<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>
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Msft | — | 2020-09 Cumulative Update for Microsoft Windows Server 2019, version 1809 (KB4570333)2020-09 Cumulative Update for Windows Server, version 1903 for x64-based Systems (KB4574727)2020-09 Cumulative Update for Windows Server, version 2004 for x64-based Systems (KB4571756)2020-09 Cumulative Update for Microsoft Windows 10, version 1809 (KB4570333)2020-09 Cumulative Update for Microsoft Windows 10, version 1607 (KB4577015)2020-09 Cumulative Update for Windows Server, version 1909 for x64-based Systems (KB4574727)2020-09 Cumulative Update for Microsoft Windows 10, version 2004 (KB4571756)2020-09 Cumulative Update for Microsoft Windows 10, version 1903 (KB4574727)2020-09 Cumulative Update for Microsoft Windows 10, version 1909 (KB4574727)2020-09 Cumulative Update for Microsoft Windows Server 2016, version 1607 (KB4577015) | Sep 8, 2020 | Sep 8, 2020 |
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