Windows KDC Proxy Remote Code Execution Vulnerability
CVE-2024-43639

9.8CRITICAL

Key Information:

Vendor
Microsoft
Status
Windows Server 2025
Windows Server 2025 (server Core Installation)
Windows Server 2019
Windows Server 2019 (server Core Installation)
Vendor
CVE Published:
12 November 2024

Badges

📈 Score: 1,040👾 Exploit Exists📰 News Worthy

What is CVE-2024-43639?

CVE-2024-43639 is a serious vulnerability affecting the Windows KDC Proxy, a component integral to Microsoft's Active Directory and security infrastructure. This vulnerability allows remote code execution, meaning attackers could potentially gain control over affected systems from a distance. The exploitation of this flaw poses significant risks to organizations that rely on Windows environments for managing critical applications and sensitive data.

Technical Details

This vulnerability resides within the KDC Proxy service, which is responsible for authenticating users and granting access to network resources in a secure manner. An attacker exploiting this flaw can execute arbitrary code on the vulnerable system, leading to unauthorized access and manipulation of critical system functionalities.

Potential Impact of CVE-2024-43639

  1. Unauthorized Access and Control: The primary concern surrounding this vulnerability is the potential for unauthorized users to gain administrative control over affected systems, enabling them to alter configurations, access sensitive data, or disrupt services.

  2. Data Breaches: With the ability to execute code remotely, attackers could extract sensitive information stored within the organization's systems, leading to serious data breaches and compromising the confidentiality of business-critical information.

  3. Operational Disruption: Exploiting this vulnerability could result in significant operational disruptions as malicious actors could manipulate essential systems, leading to downtime, loss of productivity, and increased recovery costs.

Affected Version(s)

Windows Server 2012 (Server Core installation) x64-based Systems 6.2.9200.0 < 6.2.9200.25165

Windows Server 2012 R2 (Server Core installation) x64-based Systems 6.3.9600.0 < 6.3.9600.22267

Windows Server 2012 R2 x64-based Systems 6.3.9600.0 < 6.3.9600.22267

News Articles

favicon imageZero Day Initiative

Zero Day Initiative — CVE-2024-43639: Remote Code Execution in Microsoft Windows KDC Proxy

In this excerpt of a Trend Micro Vulnerability Research Service vulnerability report, Simon Humbert and Guy Lederfein of the Trend Micro Research Team detail a recently patched code execution vulnerability in the Microsoft Windows Key Distribution Center (KDC) Proxy. This bug was originally discov

5 days ago

favicon imageTechRepublic

Patch Tuesday: Four Critical Vulnerabilities Paved Over

The November 2024 Microsoft updates let Windows 11 users remap the Copilot button.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • 📰

    First article discovered by TechRepublic

  • Vulnerability published

.