CVE-2022-45637
📋 TL;DR
This vulnerability allows attackers to bypass password reset mechanisms in MEGAFEIS and BOFEI DBD+ mobile applications due to an insecure expiry mechanism. Attackers can potentially reset user passwords without authorization. Affected users include all users of the vulnerable mobile applications on iOS and Android.
💻 Affected Systems
- MEGAFEIS DBD+ Application
- BOFEI DBD+ Application
📦 What is this software?
Bofei Dbd\+ by Megafeis
Bofei Dbd\+ by Megafeis
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover across all user accounts, leading to unauthorized access to sensitive data and potential privilege escalation.
Likely Case
Targeted account compromise allowing attackers to access user data and potentially use accounts for further attacks.
If Mitigated
Limited impact with proper monitoring and multi-factor authentication in place, though password reset functionality remains vulnerable.
🎯 Exploit Status
Public GitHub repository contains proof-of-concept. Exploitation requires network access to the password reset service.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No vendor advisory found
Restart Required: No
Instructions:
1. Contact MEGAFEIS/BOFEI for patch information. 2. Update mobile applications when patch becomes available. 3. Monitor official app stores for updates.
🔧 Temporary Workarounds
Disable Password Reset Functionality
allTemporarily disable password reset feature in application backend
Implement Rate Limiting
allAdd rate limiting to password reset endpoints to prevent brute force attacks
🧯 If You Can't Patch
- Implement multi-factor authentication for all user accounts
- Monitor for suspicious password reset attempts and account access patterns
🔍 How to Verify
Check if Vulnerable:
Test password reset functionality by attempting to reset password with expired or manipulated tokensCheck Version:
Check app version in mobile application settings (iOS: Settings > General > About, Android: Settings > Apps > App Info)Verify Fix Applied:
Verify password reset tokens have proper expiry validation and cannot be reused📡 Detection & Monitoring
Log Indicators:
- Multiple password reset attempts for same account
- Password reset requests with suspicious timing patterns
- Successful password resets without proper authentication
Network Indicators:
- Unusual traffic to password reset endpoints
- Requests with manipulated token parameters
SIEM Query:
source="app_logs" AND (event="password_reset" AND (token_expiry="none" OR token_reuse="true"))