CVE-2024-41167
📋 TL;DR
This CVE describes an improper input validation vulnerability in UEFI firmware on specific Intel server boards. A privileged user with local access could potentially exploit this to escalate privileges. Only Intel Server Board M10JNP2SB Family systems are affected.
💻 Affected Systems
- Intel Server Board M10JNP2SB Family
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
A privileged attacker could gain full system control, bypass security controls, install persistent malware in firmware, and compromise the entire server.
Likely Case
A malicious administrator or compromised privileged account could escalate privileges to gain deeper system access or persistence.
If Mitigated
With proper access controls and monitoring, exploitation would be limited to authorized privileged users and detectable through security monitoring.
🎯 Exploit Status
Exploitation requires privileged local access and knowledge of UEFI firmware exploitation techniques. No public exploit code known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware update specified in Intel advisory INTEL-SA-01175
Vendor Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01175.html
Restart Required: Yes
Instructions:
1. Download firmware update from Intel support site. 2. Follow Intel's firmware update procedures for M10JNP2SB boards. 3. Apply firmware update. 4. Reboot server to activate new firmware.
🔧 Temporary Workarounds
Restrict physical and console access
allLimit physical access to servers and restrict console/management interface access to authorized personnel only.
Implement strict privilege management
allApply principle of least privilege and monitor privileged user activities on affected systems.
🧯 If You Can't Patch
- Implement strict physical security controls and access monitoring for affected servers
- Segment affected servers in isolated network zones and monitor for suspicious privileged activity
🔍 How to Verify
Check if Vulnerable:
Check server BIOS/UEFI firmware version against Intel's advisory. Use server management tools or BIOS setup to view firmware version.Check Version:
Platform-specific: Use server management tools (iDRAC, iLO, IPMI) or check during POST/BIOS setupVerify Fix Applied:
Verify firmware version has been updated to patched version specified in Intel advisory INTEL-SA-01175.📡 Detection & Monitoring
Log Indicators:
- Unexpected firmware modification attempts
- Privileged user accessing UEFI/BIOS settings
- System reboots with firmware update activity
Network Indicators:
- Unusual outbound connections from server management interfaces
SIEM Query:
Search for: 'firmware update', 'BIOS modification', 'UEFI access' events from server management logs