CVE-2024-57658
📋 TL;DR
This vulnerability in OpenLink Virtuoso OpenSource allows attackers to cause denial of service by sending specially crafted SQL statements to the sql_tree_hash_1 component. The vulnerability affects systems running vulnerable versions of Virtuoso OpenSource database server. Attackers can disrupt database availability without authentication.
💻 Affected Systems
- OpenLink Virtuoso OpenSource
📦 What is this software?
Virtuoso by Openlinksw
⚠️ Risk & Real-World Impact
Worst Case
Complete database service disruption making all dependent applications unavailable, potentially requiring service restart and causing data loss or corruption.
Likely Case
Database service crashes or becomes unresponsive, requiring manual intervention to restore service, causing temporary application downtime.
If Mitigated
Limited impact with proper network segmentation, rate limiting, and monitoring allowing quick detection and recovery.
🎯 Exploit Status
Attack requires crafting specific SQL statements but does not require authentication. No public exploit code is available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check GitHub issue for latest patched version
Vendor Advisory: https://github.com/openlink/virtuoso-opensource/issues/1209
Restart Required: Yes
Instructions:
1. Check the GitHub issue for patch availability. 2. Update to the latest patched version of Virtuoso OpenSource. 3. Restart the Virtuoso service. 4. Verify the fix is applied.
🔧 Temporary Workarounds
Network Access Control
allRestrict database access to only trusted applications and networks
Use firewall rules to limit access to Virtuoso port (default 1111)
Input Validation
allImplement SQL query validation at application layer
Configure application firewalls or middleware to filter suspicious SQL patterns
🧯 If You Can't Patch
- Implement strict network segmentation to isolate database servers
- Deploy rate limiting and monitoring for abnormal SQL query patterns
🔍 How to Verify
Check if Vulnerable:
Check Virtuoso version against affected versions. Monitor for service crashes after receiving SQL queries.Check Version:
SELECT sys_stat('st_dbms_version');Verify Fix Applied:
After patching, test with normal SQL operations and monitor for stability. Check version matches patched release.📡 Detection & Monitoring
Log Indicators:
- Database service crashes
- Abnormal termination logs
- High frequency of SQL parsing errors
Network Indicators:
- Unusual SQL query patterns
- High volume of SQL requests from single source
SIEM Query:
source="virtuoso.log" AND ("crash" OR "segmentation fault" OR "abnormal termination")