v9601 or earlier, system is vulnerable.Check Version:
Check server startup logs or run 'cat server.cfg' for version informationVerify Fix Applied:
Verify version is v9602 or later and test API endpoint access requires authentication.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated API requests to user data endpoints
- Unusual data access patterns from external IPs
Network Indicators:
- HTTP requests to /api/user/* endpoints without authentication headers
- Unusual traffic spikes to API endpoints
SIEM Query:
source="fxserver.log" AND ("GET /api/user" OR "POST /api/user") AND NOT auth_token=*