CVE-2024-55411
📋 TL;DR
This vulnerability in SUNIX Multi I/O Card driver allows attackers with local access to perform arbitrary read/write operations in kernel memory via crafted IOCTL requests. It affects systems using SUNIX Multi I/O Card v10.1.0.0 driver on Windows. Attackers could escalate privileges or compromise system integrity.
💻 Affected Systems
- SUNIX Multi I/O Card
⚠️ 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 via kernel privilege escalation leading to persistent backdoor installation, data theft, or ransomware deployment.
Likely Case
Local privilege escalation allowing attackers to gain SYSTEM privileges and bypass security controls.
If Mitigated
Limited impact if proper access controls restrict local user privileges and driver loading.
🎯 Exploit Status
Proof-of-concept available on GitHub. Requires local code execution and knowledge of driver interaction.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check SUNIX website for updated driver version
Vendor Advisory: https://www.sunix.com/tw/
Restart Required: Yes
Instructions:
1. Visit SUNIX website 2. Download latest driver version 3. Uninstall current driver 4. Install updated driver 5. Reboot system
🔧 Temporary Workarounds
Restrict driver loading
WindowsUse Windows Device Guard or AppLocker to block loading of vulnerable snxpcamd.sys driver
AppLocker: New-AppLockerPolicy -RuleType Driver -Action Deny -Path "C:\Windows\System32\drivers\snxpcamd.sys" -User Everyone
Remove vulnerable driver
WindowsUninstall SUNIX Multi I/O Card driver if not required
pnputil /delete-driver snxpcamd.inf /uninstall
sc delete snxpcamd
🧯 If You Can't Patch
- Implement strict least privilege - ensure users don't have local admin rights
- Monitor for suspicious driver loading events and IOCTL calls to snxpcamd.sys
🔍 How to Verify
Check if Vulnerable:
Check driver version: Get-WmiObject Win32_PnPSignedDriver | Where-Object {$_.DeviceName -like "*SUNIX*"} | Select-Object DeviceName, DriverVersionCheck Version:
driverquery /v | findstr /i sunixVerify Fix Applied:
Verify driver version is updated and no longer v10.1.0.0📡 Detection & Monitoring
Log Indicators:
- Event ID 7045: Service installed - snxpcamd
- Suspicious IOCTL calls to snxpcamd.sys driver
- Unexpected driver loading events
Network Indicators:
- Not network exploitable - local vulnerability only
SIEM Query:
source="*security*" AND (event_id=7045 AND service_name="snxpcamd") OR (process_name="*" AND target_object="*snxpcamd.sys*")