Spoofing attack in Microsoft Active Directory Federation Server



Published: 2021-10-12
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-41361
CWE-ID CWE-451
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Spoofing attack

EUVDB-ID: #VU57310

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-41361

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data in Active Directory Federation Server. A remote authenticated attacker can spoof page content.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2016, 2019, 2019 20H2, 2019 1709, 2019 1803, 2019 1903, 2019 1909, 2019 2004

CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41361

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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