CVE-2024-57629

7.5 HIGH

📋 TL;DR

This vulnerability in MonetDB Server's tail_type 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 running this version are at risk of service disruption.

💻 Affected Systems

Products:
  • MonetDB Server
Versions: 11.49.1
Operating Systems: All platforms running MonetDB
Default Config Vulnerable: ⚠️ Yes
Notes: All deployments of MonetDB Server 11.49.1 are vulnerable regardless of configuration. The vulnerability is in the core tail_type component.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database server crash requiring manual restart, leading to extended service downtime and potential data corruption.

🟠

Likely Case

Temporary service disruption where the database becomes unresponsive, requiring restart and causing brief application downtime.

🟢

If Mitigated

Minimal impact with proper network segmentation and SQL input validation preventing malicious queries from reaching the database.

🌐 Internet-Facing: HIGH - Internet-facing MonetDB instances are directly exposed to attackers who can send crafted SQL without authentication.
🏢 Internal Only: MEDIUM - Internal attackers or compromised internal systems could exploit this, but requires network access to the database port.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires knowledge of SQL injection techniques specific to MonetDB's tail_type component. No authentication bypass is needed as SQL execution is typically allowed to database users.

🛠️ 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/7472

Restart Required: No

Instructions:

1. Check the GitHub issue for the specific fixed version. 2. Upgrade MonetDB Server to the patched version. 3. No database restart is required for the patch itself, but restart may be needed if currently experiencing DoS.

🔧 Temporary Workarounds

SQL Input Validation

all

Implement strict input validation on all SQL queries to prevent crafted statements from reaching the database.

Network Access Restrictions

all

Restrict database access to only trusted application servers using firewall rules.

🧯 If You Can't Patch

  • Implement Web Application Firewall (WAF) with SQL injection protection rules
  • Monitor database logs for unusual SQL patterns and implement rate limiting on database connections

🔍 How to Verify

Check if Vulnerable:

Check MonetDB version with 'monetdb version' command. If version is exactly 11.49.1, the system is vulnerable.

Check Version:

monetdb version

Verify Fix Applied:

After upgrade, verify version is no longer 11.49.1. Test with normal SQL operations to ensure functionality.

📡 Detection & Monitoring

Log Indicators:

  • Database crash logs
  • Unusual SQL error messages related to tail_type
  • Connection timeouts or refused connections

Network Indicators:

  • Unusual SQL query patterns targeting tail_type functions
  • Multiple failed connection attempts to database port

SIEM Query:

source="monetdb.log" AND ("crash" OR "tail_type" OR "DoS")

🔗 References

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