CVE-2024-32672
📋 TL;DR
A segmentation fault vulnerability in Samsung's Escargot JavaScript engine allows remote attackers to cause denial of service through specially crafted input. This affects systems using Escargot 4.0.0 for JavaScript execution, potentially impacting applications that embed this engine. The vulnerability can crash the JavaScript engine process when processing malicious input.
💻 Affected Systems
- Samsung Escargot JavaScript Engine
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete denial of service causing application/system crashes, potentially leading to service unavailability and requiring manual restart of affected processes.
Likely Case
Application instability and crashes when processing malicious JavaScript input, resulting in temporary service disruption until processes restart.
If Mitigated
Limited impact with proper input validation and sandboxing; crashes contained to isolated processes without affecting overall system stability.
🎯 Exploit Status
Exploitation requires delivering crafted JavaScript input to the vulnerable engine, which could occur through various attack vectors depending on how Escargot is integrated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 4.0.0 (check specific commit fixes)
Vendor Advisory: https://github.com/Samsung/escargot/pull/1322
Restart Required: Yes
Instructions:
1. Update Escargot to a patched version. 2. Rebuild any applications using Escargot. 3. Restart affected services. 4. Verify the fix by checking the version and testing with known problematic inputs.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and sanitization for JavaScript code processed by Escargot to filter potentially malicious inputs.
Process Isolation
allRun Escargot in isolated processes with automatic restart capabilities to contain crashes and maintain service availability.
🧯 If You Can't Patch
- Implement network-level filtering to block suspicious JavaScript inputs before they reach the Escargot engine.
- Deploy monitoring and alerting for process crashes to enable rapid response and manual restart if exploitation occurs.
🔍 How to Verify
Check if Vulnerable:
Check if Escargot version 4.0.0 is installed and actively used by applications.Check Version:
Check application documentation or build configuration for Escargot version; may require inspecting source code or build artifacts.Verify Fix Applied:
Verify Escargot version is updated beyond 4.0.0 and test with sample inputs that previously caused crashes.📡 Detection & Monitoring
Log Indicators:
- Segmentation fault errors in application logs
- Unexpected process termination of applications using Escargot
- Increased restart frequency of JavaScript engine processes
Network Indicators:
- Unusual patterns of JavaScript input delivery to affected systems
- Increased error responses from applications using Escargot
SIEM Query:
source="application_logs" AND ("segmentation fault" OR "SIGSEGV") AND process="*escargot*"