CVE-2024-33228
📋 TL;DR
This vulnerability allows attackers to escalate privileges and execute arbitrary code by sending crafted IOCTL requests to the segwindrvx64.sys driver in Insyde Software Corp SEG Windows Driver. It affects systems running the vulnerable driver version, potentially allowing local attackers to gain SYSTEM-level privileges.
💻 Affected Systems
- Insyde Software Corp SEG Windows Driver
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with SYSTEM-level privileges, enabling installation of persistent malware, credential theft, and lateral movement across the network.
Likely Case
Local privilege escalation allowing attackers to bypass security controls, install additional malware, or access sensitive system resources.
If Mitigated
Limited impact if proper endpoint protection, driver signature enforcement, and least privilege principles are implemented.
🎯 Exploit Status
Public proof-of-concept code exists in the DriverHunter repository. Exploitation requires local access to the system.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
1. Check with system/OEM manufacturer for updated driver version. 2. If available, download and install the patched driver. 3. Verify driver signature and version after installation.
🔧 Temporary Workarounds
Disable or remove vulnerable driver
windowsRemove or disable the segwindrvx64.sys driver if not required for system functionality
sc stop segwindrv
sc delete segwindrv
del C:\Windows\System32\drivers\segwindrvx64.sys
Enable driver signature enforcement
windowsEnsure Windows requires signed drivers to prevent loading of malicious drivers
bcdedit /set nointegritychecks off
bcdedit /set testsigning off
🧯 If You Can't Patch
- Implement strict endpoint detection and response (EDR) to monitor for driver loading and privilege escalation attempts
- Apply least privilege principles and segment networks to limit lateral movement potential
🔍 How to Verify
Check if Vulnerable:
Check if segwindrvx64.sys driver exists and is version 100.00.07.02: Get-ItemProperty -Path 'C:\Windows\System32\drivers\segwindrvx64.sys' | Select-Object VersionInfoCheck Version:
powershell -command "Get-ItemProperty -Path 'C:\Windows\System32\drivers\segwindrvx64.sys' | Select-Object VersionInfo"Verify Fix Applied:
Verify driver is removed or updated to a non-vulnerable version, and driver signature enforcement is enabled📡 Detection & Monitoring
Log Indicators:
- Event ID 7045: Service installation for segwindrv
- Driver load events for segwindrvx64.sys
- Privilege escalation attempts
Network Indicators:
- Unusual outbound connections following local privilege escalation
SIEM Query:
source="*security*" AND (event_id=7045 AND service_name="segwindrv") OR (driver_name="segwindrvx64.sys")