Description
An information disclosure vulnerability exists in Azure Active Directory (AAD) Microsoft Account (MSA) during the login request session. An attacker who successfully exploited the vulnerability could take over a user's account.
To exploit the vulnerability, an attacker would have to trick a user into browsing to a specially crafted website, allowing the attacker to steal the user's token.
The security update addresses the vulnerability by correcting how MSA handles cookies.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 1703 | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1803 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server, version 1803 (Server Core Installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1809 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2019 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1709 for 32-bit Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1709 | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows Server, version 1903 (Server Core installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1507 | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1607 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2016 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 8.1 | 6.3.0 – < publication | publication |
| Microsoft | Windows Server 2012 R2 | 6.3.0 – < publication | publication |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.0 – < publication | publication |