Endpoint Vulnerability

Microsoft: ADFS Spoofing Vulnerability

Description

A spoofing vulnerability exists when Active Directory Federation Services (ADFS) improperly handles multi-factor authentication requests. To exploit this vulnerability, an attacker could send a specially crafted authentication request. An attacker who successfully exploited this vulnerability could bypass some, but not all, of the authentication factors. This security update corrects how ADFS handles multi-factor authentication requests.

Affected Products

Windows Server, version 2004 (Server Core installation),Windows Server, version 1903 (Server Core installation),Windows Server 2016,Windows 10,Windows Server, version 1909 (Server Core installation),Windows Server 2019

References

CVE-2020-0837,