CVE-2024-11833
📋 TL;DR
CVE-2024-11833 is a path traversal vulnerability in PlexTrac that allows attackers to write arbitrary files to the server filesystem. This affects PlexTrac versions from 1.61.3 through 2.8.1. Successful exploitation could lead to remote code execution or data manipulation.
💻 Affected Systems
- PlexTrac
📦 What is this software?
Plextrac by Plextrac
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data exfiltration, or ransomware deployment.
Likely Case
Unauthorized file writes enabling web shell installation, configuration modification, or data corruption.
If Mitigated
Limited impact if proper network segmentation and file system permissions restrict write access to critical areas.
🎯 Exploit Status
Path traversal vulnerabilities typically have low exploitation complexity once the vulnerable endpoint is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.8.1 and later
Vendor Advisory: https://docs.plextrac.com/plextrac-documentation/master/security-advisories#release-2.11.0
Restart Required: Yes
Instructions:
1. Backup your PlexTrac instance and data. 2. Upgrade to PlexTrac version 2.8.1 or later. 3. Restart the PlexTrac service. 4. Verify the upgrade was successful.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to PlexTrac to only trusted IP addresses or internal networks.
File System Permissions Hardening
linuxApply strict file system permissions to limit write access to PlexTrac directories.
chmod -R 755 /path/to/plextrac
chown -R www-data:www-data /path/to/plextrac
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to PlexTrac.
- Deploy a web application firewall (WAF) with path traversal protection rules.
🔍 How to Verify
Check if Vulnerable:
Check PlexTrac version via admin interface or configuration files. If version is between 1.61.3 and 2.8.0 inclusive, the system is vulnerable.Check Version:
Check PlexTrac web interface admin panel or configuration files for version information.Verify Fix Applied:
Confirm PlexTrac version is 2.8.1 or later and test file upload functionality with path traversal attempts.📡 Detection & Monitoring
Log Indicators:
- Unusual file write operations in PlexTrac logs
- Requests containing '../' sequences in file upload endpoints
- Unauthorized file creation in system directories
Network Indicators:
- HTTP requests with path traversal sequences to PlexTrac endpoints
- Unusual outbound connections from PlexTrac server
SIEM Query:
source="plextrac.logs" AND ("../" OR "..\" OR "%2e%2e%2f")