CVE-2022-1235
📋 TL;DR
This vulnerability allows attackers to brute-force weak secret hashes in Live Helper Chat software, potentially compromising authentication mechanisms. It affects all users running Live Helper Chat versions prior to 3.96. Successful exploitation could lead to unauthorized access to chat systems.
💻 Affected Systems
- Live Helper Chat
📦 What is this software?
Live Helper Chat by Livehelperchat
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of chat system authentication, allowing attackers to impersonate users, access sensitive conversations, and potentially escalate privileges within the platform.
Likely Case
Unauthorized access to chat sessions, exposure of private conversations, and potential data leakage from chat logs.
If Mitigated
Limited impact with proper rate limiting, strong authentication controls, and network segmentation in place.
🎯 Exploit Status
Exploitation requires access to hash values and computational resources for brute-forcing.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.96
Vendor Advisory: https://github.com/livehelperchat/livehelperchat/commit/6538d6df3d8a60fee254170b08dd76a161f7bfdc
Restart Required: Yes
Instructions:
1. Backup current installation. 2. Download version 3.96 or later from GitHub. 3. Replace existing files with patched version. 4. Restart web server and chat service.
🔧 Temporary Workarounds
Implement Rate Limiting
allAdd rate limiting to authentication endpoints to prevent brute-force attempts
# Configure web server rate limiting (nginx example)
limit_req_zone $binary_remote_addr zone=auth:10m rate=10r/m;
location /auth { limit_req zone=auth burst=5; }
Network Segmentation
linuxRestrict access to chat system to trusted networks only
# Firewall rule example (iptables)
iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -s trusted_network -j ACCEPT
🧯 If You Can't Patch
- Implement strong authentication controls and multi-factor authentication
- Monitor authentication logs for brute-force patterns and implement alerting
🔍 How to Verify
Check if Vulnerable:
Check version number in admin panel or by examining source code for hash generation functionsCheck Version:
Check admin panel or examine version.php file in installation directoryVerify Fix Applied:
Verify installation is version 3.96 or later and check that hash generation uses strong cryptographic methods📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts from single IP
- Unusual hash generation patterns
- Authentication bypass logs
Network Indicators:
- High volume of authentication requests
- Patterns of hash brute-forcing traffic
SIEM Query:
source="auth.log" ("authentication failed" OR "invalid hash") | stats count by src_ip | where count > 100🔗 References
- https://github.com/livehelperchat/livehelperchat/commit/6538d6df3d8a60fee254170b08dd76a161f7bfdc
- https://huntr.dev/bounties/92f7b2d4-fa88-4c62-a2ee-721eebe01705
- https://github.com/livehelperchat/livehelperchat/commit/6538d6df3d8a60fee254170b08dd76a161f7bfdc
- https://huntr.dev/bounties/92f7b2d4-fa88-4c62-a2ee-721eebe01705
