CVE-2024-51558
📋 TL;DR
This vulnerability allows remote attackers to bypass authentication protections in Wave 2.0 by brute-forcing OTP, MPIN, or password credentials due to missing rate limiting. Any organization using Wave 2.0 with API-based login functionality is affected. Attackers can gain unauthorized access to user accounts through automated credential guessing attacks.
💻 Affected Systems
- Wave 2.0
📦 What is this software?
Aero by 63moons
Wave 2.0 by 63moons
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of all user accounts, data theft, unauthorized transactions, and lateral movement within the system leading to full organizational breach.
Likely Case
Targeted account takeover of specific users, unauthorized access to sensitive data, and potential financial or operational impact.
If Mitigated
Failed authentication attempts logged but no successful account compromise due to rate limiting and monitoring.
🎯 Exploit Status
Exploitation requires no authentication and uses simple brute-force tools. Attackers need valid usernames to target.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific version
Vendor Advisory: https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2024-0332
Restart Required: Yes
Instructions:
1. Review vendor advisory for patch details
2. Download and apply the latest Wave 2.0 update
3. Restart affected services
4. Verify authentication rate limiting is functioning
🔧 Temporary Workarounds
Implement API Rate Limiting
allConfigure web application firewall or reverse proxy to limit authentication attempts per IP/user
# Example nginx rate limiting
limit_req_zone $binary_remote_addr zone=auth:10m rate=5r/m;
# Apply to auth endpoints
location /api/auth { limit_req zone=auth; }
Enable Account Lockout
allConfigure temporary account lockout after failed authentication attempts
# Application configuration
max_failed_attempts: 5
lockout_duration_minutes: 15
🧯 If You Can't Patch
- Implement network-level rate limiting at firewall/WAF
- Monitor authentication logs for brute-force patterns and alert on thresholds
🔍 How to Verify
Check if Vulnerable:
Test authentication endpoint with rapid consecutive failed attempts to see if rate limiting triggersCheck Version:
Check Wave 2.0 documentation for version command or check application interfaceVerify Fix Applied:
Attempt brute-force attack against patched system and verify account lockout/rate limiting activates📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts from single IP
- Rapid sequence of authentication failures for same user
- Authentication patterns outside normal business hours
Network Indicators:
- High volume of POST requests to authentication endpoints
- Traffic patterns showing credential stuffing tools
SIEM Query:
source="wave_logs" AND (event_type="auth_failure") | stats count by src_ip, user | where count > 10