ADFS Security Feature Bypass Vulnerability
CVE-2018-8340 is fixed in 6 products on 1 platform, first by KB4343887, released August 14, 2018. It is not reported as exploited. Patch Radar priority: Routine.
<p>A security feature bypass vulnerability exists when Active Directory Federation Services (ADFS) improperly handles multi-factor authentication requests.</p> <p>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.</p> <p>This security update corrects how ADFS handles multi-factor authentication requests.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows Server 2012 R2 | KB4343888 | Aug 14, 2018 | |
| Windows Server 2012 R2 | KB4343898 | Aug 14, 2018 | |
| Windows Server 2012 R2 (Server Core installation) | KB4343888 | Aug 14, 2018 | |
| Windows Server 2012 R2 (Server Core installation) | KB4343898 | Aug 14, 2018 | |
| Windows Server 2016 | 14393.2430 | KB4343887 | Aug 14, 2018 |
| Windows Server 2016 (Server Core installation) | 14393.2430 | KB4343887 | Aug 14, 2018 |
| Windows Server, version 1709 (Server Core Installation) | 16299.611 | KB4343897 | Aug 14, 2018 |
| Windows Server, version 1803 (Server Core Installation) | 17134.228 | KB4343909 | Aug 14, 2018 |
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