CVE-2024-57632
📋 TL;DR
A SQL injection vulnerability in MonetDB Server's is_column_unique component allows attackers to execute crafted SQL statements that cause denial of service. This affects all systems running vulnerable versions of MonetDB Server, particularly those exposed to untrusted SQL input.
💻 Affected Systems
- MonetDB Server
📦 What is this software?
Monetdb by Monetdb
⚠️ Risk & Real-World Impact
Worst Case
Complete database unavailability through resource exhaustion or crash, potentially affecting dependent applications and services.
Likely Case
Temporary service disruption requiring database restart, with potential data corruption in active transactions.
If Mitigated
Minimal impact with proper input validation and query restrictions in place.
🎯 Exploit Status
Requires database authentication and ability to execute SQL statements. Crafted SQL triggers the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check GitHub issue for specific fixed version
Vendor Advisory: https://github.com/MonetDB/MonetDB/issues/7441
Restart Required: No
Instructions:
1. Check current MonetDB version. 2. Update to patched version from official repository. 3. Verify fix by testing with safe queries.
🔧 Temporary Workarounds
Restrict SQL Execution
allLimit database user permissions to prevent execution of complex queries against is_column_unique functionality
REVOKE EXECUTE ON FUNCTION is_column_unique FROM public;
GRANT EXECUTE ON FUNCTION is_column_unique TO trusted_users_only;
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all SQL queries
- Deploy network segmentation and restrict database access to only trusted applications
🔍 How to Verify
Check if Vulnerable:
Check MonetDB version: SELECT value FROM sys.version(); If version is v11.49.1 or earlier, assume vulnerable.Check Version:
SELECT value FROM sys.version();Verify Fix Applied:
After update, verify version is newer than v11.49.1 and test with previously problematic queries.📡 Detection & Monitoring
Log Indicators:
- Unusually long query execution times
- Database crash/restart events
- Multiple failed query attempts with similar patterns
Network Indicators:
- Sudden spike in database connection attempts
- Abnormal SQL query patterns from single source
SIEM Query:
source="monetdb.log" AND ("crash" OR "restart" OR "timeout") AND "is_column_unique"