CVE-2024-0916
📋 TL;DR
This critical vulnerability in UvDesk Community allows unauthenticated attackers to upload malicious files and execute arbitrary code on affected systems. It impacts all UvDesk Community installations from version 1.0.0 through 1.1.3. Attackers can completely compromise vulnerable servers without any authentication.
💻 Affected Systems
- UvDesk Community
⚠️ 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 system compromise allowing attackers to execute arbitrary commands, steal data, install persistent backdoors, pivot to internal networks, and potentially use the server for further attacks.
Likely Case
Remote code execution leading to web server compromise, data theft, defacement, and installation of cryptocurrency miners or ransomware.
If Mitigated
Attack blocked at web application firewall or file upload validation layer, with no impact to system integrity.
🎯 Exploit Status
The vulnerability is trivial to exploit with publicly available proof-of-concept code. No authentication required makes it highly attractive to attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.1.4 or later
Vendor Advisory: https://github.com/uvdesk/core-framework/pull/706
Restart Required: Yes
Instructions:
1. Backup your UvDesk installation and database. 2. Update to UvDesk Community version 1.1.4 or later. 3. Restart your web server. 4. Verify the patch is applied by checking the version.
🔧 Temporary Workarounds
Web Application Firewall Rule
allBlock file upload requests to UvDesk endpoints or implement strict file type validation at the WAF level.
# WAF-specific rules vary by vendor
File Upload Restriction
linuxConfigure web server to block uploads to vulnerable endpoints or implement strict file extension filtering.
# Apache: <Location /uvdesk/uploads>\n# Deny from all\n# </Location>
# Nginx: location ~* ^/uvdesk/uploads { return 403; }
🧯 If You Can't Patch
- Immediately isolate affected systems from internet access and restrict internal network access.
- Implement strict network segmentation and monitor all traffic to/from UvDesk servers for suspicious activity.
🔍 How to Verify
Check if Vulnerable:
Check UvDesk version via admin panel or by examining the application files. Versions 1.0.0-1.1.3 are vulnerable.Check Version:
Check composer.json or version files in UvDesk installation directory, or view version in admin interface.Verify Fix Applied:
Confirm version is 1.1.4 or later and test file upload functionality with malicious payloads to ensure they are rejected.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to UvDesk endpoints
- Execution of system commands from web process
- Uploads of files with executable extensions (.php, .exe, .sh)
Network Indicators:
- POST requests to file upload endpoints with unusual payloads
- Outbound connections from web server to suspicious IPs
SIEM Query:
source="web_server" AND (uri_path="/uvdesk/*/upload" OR uri_path="/uploads") AND (file_extension="php" OR file_extension="exe" OR file_extension="sh")