CVE-2024-49083
📋 TL;DR
This CVE describes an elevation of privilege vulnerability in the Windows Mobile Broadband Driver. It allows an authenticated attacker to gain SYSTEM-level privileges by exploiting improper memory handling. Affects Windows systems with mobile broadband hardware or drivers installed.
💻 Affected Systems
- Windows Mobile Broadband Driver
📦 What is this software?
Windows 10 1809 by Microsoft
Windows 10 1809 by Microsoft
Windows 10 21h2 by Microsoft
Windows 10 22h2 by Microsoft
Windows 11 22h2 by Microsoft
Windows 11 23h2 by Microsoft
Windows 11 24h2 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains full SYSTEM privileges, enabling complete system compromise, data theft, persistence installation, and lateral movement.
Likely Case
Local authenticated attacker escalates privileges to install malware, modify system settings, or bypass security controls.
If Mitigated
With proper privilege separation and endpoint protection, impact limited to isolated system compromise.
🎯 Exploit Status
Requires local authenticated access; exploitation involves memory corruption techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply latest Windows security updates from Microsoft
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49083
Restart Required: Yes
Instructions:
1. Open Windows Update settings
2. Check for updates
3. Install all available security updates
4. Restart system when prompted
🔧 Temporary Workarounds
Disable Mobile Broadband Interface
windowsDisable mobile broadband hardware if not required
netsh mbn set conmode=disabled
🧯 If You Can't Patch
- Restrict local user access to systems with mobile broadband hardware
- Implement application control policies to prevent unauthorized code execution
🔍 How to Verify
Check if Vulnerable:
Check Windows Update history for missing security patches; verify mobile broadband driver is present in Device ManagerCheck Version:
wmic os get caption,version,buildnumberVerify Fix Applied:
Verify Windows Update KB number from Microsoft advisory is installed via 'wmic qfe list' or Settings > Update History📡 Detection & Monitoring
Log Indicators:
- Event ID 4688 with unusual parent processes
- Driver load events for mobile broadband components
- Privilege escalation attempts in security logs
Network Indicators:
- None - local exploitation only
SIEM Query:
EventID=4688 AND (NewProcessName LIKE '%*\system32\*' OR ParentProcessName LIKE '%*\system32\*') AND CommandLine CONTAINS 'mobile' OR 'broadband'