CVE-2024-5124
📋 TL;DR
This timing attack vulnerability in gaizhenbiao/chuanhuchatgpt allows attackers to guess passwords by measuring how long password comparisons take. Attackers can exploit this to compromise user accounts and access sensitive information. Anyone using version 20240310 of this software is affected.
💻 Affected Systems
- gaizhenbiao/chuanhuchatgpt
📦 What is this software?
Chuanhuchatgpt by Gaizhenbiao
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through password guessing leading to unauthorized access to all user accounts and sensitive data.
Likely Case
Targeted password guessing attacks against specific users, potentially leading to account takeover and data exposure.
If Mitigated
Limited impact with proper rate limiting, strong passwords, and network segmentation in place.
🎯 Exploit Status
Exploitation requires network access and ability to measure response times with precision.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in commit e46ec4ecd896bc3c88eb9a2f44e8593f3c6761b4
Vendor Advisory: https://github.com/gaizhenbiao/chuanhuchatgpt/commit/e46ec4ecd896bc3c88eb9a2f44e8593f3c6761b4
Restart Required: Yes
Instructions:
1. Update to latest version from GitHub repository. 2. Replace vulnerable password comparison with constant-time comparison. 3. Restart the application.
🔧 Temporary Workarounds
Implement rate limiting
allAdd rate limiting to password authentication attempts to slow down timing attacks
Use constant-time comparison
allReplace '==' operator with constant-time comparison function like hmac.compare_digest() in Python
import hmac
hmac.compare_digest(password1, password2)
🧯 If You Can't Patch
- Implement network-level rate limiting and monitoring
- Require multi-factor authentication for all users
🔍 How to Verify
Check if Vulnerable:
Check if password comparison uses '==' operator instead of constant-time comparison in authentication codeCheck Version:
Check repository version or commit hash against vulnerable version 20240310Verify Fix Applied:
Verify password comparison uses hmac.compare_digest() or similar constant-time function📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts from single IP
- Unusual timing patterns in authentication requests
Network Indicators:
- High volume of authentication requests with slight timing variations
SIEM Query:
source="auth.log" | stats count by src_ip | where count > 100