CVE-2024-23732
📋 TL;DR
This vulnerability allows attackers to cause a denial of service (DoS) in Embedchain by sending specially crafted JSON data with long strings that trigger inefficient regular expression processing. It affects any system using Embedchain versions before 0.1.57 that processes untrusted JSON input.
💻 Affected Systems
- Embedchain
📦 What is this software?
Embedchain by Embedchain
⚠️ Risk & Real-World Impact
Worst Case
Complete service unavailability due to CPU exhaustion, potentially affecting all users of the application.
Likely Case
Degraded performance or temporary service disruption for users processing malicious JSON payloads.
If Mitigated
Minimal impact with proper input validation and rate limiting in place.
🎯 Exploit Status
ReDoS attacks are well-known and easy to craft; no authentication required to trigger the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.1.57
Vendor Advisory: https://github.com/embedchain/embedchain/compare/0.1.56...0.1.57
Restart Required: Yes
Instructions:
1. Update Embedchain to version 0.1.57 or later using pip: pip install --upgrade embedchain>=0.1.57
2. Restart any services using Embedchain
3. Verify the update was successful
🔧 Temporary Workarounds
Input Length Limitation
allImplement input validation to limit the length of JSON strings before processing
Rate Limiting
allImplement rate limiting on JSON processing endpoints to prevent DoS attacks
🧯 If You Can't Patch
- Implement strict input validation to reject JSON with suspiciously long string values
- Deploy Web Application Firewall (WAF) with ReDoS protection rules
🔍 How to Verify
Check if Vulnerable:
Check Embedchain version: python -c "import embedchain; print(embedchain.__version__)" - if version < 0.1.57, system is vulnerableCheck Version:
python -c "import embedchain; print(embedchain.__version__)"Verify Fix Applied:
After update, verify version is 0.1.57 or higher using same command📡 Detection & Monitoring
Log Indicators:
- Unusually long processing times for JSON requests
- High CPU usage spikes
- Request timeouts on JSON endpoints
Network Indicators:
- Multiple requests with large JSON payloads from single source
- Pattern of requests with extremely long string values
SIEM Query:
source="application.logs" AND ("json processing" OR "embedchain") AND (duration>10s OR "timeout")