CVE-2024-49124
📋 TL;DR
This vulnerability allows remote code execution on systems running vulnerable LDAP clients. An attacker could execute arbitrary code with the privileges of the LDAP client process. This affects systems using Microsoft's LDAP client implementation.
💻 Affected Systems
- Microsoft Windows LDAP Client
📦 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 1809 by Microsoft
Windows 10 21h2 by Microsoft
Windows 10 22h2 by Microsoft
Windows 11 22h2 by Microsoft
Windows 11 24h2 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise leading to data theft, lateral movement, and persistent backdoor installation.
Likely Case
Privilege escalation leading to unauthorized access to sensitive directory information and system resources.
If Mitigated
Limited impact due to network segmentation and least privilege configurations.
🎯 Exploit Status
CWE-362 indicates a race condition vulnerability, which typically requires precise timing for exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Update for specific patch version
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49124
Restart Required: Yes
Instructions:
1. Apply latest Windows security updates from Microsoft. 2. Restart affected systems. 3. Verify patch installation via Windows Update history.
🔧 Temporary Workarounds
Network Segmentation
allRestrict LDAP client traffic to trusted LDAP servers only
LDAP Signing Enforcement
windowsEnable LDAP channel binding and LDAP signing to prevent man-in-the-middle attacks
Group Policy: Computer Configuration > Policies > Windows Settings > Security Settings > Local Policies > Security Options > Domain controller: LDAP server signing requirements = Require signing
🧯 If You Can't Patch
- Implement strict network access controls to limit LDAP client connections
- Monitor for unusual LDAP client activity and failed authentication attempts
🔍 How to Verify
Check if Vulnerable:
Check if system is running affected Windows version and has LDAP client enabledCheck Version:
wmic os get caption, version, buildnumberVerify Fix Applied:
Verify Windows Update history shows the security patch for CVE-2024-49124 is installed📡 Detection & Monitoring
Log Indicators:
- Unusual LDAP client process creation
- Failed LDAP authentication attempts from unexpected sources
- Process execution from LDAP client context
Network Indicators:
- Unusual LDAP traffic patterns
- LDAP connections to non-standard ports
- LDAP traffic from unexpected IP addresses
SIEM Query:
EventID=4688 AND ProcessName LIKE '%ldap%' AND CommandLine CONTAINS suspicious_pattern