CVE-2024-28942
📋 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 OLE DB Driver for SQL Server to connect to databases. Successful exploitation could lead to complete system compromise.
💻 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
Full system compromise with administrative privileges, data exfiltration, lateral movement, and persistent backdoor installation.
Likely Case
Remote code execution with the privileges of the application using the driver, potentially leading to data theft, service disruption, or further network compromise.
If Mitigated
Limited impact due to network segmentation, least privilege configurations, and proper input validation in applications.
🎯 Exploit Status
Exploitation requires sending specially crafted requests to applications using the vulnerable driver. No public exploit code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft's April 2024 security updates for specific patched version
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-28942
Restart Required: Yes
Instructions:
1. Apply the latest security update from Microsoft's April 2024 Patch Tuesday
2. Restart affected systems and applications
3. Verify the update was successfully applied
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to applications using OLE DB Driver to only trusted sources
Application Input Validation
allImplement strict input validation in applications using the driver
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure
- Monitor for suspicious activity and implement application allowlisting
🔍 How to Verify
Check if Vulnerable:
Check the version of Microsoft OLE DB Driver for SQL Server installed on systems and compare with Microsoft's advisoryCheck Version:
Check through Windows Programs and Features or using PowerShell: Get-WmiObject -Class Win32_Product | Where-Object {$_.Name -like '*OLE DB Driver*'}Verify Fix Applied:
Verify that the patched version is installed and no vulnerable versions remain📡 Detection & Monitoring
Log Indicators:
- Unusual process creation from SQL-related applications
- Failed authentication attempts to SQL services
- Application crashes related to OLE DB components
Network Indicators:
- Unusual network traffic patterns to SQL Server ports
- Suspicious SQL queries from unexpected sources
SIEM Query:
Example: (event_source="Application" AND message="*OLE DB*" AND (message="*crash*" OR message="*exception*")) OR (destination_port=1433 AND source_ip NOT IN trusted_ips)