CVE-2024-57620
📋 TL;DR
This vulnerability in MonetDB Server's trimchars component allows attackers to execute crafted SQL statements that cause a Denial of Service (DoS) by crashing or hanging the database server. It affects organizations running vulnerable versions of MonetDB Server, particularly those exposing database interfaces to untrusted users. The vulnerability stems from improper input validation in SQL processing.
💻 Affected Systems
- MonetDB Server
📦 What is this software?
Monetdb by Monetdb
⚠️ Risk & Real-World Impact
Worst Case
Complete database service disruption requiring manual restart, potential data corruption if transactions are interrupted, and extended downtime affecting all dependent applications.
Likely Case
Database service becomes unresponsive, requiring administrator intervention to restart the MonetDB service, causing temporary application outages.
If Mitigated
Minimal impact with proper network segmentation and input validation controls in place, potentially causing only isolated service interruptions.
🎯 Exploit Status
Exploitation requires ability to execute SQL statements against the database. While no public exploit exists, the vulnerability is in SQL processing which attackers commonly target.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check GitHub issue for specific patched version
Vendor Advisory: https://github.com/MonetDB/MonetDB/issues/7417
Restart Required: No
Instructions:
1. Check the GitHub issue for patch availability. 2. Upgrade to the patched version of MonetDB Server. 3. Test the upgrade in a non-production environment first. 4. Apply to production systems during maintenance windows.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and SQL sanitization at the application layer to prevent malicious SQL from reaching the database.
Network Access Restrictions
allRestrict database access to only trusted application servers and administrators using firewall rules.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate MonetDB servers from untrusted networks
- Deploy web application firewalls (WAF) or database firewalls to filter malicious SQL patterns
🔍 How to Verify
Check if Vulnerable:
Check if running MonetDB Server version 11.47.11 or other potentially affected versions. Review logs for SQL errors or service crashes.Check Version:
SELECT monetdb_version(); or check server startup logsVerify Fix Applied:
After patching, verify the version is updated and monitor for service stability. Test with normal SQL operations.📡 Detection & Monitoring
Log Indicators:
- Unexpected database crashes
- SQL syntax errors related to trim functions
- Service restart events
- Long-running or hanging SQL queries
Network Indicators:
- Unusual SQL patterns targeting trim functions
- Multiple rapid SQL requests from single sources
SIEM Query:
source="monetdb.log" AND ("crash" OR "hang" OR "trim" OR "syntax error")