CVE-2023-51084
📋 TL;DR
This vulnerability in hyavijava v6.0.07.1 allows remote attackers to execute arbitrary code via a stack overflow in the ResultConverter.convert2Xml method. Attackers can exploit this to take complete control of affected systems. Any application using this vulnerable version of hyavijava is at risk.
💻 Affected Systems
- hyavijava
📦 What is this software?
Hyavijava by Hyavijava
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, ransomware deployment, and lateral movement within the network.
Likely Case
Remote code execution allowing attackers to install malware, create backdoors, or use the system as part of a botnet.
If Mitigated
Denial of service if exploit fails or is blocked, with potential system instability.
🎯 Exploit Status
The vulnerability is publicly documented with proof-of-concept details available, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No official vendor advisory found
Restart Required: Yes
Instructions:
1. Check for updated version from hyavijava maintainers. 2. If no patch exists, consider alternative libraries or implement workarounds. 3. Restart affected applications after any changes.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and size limits for data passed to ResultConverter.convert2Xml method
Network Segmentation
allIsolate systems using hyavijava from internet and restrict network access
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure
- Deploy runtime application self-protection (RASP) or web application firewall (WAF) with stack overflow protection
🔍 How to Verify
Check if Vulnerable:
Check if hyavijava v6.0.07.1 is present in your application dependencies or classpathCheck Version:
Check build files (pom.xml, build.gradle) or examine JAR files for hyavijava versionVerify Fix Applied:
Verify hyavijava version has been updated to a patched version (if available) or removed from the application📡 Detection & Monitoring
Log Indicators:
- Java stack overflow exceptions
- OutOfMemoryError related to ResultConverter
- Unusual process spawning from Java applications
Network Indicators:
- Unusual outbound connections from Java applications
- Exploit kit traffic patterns
SIEM Query:
source="application_logs" AND ("stack overflow" OR "ResultConverter" OR "OutOfMemoryError")