CVE-2024-51561
📋 TL;DR
This vulnerability allows authenticated attackers to bypass OTP verification in Aero's authentication system by intercepting and manipulating responses during second-factor authentication. It affects systems using Aero's vulnerable API endpoints for OTP validation. Attackers could gain unauthorized access to other user accounts.
💻 Affected Systems
- Aero
📦 What is this software?
Aero by 63moons
Wave 2.0 by 63moons
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover across the entire user base, leading to data breaches, privilege escalation, and lateral movement within the system.
Likely Case
Targeted account compromise of specific users, potentially leading to unauthorized access to sensitive data or functionality.
If Mitigated
Limited impact with proper network segmentation, strong authentication monitoring, and rate limiting on authentication endpoints.
🎯 Exploit Status
Exploitation requires man-in-the-middle capabilities or response manipulation during OTP validation flow
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched 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 patched version. 2. Apply patch to all affected Aero installations. 3. Restart services. 4. Verify OTP validation mechanism is properly secured.
🔧 Temporary Workarounds
Network Segmentation
allIsolate authentication endpoints from untrusted networks to reduce attack surface
Rate Limiting
allImplement rate limiting on OTP validation endpoints to detect and block brute force attempts
🧯 If You Can't Patch
- Implement additional authentication monitoring and alerting for suspicious OTP bypass attempts
- Enforce strict network controls and consider disabling vulnerable OTP endpoints if not critical
🔍 How to Verify
Check if Vulnerable:
Test OTP validation endpoints for improper response handling; check if manipulated responses can bypass verificationCheck Version:
Check Aero software version against patched version in vendor advisoryVerify Fix Applied:
Verify that OTP validation now properly validates responses and cannot be bypassed through manipulation📡 Detection & Monitoring
Log Indicators:
- Multiple failed OTP attempts followed by successful authentication from same source
- Unusual authentication patterns bypassing OTP
Network Indicators:
- Man-in-the-middle traffic patterns targeting authentication endpoints
- Unusual response manipulation during OTP validation
SIEM Query:
source="authentication_logs" AND (event="OTP_validation_failed" OR event="OTP_bypass_detected")