CVE-2024-26022

7.8 HIGH

📋 TL;DR

This vulnerability allows authenticated users with local access to Intel NUC devices to bypass UEFI security controls and escalate privileges. It affects systems running specific Intel UEFI Integrator Tools on Aptio V firmware. Attackers could gain elevated system access by exploiting improper access control mechanisms.

💻 Affected Systems

Products:
  • Intel NUC devices with specific UEFI firmware
Versions: Specific versions of Intel UEFI Integrator Tools on Aptio V firmware (check Intel advisory for exact versions)
Operating Systems: Any OS running on affected hardware
Default Config Vulnerable: ⚠️ Yes
Notes: Requires local authenticated access to the system. Affects physical Intel NUC devices with vulnerable firmware versions.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with administrative/root access, allowing installation of persistent malware, firmware modification, or disabling of security controls.

🟠

Likely Case

Local privilege escalation enabling attackers to bypass application restrictions, access sensitive data, or install unauthorized software.

🟢

If Mitigated

Limited impact if proper physical security controls prevent unauthorized local access and user accounts are properly managed.

🌐 Internet-Facing: LOW - Requires local authenticated access, not directly exploitable over network.
🏢 Internal Only: HIGH - Authenticated users with physical or remote desktop access could exploit this for privilege escalation.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires authenticated local access and knowledge of UEFI exploitation techniques. No public exploit code known at this time.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Intel advisory for specific firmware updates

Vendor Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01172.html

Restart Required: Yes

Instructions:

1. Visit Intel's security advisory page. 2. Identify your specific NUC model. 3. Download the updated firmware from Intel's support site. 4. Follow Intel's firmware update instructions for your device. 5. Reboot the system after update completion.

🔧 Temporary Workarounds

Restrict Physical Access

all

Prevent unauthorized local access to affected systems

Implement Least Privilege

all

Limit user accounts to only necessary privileges and monitor for privilege escalation attempts

🧯 If You Can't Patch

  • Implement strict physical security controls to prevent unauthorized local access
  • Monitor for unusual privilege escalation attempts and implement application whitelisting

🔍 How to Verify

Check if Vulnerable:

Check UEFI firmware version in BIOS/UEFI settings or using manufacturer tools, then compare with Intel's advisory

Check Version:

On Windows: wmic bios get smbiosbiosversion
On Linux: dmidecode -t bios

Verify Fix Applied:

Verify firmware version has been updated to patched version in BIOS/UEFI settings

📡 Detection & Monitoring

Log Indicators:

  • Unexpected BIOS/UEFI configuration changes
  • Privilege escalation attempts from standard user accounts
  • Unusual firmware access patterns

Network Indicators:

  • Not network exploitable - focus on local system monitoring

SIEM Query:

EventID=4688 OR ProcessName contains 'uefi' OR 'bios' AND User NOT IN (AdminUsers)

🔗 References

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