CVE-2024-57622
📋 TL;DR
This vulnerability in MonetDB Server's exp_bin 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. The issue 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 unavailability requiring restart, potential data corruption if crash occurs during transactions, and service disruption for all dependent applications.
Likely Case
Temporary database service interruption requiring manual restart, with potential transaction loss for in-flight operations.
If Mitigated
Minimal impact with proper network segmentation, input validation, and monitoring allowing quick detection and recovery.
🎯 Exploit Status
Exploitation requires ability to execute SQL statements against the database, which typically requires database credentials. The CWE-89 classification suggests SQL injection-like behavior.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check GitHub issue for fixed version (likely v11.49.2 or later)
Vendor Advisory: https://github.com/MonetDB/MonetDB/issues/7434
Restart Required: No
Instructions:
1. Check current version with 'mclient --version'. 2. Update to patched version via package manager or source. 3. Verify fix by testing with previously problematic SQL patterns.
🔧 Temporary Workarounds
Input Validation Filter
allImplement application-layer validation to reject suspicious SQL patterns before reaching database
Network Access Restriction
linuxLimit database access to trusted application servers only using firewall rules
iptables -A INPUT -p tcp --dport 50000 -s trusted_ip -j ACCEPT
iptables -A INPUT -p tcp --dport 50000 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate MonetDB from untrusted networks
- Deploy web application firewall (WAF) or database firewall to filter malicious SQL patterns
🔍 How to Verify
Check if Vulnerable:
Check if running MonetDB Server v11.49.1. Test with controlled SQL patterns that trigger exp_bin component (requires caution).Check Version:
mclient --version or monetdbd versionVerify Fix Applied:
After patching, attempt to reproduce the issue with the same SQL patterns that previously caused DoS.📡 Detection & Monitoring
Log Indicators:
- Database crash logs
- Unexpected process termination
- High CPU/memory usage followed by service stop
- Error messages containing 'exp_bin' or SQL parsing failures
Network Indicators:
- Unusual SQL query patterns from single source
- Rapid sequential SQL requests
- Traffic spikes to database port (default 50000)
SIEM Query:
source="monetdb.log" AND ("crash" OR "segfault" OR "exp_bin" OR "denial of service")