CVE-2024-4143
📋 TL;DR
This CVE describes a critical vulnerability in AMI BIOS firmware used by certain HP PC products that could allow attackers to execute arbitrary code. The vulnerability affects HP devices with specific AMI BIOS versions and requires physical or local administrative access to exploit. This is a high-severity vulnerability with a CVSS score of 9.8.
💻 Affected Systems
- HP PC products with AMI BIOS
⚠️ 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 allowing attackers to install persistent malware, steal sensitive data, or create backdoors that survive OS reinstallation.
Likely Case
Local privilege escalation allowing attackers to bypass security controls and gain administrative access to the system.
If Mitigated
Limited impact if proper access controls prevent unauthorized physical or local administrative access to vulnerable systems.
🎯 Exploit Status
Exploitation requires physical access or local administrative privileges. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Updated AMI BIOS firmware versions provided by HP
Vendor Advisory: https://support.hp.com/us-en/document/ish_10914391-10914417-16/hpsbhf03953
Restart Required: Yes
Instructions:
1. Identify affected HP PC models from HP advisory. 2. Download appropriate BIOS update from HP Support. 3. Run BIOS update utility. 4. Restart system to apply firmware update.
🔧 Temporary Workarounds
Restrict physical access
allLimit physical access to vulnerable systems to authorized personnel only
Enforce least privilege
allRestrict local administrative access to essential personnel only
🧯 If You Can't Patch
- Isolate vulnerable systems on separate network segments
- Implement strict physical security controls and access monitoring
🔍 How to Verify
Check if Vulnerable:
Check BIOS version in system information (F2 or DEL during boot) and compare with HP advisory listCheck Version:
wmic bios get smbiosbiosversion (Windows) or dmidecode -s bios-version (Linux)Verify Fix Applied:
Verify BIOS version after update matches patched version in HP advisory📡 Detection & Monitoring
Log Indicators:
- BIOS/UEFI firmware modification events
- Unauthorized physical access attempts
Network Indicators:
- Unusual outbound connections from BIOS/UEFI management interfaces
SIEM Query:
EventID=12 OR EventID=13 (Windows System events for firmware changes)