CVE-2024-24582
📋 TL;DR
This vulnerability allows a privileged user to escalate privileges via local access due to improper input validation in the XmlCli feature of UEFI firmware for certain Intel processors. It affects systems with vulnerable Intel processors and UEFI firmware. Exploitation requires local access with existing privileges.
💻 Affected Systems
- Intel processors with vulnerable UEFI firmware
⚠️ 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
A privileged attacker could gain full system control, bypass security boundaries, and potentially compromise the entire system including firmware persistence.
Likely Case
Privileged users (like administrators or compromised accounts) could escalate to higher privileges, potentially gaining kernel-level access.
If Mitigated
With proper access controls and least privilege principles, impact is limited to authorized users only.
🎯 Exploit Status
Requires local access and existing privileges. Exploitation likely involves crafting malicious XML input to the XmlCli feature.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: UEFI firmware updates from system/device manufacturers
Vendor Advisory: https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01139.html
Restart Required: Yes
Instructions:
1. Check Intel advisory for affected processors. 2. Contact your system/device manufacturer for UEFI firmware updates. 3. Apply UEFI firmware update following manufacturer instructions. 4. Reboot system to activate new firmware.
🔧 Temporary Workarounds
Restrict local access
allLimit physical and remote local access to vulnerable systems to trusted users only
Implement least privilege
allEnsure users have only necessary privileges to reduce attack surface
🧯 If You Can't Patch
- Isolate vulnerable systems in separate network segments
- Implement strict access controls and monitoring for privileged accounts
🔍 How to Verify
Check if Vulnerable:
Check system BIOS/UEFI version against manufacturer's patched versions. Use 'dmidecode -t bios' on Linux or 'wmic bios get smbiosbiosversion' on Windows.Check Version:
Linux: dmidecode -t bios | grep Version; Windows: wmic bios get smbiosbiosversionVerify Fix Applied:
Verify UEFI firmware version matches manufacturer's patched version after update.📡 Detection & Monitoring
Log Indicators:
- Unexpected UEFI/BIOS access attempts
- Privilege escalation events in system logs
- Unusual XML parsing in firmware context
Network Indicators:
- Not network exploitable - focus on local system monitoring
SIEM Query:
Search for privilege escalation events or unexpected firmware access in system logs