CVE-2024-29048
📋 TL;DR
This vulnerability in Microsoft OLE DB Driver for SQL Server allows remote attackers to execute arbitrary code on affected systems by sending specially crafted requests. It affects applications using the vulnerable driver to connect to SQL Server databases. Attackers could potentially take full control of the target system.
💻 Affected Systems
- Microsoft OLE DB Driver for SQL Server
📦 What is this software?
Sql Server 2019 by Microsoft
Sql Server 2019 by Microsoft
Sql Server 2022 by Microsoft
Sql Server 2022 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attacker gaining SYSTEM/administrator privileges, data exfiltration, ransomware deployment, and lateral movement across the network.
Likely Case
Remote code execution leading to data theft, credential harvesting, and installation of backdoors or malware on vulnerable servers.
If Mitigated
Limited impact with proper network segmentation, application allowlisting, and least privilege principles in place.
🎯 Exploit Status
Exploitation requires the attacker to be able to send specially crafted requests to an application using the vulnerable driver.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Update Guide for specific patched versions
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29048
Restart Required: Yes
Instructions:
1. Apply the latest security updates from Microsoft
2. Update Microsoft OLE DB Driver for SQL Server to the latest version
3. Restart affected systems and applications
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to SQL Server instances and applications using OLE DB driver
Application Control
windowsImplement application allowlisting to prevent unauthorized code execution
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to SQL Server instances
- Apply the principle of least privilege to service accounts and user permissions
🔍 How to Verify
Check if Vulnerable:
Check installed OLE DB Driver version and compare with Microsoft's advisory for affected versionsCheck Version:
Check via Windows Programs and Features or registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSOLEDBSQLVerify Fix Applied:
Verify OLE DB Driver version has been updated to a patched version listed in Microsoft's advisory📡 Detection & Monitoring
Log Indicators:
- Unusual SQL connection attempts
- Failed authentication attempts to SQL Server
- Process creation from SQL-related services
Network Indicators:
- Unusual network traffic to SQL Server ports (default 1433)
- Anomalous SQL protocol patterns
SIEM Query:
Example: source="*sql*" AND (event_id=4625 OR process_name="sqlservr.exe") AND dest_port=1433