CVE-2024-4762
📋 TL;DR
This vulnerability allows a local attacker to escalate privileges through improper validation in the firmware update mechanism of LADM and LDCC components. It affects Lenovo systems with vulnerable firmware versions. Attackers must already have local access to the system to exploit this flaw.
💻 Affected Systems
- Lenovo systems with LADM (Lenovo Auto Driver Management) and LDCC (Lenovo Device Control Center) components
⚠️ 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 administrative privileges, allowing installation of persistent malware, data theft, and lateral movement within the network.
Likely Case
Local privilege escalation from standard user to administrator/root, enabling unauthorized access to sensitive data and system configuration changes.
If Mitigated
Limited impact with proper access controls and monitoring, though still allowing unauthorized privilege elevation within the compromised account's scope.
🎯 Exploit Status
Requires local access and some technical knowledge to exploit the firmware update validation flaw. No public exploit code available at time of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Lenovo advisory LEN-174319 for specific fixed firmware versions
Vendor Advisory: https://support.lenovo.co/us/en/product_security/LEN-174319
Restart Required: Yes
Instructions:
1. Visit Lenovo support site and search for LEN-174319. 2. Identify your specific system model. 3. Download and install the latest firmware update. 4. Restart the system to apply changes.
🔧 Temporary Workarounds
Restrict local access
allLimit physical and remote local access to affected systems to authorized personnel only
Disable unnecessary firmware update services
windowsTemporarily disable LADM/LDCC services if not required for operations
sc config "ServiceName" start= disabled
sc stop "ServiceName"
🧯 If You Can't Patch
- Implement strict access controls and monitor for unusual privilege escalation attempts
- Segment affected systems from critical network resources to limit lateral movement potential
🔍 How to Verify
Check if Vulnerable:
Check system firmware version against Lenovo's advisory LEN-174319. Use Lenovo System Update or commercial tools to identify installed firmware versions.Check Version:
wmic bios get smbiosbiosversion (Windows) or dmidecode -t bios (Linux) for BIOS version; check Lenovo tools for component-specific versionsVerify Fix Applied:
Verify firmware version has been updated to the patched version specified in Lenovo's advisory. Confirm LADM/LDCC components are running updated versions.📡 Detection & Monitoring
Log Indicators:
- Unexpected firmware update attempts
- Privilege escalation events in security logs
- Unauthorized service modifications
Network Indicators:
- Unusual outbound connections from affected systems post-exploitation
SIEM Query:
EventID=4688 AND (ProcessName LIKE '%firmware%' OR ProcessName LIKE '%LADM%' OR ProcessName LIKE '%LDCC%') AND NewProcessName LIKE '%cmd%' OR NewProcessName LIKE '%powershell%'