CVE-2023-28737
📋 TL;DR
This vulnerability in Intel Aptio V UEFI Firmware Integrator Tools allows authenticated local users to potentially escalate privileges due to improper initialization. It affects systems using these firmware development tools, primarily impacting developers and organizations building UEFI firmware. Successful exploitation could compromise system security at the firmware level.
💻 Affected Systems
- Intel Aptio V UEFI Firmware Integrator Tools
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker gains full system control at firmware level, potentially installing persistent malware that survives OS reinstallation and bypasses security controls.
Likely Case
Privileged user exploits the vulnerability to gain elevated firmware access, compromising system integrity and potentially installing backdoors.
If Mitigated
With proper access controls and monitoring, impact is limited to unauthorized firmware modifications that can be detected and remediated.
🎯 Exploit Status
Requires authenticated local access and knowledge of firmware development. Exploitation likely requires specialized knowledge of UEFI firmware internals.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to latest version as specified in Intel advisory
Vendor Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00908.html
Restart Required: Yes
Instructions:
1. Check Intel advisory for affected versions. 2. Update to latest firmware version from vendor. 3. Update UEFI firmware on affected systems. 4. Reboot systems to apply firmware update.
🔧 Temporary Workarounds
Restrict local access
allLimit physical and remote local access to systems with vulnerable firmware
Implement least privilege
allEnsure users only have necessary privileges to reduce attack surface
🧯 If You Can't Patch
- Implement strict access controls to limit who can access systems locally
- Monitor for unusual firmware modification attempts and system behavior changes
🔍 How to Verify
Check if Vulnerable:
Check firmware version against Intel advisory. Use system firmware information tools or BIOS/UEFI settings to identify firmware version.Check Version:
On Windows: wmic bios get smbiosbiosversion
On Linux: dmidecode -t biosVerify Fix Applied:
Verify firmware version has been updated to patched version specified in Intel advisory. Confirm system boots with updated firmware.📡 Detection & Monitoring
Log Indicators:
- Unexpected firmware modification events
- Unauthorized access to firmware settings
- System boot anomalies
Network Indicators:
- Local authentication attempts followed by system behavior changes
- Unusual local network activity from affected systems
SIEM Query:
Search for firmware modification events, local privilege escalation attempts, or unauthorized BIOS/UEFI access logs