CVE-2023-26469
📋 TL;DR
CVE-2023-26469 is a critical path traversal vulnerability in Jorani 1.0.0 that allows attackers to access arbitrary files on the server and execute remote code. This affects all organizations using Jorani 1.0.0 for leave management. The vulnerability enables complete server compromise.
💻 Affected Systems
- Jorani
📦 What is this software?
Jorani by Jorani
⚠️ Risk & Real-World Impact
Worst Case
Full server compromise leading to data theft, ransomware deployment, lateral movement within the network, and persistent backdoor installation.
Likely Case
Unauthorized file access, sensitive data exfiltration, and remote code execution leading to server takeover.
If Mitigated
Limited impact with proper network segmentation, file system permissions, and web application firewalls blocking traversal attempts.
🎯 Exploit Status
Exploit code is publicly available and requires minimal technical skill to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.1 or later
Vendor Advisory: https://jorani.org/security-features-in-lms.html
Restart Required: Yes
Instructions:
1. Backup your Jorani installation and database. 2. Download Jorani 1.0.1 or later from the official repository. 3. Replace all files with the patched version. 4. Restart your web server service.
🔧 Temporary Workarounds
Web Application Firewall Rule
allBlock path traversal patterns in HTTP requests
Add WAF rule to block requests containing '../', '..\', or similar traversal patterns
File System Permissions
linuxRestrict web server user permissions to prevent file access
chmod -R 750 /var/www/jorani/
chown -R www-data:www-data /var/www/jorani/
🧯 If You Can't Patch
- Isolate the Jorani server in a restricted network segment with no internet access
- Implement strict file system permissions and disable unnecessary PHP functions
🔍 How to Verify
Check if Vulnerable:
Check if running Jorani version 1.0.0 by examining the application version in the admin interface or checking the source code.Check Version:
Check the Jorani admin dashboard or examine the application configuration files for version information.Verify Fix Applied:
Verify the version has been updated to 1.0.1 or later in the admin interface and test that path traversal attempts are blocked.📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing '../' patterns
- Unusual file access attempts from web server process
- PHP execution errors in web server logs
Network Indicators:
- Multiple failed traversal attempts followed by successful file access
- Unusual outbound connections from the Jorani server
SIEM Query:
source="web_server_logs" AND ("../" OR "..\\" OR "%2e%2e%2f") AND dest_port=80🔗 References
- http://packetstormsecurity.com/files/174248/Jorani-Remote-Code-Execution.html
- https://github.com/Orange-Cyberdefense/CVE-repository/tree/master
- https://jorani.org/security-features-in-lms.html
- http://packetstormsecurity.com/files/174248/Jorani-Remote-Code-Execution.html
- https://github.com/Orange-Cyberdefense/CVE-repository/tree/master
- https://jorani.org/security-features-in-lms.html
