Zero-day vulnerability in Windows

Man-in-the-Middle (MitM) attack

Vulnerability details

Advisory: SB2022051007 - Spoofing attack in Microsoft Windows LSA

Vulnerable component: Windows

CVE-ID: CVE-2022-26925

CVSSv3 score: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

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


The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists within the Windows LSA service. A remote attacker can call a method on the LSARPC interface and coerce the domain controller to authenticate to the attacker using NTLM. As a result, an attacker can obtain credentials and compromise the affected system via the NTLM Relay Attack.

Note, the vulnerability is being actively exploited in the wild.

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