CVE-2024-57662
📋 TL;DR
This vulnerability in the sqlg_hash_source component of OpenLink Virtuoso OpenSource allows attackers to cause Denial of Service (DoS) by sending specially crafted SQL statements. It affects Virtuoso OpenSource v7.2.11 installations that process untrusted SQL input. Database administrators and applications using vulnerable Virtuoso instances are at risk.
💻 Affected Systems
- OpenLink Virtuoso OpenSource
📦 What is this software?
Virtuoso by Openlinksw
⚠️ Risk & Real-World Impact
Worst Case
Complete database service disruption, making all database operations unavailable until service restart
Likely Case
Partial service degradation or temporary unavailability affecting dependent applications
If Mitigated
Minimal impact with proper input validation and query filtering in place
🎯 Exploit Status
Exploitation requires ability to execute SQL statements. No public exploit code is available, but the vulnerability is well-documented in the GitHub issue.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v7.2.12 or later
Vendor Advisory: https://github.com/openlink/virtuoso-opensource/issues/1217
Restart Required: No
Instructions:
1. Check current version with 'isql -v' 2. Download latest version from GitHub releases 3. Follow upgrade instructions in Virtuoso documentation 4. Verify upgrade with version check
🔧 Temporary Workarounds
Input Validation and Query Filtering
allImplement strict input validation and filtering for SQL statements before they reach the database
Rate Limiting and Query Monitoring
allImplement rate limiting on database connections and monitor for unusual query patterns
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit database access
- Deploy web application firewall (WAF) or database firewall to filter malicious SQL patterns
🔍 How to Verify
Check if Vulnerable:
Check Virtuoso version with command: isql -v | grep 'Version'Check Version:
isql -v | grep 'Version'Verify Fix Applied:
Verify version is v7.2.12 or later and test with normal SQL operations📡 Detection & Monitoring
Log Indicators:
- Unusual SQL query patterns
- Multiple failed query attempts
- Database service restart events
- High CPU/memory usage spikes
Network Indicators:
- Unusual volume of SQL traffic from single source
- Repeated connection attempts with SQL payloads
SIEM Query:
source="virtuoso.log" AND ("sqlg_hash_source" OR "service restart" OR "out of memory")