CVE-2024-30079
📋 TL;DR
This vulnerability allows an authenticated attacker to elevate privileges on a Windows system by exploiting a flaw in the Remote Access Connection Manager service. It affects Windows systems with this service enabled, potentially allowing attackers to gain SYSTEM-level access. This impacts Windows servers and workstations where the service is running.
💻 Affected Systems
- Microsoft Windows
📦 What is this software?
Windows 10 1507 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
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains SYSTEM privileges, enabling complete system compromise, installation of malware, credential theft, and lateral movement across the network.
Likely Case
Authenticated attacker elevates from standard user to administrator/SYSTEM privileges to install backdoors, steal sensitive data, or disable security controls.
If Mitigated
With proper access controls and monitoring, impact is limited to isolated systems with rapid detection and containment.
🎯 Exploit Status
Requires authenticated access to the target system. No public exploit code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: May 2024 security updates (KB5037771 for Windows 11, KB5037768 for Windows 10, etc.)
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-30079
Restart Required: Yes
Instructions:
1. Apply the May 2024 Windows security updates from Windows Update. 2. For enterprise environments, deploy updates via WSUS, SCCM, or Intune. 3. Restart affected systems after patch installation.
🔧 Temporary Workarounds
Disable Remote Access Connection Manager Service
windowsDisables the vulnerable service to prevent exploitation
sc config RasMan start= disabled
sc stop RasMan
🧯 If You Can't Patch
- Restrict user access to systems with Remote Access Connection Manager service running
- Implement network segmentation to limit lateral movement from potentially compromised systems
🔍 How to Verify
Check if Vulnerable:
Check if Remote Access Connection Manager service is running: sc query RasManCheck Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify May 2024 security updates are installed: wmic qfe list | findstr "KB5037771 KB5037768"📡 Detection & Monitoring
Log Indicators:
- Event ID 4688 with process creation from RasMan service
- Unexpected privilege escalation events in security logs
- Service control manager events related to RasMan service
Network Indicators:
- Unusual outbound connections from systems with RasMan service
- Lateral movement attempts from previously low-privilege accounts
SIEM Query:
EventID=4688 AND (NewProcessName="*\system32\*" OR ParentProcessName="*\svchost.exe*") AND CommandLine="*RasMan*"