CVE-2024-37982
📋 TL;DR
This vulnerability allows attackers to bypass security features in Windows Resume Extensible Firmware Interface (Resume EFI) during system resume operations. It affects Windows systems with Resume EFI enabled, potentially allowing unauthorized access or privilege escalation during the boot/resume process.
💻 Affected Systems
- Microsoft Windows
📦 What is this software?
Windows 10 1507 by Microsoft
Windows 10 1507 by Microsoft
Windows 10 1607 by Microsoft
Windows 10 1607 by Microsoft
Windows 10 1809 by Microsoft
Windows 10 21h2 by Microsoft
Windows 10 22h2 by Microsoft
Windows 11 21h2 by Microsoft
Windows 11 22h2 by Microsoft
Windows 11 23h2 by Microsoft
Windows 11 24h2 by Microsoft
Windows 11 24h2 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise via Secure Boot bypass, allowing persistent malware installation or unauthorized access to encrypted data during resume operations.
Likely Case
Local privilege escalation or security feature bypass during system resume, potentially enabling attackers to disable security controls or gain elevated privileges.
If Mitigated
Limited impact with proper Secure Boot configurations and physical security controls in place.
🎯 Exploit Status
Requires local access and knowledge of system resume operations. Exploitation likely requires physical access or local system compromise first.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: July 2024 security updates (KB5040435 for Windows 11, KB5040431 for Windows 10, etc.)
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-37982
Restart Required: Yes
Instructions:
1. Open Windows Update Settings. 2. Check for updates. 3. Install July 2024 security updates. 4. Restart system when prompted.
🔧 Temporary Workarounds
Disable Resume EFI
windowsDisable the Resume Extensible Firmware Interface feature in UEFI/BIOS settings
Enable Secure Boot
windowsEnsure Secure Boot is properly configured and enabled in UEFI firmware
🧯 If You Can't Patch
- Implement strict physical security controls to prevent unauthorized physical access to systems
- Enable BitLocker with TPM protection and require pre-boot authentication
🔍 How to Verify
Check if Vulnerable:
Check Windows Update history for July 2024 security updates. If not installed, system is vulnerable.Check Version:
wmic os get caption, version, buildnumberVerify Fix Applied:
Verify July 2024 security updates are installed via Windows Update history or by checking system version.📡 Detection & Monitoring
Log Indicators:
- Unexpected system resume events
- Secure Boot policy violations in Event Logs
- UEFI firmware modification attempts
Network Indicators:
- None - local exploit only
SIEM Query:
EventID=12 OR EventID=13 (System startup/shutdown) with suspicious timing or from unauthorized locations