CVE-2024-30071
📋 TL;DR
This vulnerability in Windows Remote Access Connection Manager allows an authenticated attacker to read sensitive information from system memory. It affects Windows systems with Remote Access Connection Manager service enabled, potentially exposing credentials or other sensitive data.
💻 Affected Systems
- Windows Remote Access Connection Manager
📦 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
An authenticated attacker could extract sensitive information like credentials, encryption keys, or other privileged data from system memory, leading to lateral movement or privilege escalation.
Likely Case
Information disclosure of system or user data that could be used in further attacks, but requires local authenticated access.
If Mitigated
Minimal impact with proper access controls and network segmentation limiting authenticated user access to vulnerable systems.
🎯 Exploit Status
Requires authenticated access to the target system. No public exploit code available as of current knowledge.
🛠️ 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-2024-30071
Restart Required: Yes
Instructions:
1. Apply May 2024 Windows security updates via Windows Update. 2. For enterprise: Deploy through WSUS, SCCM, or Microsoft Update Catalog. 3. Restart affected systems after patch installation.
🔧 Temporary Workarounds
Disable Remote Access Connection Manager Service
windowsDisables the vulnerable service if not required for business operations
sc config RasMan start= disabled
sc stop RasMan
🧯 If You Can't Patch
- Restrict access to systems with Remote Access Connection Manager service to only authorized users
- Implement network segmentation to limit lateral movement potential from compromised accounts
🔍 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 RasMan process creation
- Unusual access patterns to Remote Access Connection Manager
Network Indicators:
- Unusual connections to systems with RasMan service from non-standard accounts
SIEM Query:
source="windows" AND (event_id=4688 AND process_name="svchost.exe" AND command_line="*RasMan*")