CVE-2021-41361 Explained : Impact and Mitigation

Active Directory Federation Server Spoofing Vulnerability was published on 2021-10-13 with a base CVSS score of 5.4.

Understanding CVE-2021-41361

This CVE affects various Microsoft Windows Server versions, potentially allowing spoofing attacks.

What is CVE-2021-41361?

The Active Directory Federation Server Spoofing Vulnerability can lead to spoofing attacks in affected systems, impacting the integrity and confidentiality of the server.

The Impact of CVE-2021-41361

The vulnerability has a base CVSS score of 5.4 (Medium severity), indicating a moderate impact if exploited. It could allow attackers to conduct spoofing attacks on Windows Server systems.

Technical Details of CVE-2021-41361

This section provides specific technical details regarding the vulnerability.

Vulnerability Description

The vulnerability allows spoofing attacks on Active Directory Federation Servers, compromising system integrity and data confidentiality.

Affected Systems and Versions

Windows Server 2019 (10.0.0 to 10.0.17763.2237)
Windows Server 2022 (10.0.0 to 10.0.20348.288)
Windows Server version 2004 (10.0.0 to 10.0.19041.1288)
Windows Server version 20H2 (10.0.0 to 10.0.19041.1288)
Windows Server 2016 (10.0.0 to 10.0.14393.4704)
Windows Server 2016 (Server Core installation) (10.0.0 to 10.0.14393.4704)

Exploitation Mechanism

The vulnerability can be exploited by attackers to conduct spoofing attacks through the Active Directory Federation server, potentially leading to unauthorized access and data manipulation.

Mitigation and Prevention

To mitigate the risk associated with CVE-2021-41361, follow these guidelines:

Immediate Steps to Take

Apply security updates provided by Microsoft promptly.
Monitor for any suspicious activity related to spoofing within the network.
Implement robust access controls and authentication mechanisms.

Long-Term Security Practices

Regularly update and patch server systems to address security vulnerabilities.
Conduct security assessments and audits to identify and remediate potential weaknesses.

Patching and Updates

Microsoft has released security updates addressing the spoofing vulnerability. Ensure systems are updated to the latest patched versions.