CVE-2024-29982
📋 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. The vulnerability is heap-based and can 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 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 due to network segmentation, application allowlisting, and proper access controls preventing successful exploitation.
🎯 Exploit Status
CVE-2024-29982 is a heap-based buffer overflow (CWE-122) that can be triggered remotely without authentication. Microsoft rates this as 'Exploitation More Likely'.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft's April 2024 security updates for specific patched versions
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29982
Restart Required: Yes
Instructions:
1. Apply the latest security updates from Microsoft's April 2024 Patch Tuesday. 2. Update the 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 ports
- Deploy endpoint detection and response (EDR) solutions with behavioral monitoring for suspicious activities
🔍 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 Windows Update history or use PowerShell: Get-WmiObject -Class Win32_Product | Where-Object {$_.Name -like '*OLE DB Driver for SQL Server*'}Verify Fix Applied:
Verify that the April 2024 security updates are installed and OLE DB driver version matches patched versions📡 Detection & Monitoring
Log Indicators:
- Unusual network connections to SQL Server ports
- Failed authentication attempts followed by successful connections
- Process creation events from SQL Server-related processes
Network Indicators:
- Unusual SQL Server protocol traffic patterns
- Connection attempts from unexpected IP addresses to SQL Server ports
SIEM Query:
source="windows" AND (event_id=4688 OR event_id=4689) AND (process_name="sqlservr.exe" OR process_name contains "oledb")