CVE-2024-36823
📋 TL;DR
The encrypt() function in Ninja Core v7.0.0 uses a weak cryptographic algorithm, potentially allowing attackers to decrypt sensitive information. This affects all systems running Ninja Core v7.0.0 that use the encrypt() function for data protection.
💻 Affected Systems
- Ninja Core
📦 What is this software?
Ninja by Ninjaframework
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of all encrypted data including passwords, session tokens, and confidential information stored using the vulnerable function.
Likely Case
Exposure of some encrypted data that attackers can decrypt using brute force or cryptographic attacks against the weak algorithm.
If Mitigated
Limited impact if strong network controls prevent access to encrypted data or if minimal sensitive data uses the vulnerable function.
🎯 Exploit Status
Exploitation requires access to encrypted data and knowledge of the weak algorithm used. No authentication bypass is involved.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v7.0.1 or later
Vendor Advisory: https://github.com/ninjaframework/ninja/issues
Restart Required: Yes
Instructions:
1. Check current Ninja Core version. 2. Update to v7.0.1 or later via package manager. 3. Restart all services using Ninja Core. 4. Re-encrypt any data previously encrypted with the vulnerable function.
🔧 Temporary Workarounds
Replace encrypt() with secure alternative
allManually replace calls to the vulnerable encrypt() function with a secure cryptographic implementation like AES-256-GCM.
🧯 If You Can't Patch
- Isolate systems using Ninja Core v7.0.0 from untrusted networks
- Implement additional encryption layer for sensitive data using a secure algorithm before using the vulnerable encrypt() function
🔍 How to Verify
Check if Vulnerable:
Check if Ninja Core version is exactly 7.0.0 and if the application uses the encrypt() function.Check Version:
Check package.json or build configuration for 'ninja-core' version, or run: npm list ninja-core (if using npm)Verify Fix Applied:
Verify Ninja Core version is 7.0.1 or later and test that encrypted data cannot be decrypted using known weak algorithm attacks.📡 Detection & Monitoring
Log Indicators:
- Unusual decryption attempts or errors in cryptographic operations
Network Indicators:
- Traffic patterns suggesting bulk data extraction from encrypted storage
SIEM Query:
source="application_logs" AND ("encrypt" OR "decrypt") AND error OR warning