CVE-2024-10253
📋 TL;DR
A Time-of-Check Time-of-Use (TOCTOU) vulnerability in Lenovo PC Manager, Lenovo Browser, and Lenovo App Store could allow a local attacker to cause a denial of service by crashing the system. This affects users running vulnerable versions of these Lenovo applications on Windows systems. The vulnerability requires local access to exploit.
💻 Affected Systems
- Lenovo PC Manager
- Lenovo Browser
- Lenovo App Store
⚠️ 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
Local attacker causes complete system crash/BSOD, leading to data loss and service disruption.
Likely Case
Local user or malware causes application crashes or system instability.
If Mitigated
Limited to application crashes without system-wide impact if proper isolation exists.
🎯 Exploit Status
TOCTOU vulnerabilities typically require precise timing and local access, making exploitation moderately complex.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Lenovo advisory for specific fixed versions
Vendor Advisory: https://iknow.lenovo.com.cn/detail/425367
Restart Required: Yes
Instructions:
1. Visit the Lenovo advisory URL. 2. Identify affected applications on your system. 3. Update through Lenovo Vantage, Windows Update, or download directly from Lenovo. 4. Restart system after installation.
🔧 Temporary Workarounds
Disable or Remove Affected Applications
windowsUninstall Lenovo PC Manager, Lenovo Browser, and Lenovo App Store if not needed.
Control Panel > Programs > Uninstall a program
Select application > Uninstall
🧯 If You Can't Patch
- Restrict local access to systems through user account controls and physical security.
- Monitor for unusual application crashes or system instability as potential exploitation indicators.
🔍 How to Verify
Check if Vulnerable:
Check installed Lenovo application versions against the advisory; vulnerable if running outdated versions.Check Version:
For PC Manager: Check 'About' in application settings. For others: Control Panel > Programs > check version details.Verify Fix Applied:
Confirm applications are updated to versions listed as fixed in the Lenovo advisory.📡 Detection & Monitoring
Log Indicators:
- Application crash logs (Event Viewer > Windows Logs > Application)
- System crash/BSOD logs
Network Indicators:
- None - local exploitation only
SIEM Query:
EventID=1000 OR EventID=1001 OR EventID=41 (for Windows crash events) combined with process names containing 'Lenovo'