medium5.0
CVE-2020-0837
<p>An elevation of privilege vulnerability exists when Active Directory Federation Services (ADFS) improperly handles multi-factor authentication requests.
Impact
<p>An elevation of privilege vulnerability exists when Active Directory Federation Services (ADFS) improperly handles multi-factor authentication requests. An attacker who successfully exploited this vulnerability could bypass some, but not all, of the authentication factors.</p> <p>To exploit this vulnerability, an attacker could send a specially crafted authentication request.</p> <p>This security update corrects how ADFS handles multi-factor authentication requests.</p>
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 | Versions 1607, 1809, 1903, 1909, 2004 |
| Microsoft | Windows Server 2016 | All versions Versions 1903, 1909, 2004 |
| Microsoft | Windows Server 2019 | All versions |