Spoofing attack in Microsoft Endpoint Configuration Manager

1) Man-in-the-Middle (MitM) attack

EUVDB-ID: #VU67518

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-37972

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to the way Microsoft Endpoint Configuration Manager handles Kerberos authentication failures. The application attempts to use NTLM to authenticate even if disabled by the "Allow connection fallback to NTLM" option. A remote attacker can perform spoofing attack and extract victims credentials via NTLM connection.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Endpoint Configuration Manager: 2103 - 2203

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-37972
http://learn.microsoft.com/en-us/mem/configmgr/hotfix/2207/15498768

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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