CVE-2024-34469
📋 TL;DR
This cross-site scripting (XSS) vulnerability in Rukovoditel allows attackers to inject malicious scripts via the user_photo parameter during user registration. When exploited, it enables session hijacking, credential theft, or defacement for users who view the compromised registration page. All Rukovoditel instances before version 3.5.3 are affected.
💻 Affected Systems
- Rukovoditel
📦 What is this software?
Rukovoditel by Rukovoditel
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrator session cookies, gain full system control, pivot to internal networks, and deploy ransomware or exfiltrate sensitive data.
Likely Case
Attackers hijack user sessions to steal credentials, redirect users to phishing sites, or deface the application interface.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before execution, preventing any impact.
🎯 Exploit Status
Exploitation requires no authentication and involves simple script injection via the user_photo parameter in registration requests.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.5.3
Vendor Advisory: https://forum.rukovoditel.net/viewtopic.php?t=5071
Restart Required: No
Instructions:
1. Backup your Rukovoditel database and files. 2. Download version 3.5.3 from the official Rukovoditel website. 3. Replace all files with the new version, preserving configuration files. 4. Verify the update via the admin panel.
🔧 Temporary Workarounds
Disable User Registration
allTemporarily disable the registration module to prevent exploitation via the vulnerable endpoint.
Edit configuration to disable registration module or restrict access to index.php?module=users/registration
Web Application Firewall Rule
allBlock requests containing script tags or malicious patterns in the user_photo parameter.
Add WAF rule: Block if ARGS:user_photo contains '<script' or 'javascript:'
🧯 If You Can't Patch
- Implement strict input validation to sanitize all user_photo parameter inputs before processing.
- Deploy a web application firewall (WAF) with XSS protection rules to filter malicious payloads.
🔍 How to Verify
Check if Vulnerable:
Check if your Rukovoditel version is below 3.5.3 by viewing the version in the admin panel or footer.Check Version:
Check the footer of your Rukovoditel instance or view the version in the admin panel under System Info.Verify Fix Applied:
After updating, confirm the version shows 3.5.3 or higher in the admin interface and test that script injection via user_photo no longer executes.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to index.php?module=users/registration with suspicious user_photo parameters containing script tags or encoded payloads.
- Unusual increase in registration attempts from single IP addresses.
Network Indicators:
- Inbound traffic with encoded JavaScript in POST parameters to the registration endpoint.
- Outbound connections to suspicious domains following registration requests.
SIEM Query:
source="web_logs" AND uri="/index.php?module=users/registration" AND (user_photo CONTAINS "<script" OR user_photo CONTAINS "javascript:")