CVE-2024-11679
📋 TL;DR
A local input validation weakness in the TpmSetup module for legacy Lenovo System x servers allows attackers with elevated privileges to read memory contents. This affects administrators or users with high-level access on vulnerable systems. The vulnerability enables information disclosure but requires local access with elevated privileges.
💻 Affected Systems
- Lenovo System x servers with TpmSetup module
⚠️ 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
An attacker with local administrative access could read sensitive data from memory, potentially exposing credentials, encryption keys, or other confidential information stored in RAM.
Likely Case
A malicious administrator or compromised privileged account reads limited memory contents, potentially exposing some system information but not full system compromise.
If Mitigated
With proper privilege separation and monitoring, impact is limited to authorized administrators who shouldn't be reading arbitrary memory anyway.
🎯 Exploit Status
Requires local access with elevated privileges, specific knowledge of the TpmSetup module
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: As specified in Lenovo advisory LEN-193044
Vendor Advisory: https://support.lenovo.com/us/en/product_security/LEN-193044
Restart Required: Yes
Instructions:
1. Review Lenovo advisory LEN-193044 for affected products. 2. Download appropriate firmware update from Lenovo support site. 3. Apply firmware update following Lenovo's instructions. 4. Reboot system to complete installation.
🔧 Temporary Workarounds
Restrict administrative access
allLimit the number of users with administrative privileges on affected systems
Monitor privileged user activity
allImplement logging and monitoring for administrative actions on vulnerable systems
🧯 If You Can't Patch
- Implement strict access controls to limit who has administrative privileges
- Monitor systems for unusual administrative activity and memory access patterns
🔍 How to Verify
Check if Vulnerable:
Check system model and firmware version against Lenovo advisory LEN-193044Check Version:
Check through Lenovo XClarity Controller or system management interface for firmware versionVerify Fix Applied:
Verify firmware version has been updated to patched version specified in Lenovo advisory📡 Detection & Monitoring
Log Indicators:
- Unusual TpmSetup module access
- Multiple failed or unusual administrative operations
Network Indicators:
- Not network exploitable - focus on local activity monitoring
SIEM Query:
Search for administrative user accessing TpmSetup functions or unusual memory read operations