CVE-2024-57633
📋 TL;DR
This vulnerability in MonetDB Server's exps_bind_column component allows attackers to execute crafted SQL statements that cause a Denial of Service (DoS) by crashing or hanging the database server. It affects MonetDB Server version 11.49.1 specifically. Database administrators and organizations running vulnerable MonetDB instances are affected.
💻 Affected Systems
- MonetDB Server
📦 What is this software?
Monetdb by Monetdb
⚠️ Risk & Real-World Impact
Worst Case
Complete database service disruption requiring manual restart, potentially causing extended downtime and data unavailability for applications.
Likely Case
Temporary service interruption affecting database-dependent applications until the server is restarted.
If Mitigated
Minimal impact with proper network segmentation and access controls limiting who can execute SQL against the database.
🎯 Exploit Status
Exploitation requires SQL execution privileges against the database. The CWE-89 classification suggests SQL injection techniques may be involved.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 11.49.1 (check GitHub issue for specific fixed version)
Vendor Advisory: https://github.com/MonetDB/MonetDB/issues/7438
Restart Required: No
Instructions:
1. Check current MonetDB version. 2. Update to the latest stable version that addresses this issue. 3. Verify the fix by checking version and testing functionality.
🔧 Temporary Workarounds
Restrict SQL Execution
allLimit which users and applications can execute SQL statements against the database
-- Use MonetDB's user permission system to restrict SQL execution
-- Example: REVOKE EXECUTE ON ALL FUNCTIONS FROM PUBLIC;
Network Access Controls
allRestrict network access to the database port (default 50000)
-- Firewall rule example (Linux): iptables -A INPUT -p tcp --dport 50000 -s trusted_ip -j ACCEPT
-- Then: iptables -A INPUT -p tcp --dport 50000 -j DROP
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries in all applications connecting to the database
- Deploy a web application firewall (WAF) or database firewall that can detect and block malicious SQL patterns
🔍 How to Verify
Check if Vulnerable:
Check MonetDB version: mclient -s "SELECT value FROM sys.env() WHERE name = 'monet_version';" and verify if it's 11.49.1Check Version:
mclient -s "SELECT value FROM sys.env() WHERE name = 'monet_version';"Verify Fix Applied:
After updating, run the same version check command and confirm version is higher than 11.49.1📡 Detection & Monitoring
Log Indicators:
- Database crash logs
- Unexpected termination of monetdbd process
- Error messages related to exps_bind_column or SQL parsing
Network Indicators:
- Multiple failed SQL queries from single source
- Unusual SQL statement patterns targeting the database port
SIEM Query:
source="monetdb.log" AND ("crash" OR "terminated" OR "exps_bind_column")