CVE-2024-38508
📋 TL;DR
This CVE describes a privilege escalation vulnerability in Lenovo XCC (XClarity Controller) interfaces that allows authenticated users with elevated privileges to execute arbitrary commands via command injection. Attackers could gain full system control by exploiting improper input validation in web or SSH captive shell interfaces. This affects organizations using vulnerable Lenovo server management controllers.
💻 Affected Systems
- Lenovo XClarity Controller (XCC)
⚠️ 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 compromise of the XCC controller allowing attacker to execute arbitrary commands with highest privileges, potentially gaining control over the managed server hardware and accessing sensitive data.
Likely Case
Privileged authenticated attacker escalates privileges to execute unauthorized commands on the XCC controller, potentially modifying configurations, accessing logs, or affecting server management functions.
If Mitigated
With proper access controls limiting administrative privileges and network segmentation, impact is limited to authorized administrative users who already have significant access.
🎯 Exploit Status
Exploitation requires authenticated access with elevated privileges. No public exploit code identified in provided references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Lenovo advisory LEN-156781 for specific fixed versions
Vendor Advisory: https://support.lenovo.com/us/en/product_security/LEN-156781
Restart Required: Yes
Instructions:
1. Access Lenovo XClarity Controller interface
2. Check current firmware version
3. Download appropriate firmware update from Lenovo support site
4. Apply firmware update following Lenovo documentation
5. Reboot XCC controller to complete installation
🔧 Temporary Workarounds
Restrict Administrative Access
allLimit XCC administrative access to only necessary personnel and implement strong authentication controls.
Network Segmentation
allIsolate XCC management interfaces from general network access and implement strict firewall rules.
🧯 If You Can't Patch
- Implement strict access controls to limit XCC administrative privileges to essential personnel only.
- Monitor XCC access logs for unusual administrative activity and implement network segmentation to isolate management interfaces.
🔍 How to Verify
Check if Vulnerable:
Check XCC firmware version against Lenovo advisory LEN-156781. If running affected version and exposed to authenticated privileged users, system is vulnerable.Check Version:
Check via XCC web interface under System Information or use SSH to connect and check firmware versionVerify Fix Applied:
Verify XCC firmware has been updated to version specified in Lenovo advisory as fixed. Confirm version change and test interface functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in XCC logs
- Multiple failed authentication attempts followed by successful privileged access
- Unexpected configuration changes to XCC settings
Network Indicators:
- Unusual traffic patterns to XCC management interfaces
- Multiple authentication attempts from single source
SIEM Query:
source="xcc_logs" AND (event_type="command_execution" OR event_type="privilege_escalation")