Description
A denial of service exists in Microsoft IIS Server when the optional request filtering feature improperly handles requests. An attacker who successfully exploited this vulnerability could perform a temporary denial of service against pages configured to use request filtering.
To exploit this vulnerability, an attacker could send a specially crafted request to a page utilizing request filtering.
The update addresses the vulnerability by changing the way certain requests are processed by the filter.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1803 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server, version 1903 (Server Core installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows 7 Service Pack 1 | 6.1.0 – < publication | publication |
| Microsoft | Windows Server 2008 R2 Service Pack 1 | 6.1.7601.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1809 | 10.0.0 – < publication, 10.0.17763.0 – < publication | publication |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – < publication | publication |
| Microsoft | Windows 8.1 | 6.3.0 – < publication | publication |
| Microsoft | Windows Server 2012 (Server Core installation) | 6.2.9200.0 – < publication | publication |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1507 | 10.0.10240.0 – < publication | publication |
| Microsoft | Windows 10 Version 1709 | 10.0.0 – < publication | publication |
| Microsoft | Windows 10 Version 1703 | 10.0.0 – < publication | publication |
| Microsoft | Windows Server, version 1803 (Server Core Installation) | 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – < publication | publication |
| Microsoft | Windows Server 2016 (Server Core installation) | 10.0.14393.0 – < publication | publication |
| Microsoft | Windows 10 Version 1607 | 10.0.14393.0 – < publication | publication |
| Microsoft | Windows 7 | 6.1.0 – < publication | publication |
| Microsoft | Windows Server 2008 Service Pack 2 (Server Core installation) | 6.0.6003.0 – < publication | publication |
| Microsoft | Windows Server 2008 R2 Service Pack 1 (Server Core installation) | 6.1.7601.0 – < publication | publication |
| Microsoft | Windows Server 2012 R2 | 6.3.9600.0 – < publication | publication |
| Microsoft | Windows 10 Version 1709 for 32-bit Systems | 10.0.0 – < publication | publication |
| Microsoft | Windows Server 2012 | 6.2.9200.0 – < publication | publication |
| Microsoft | Windows Server 2008 Service Pack 2 | 6.0.6003.0 – < publication, 6.0.0 – < publication | publication |
| Microsoft | Windows Server 2012 R2 (Server Core installation) | 6.3.9600.0 – < publication | publication |
| Microsoft | Windows Server 2016 | 10.0.14393.0 – < publication | publication |
| Microsoft | Windows Server 2008 R2 Systems Service Pack 1 | 6.1.0 – < publication | publication |
| Microsoft | Windows Server 2008 Service Pack 2 | 6.0.6003.0 – < publication | publication |
References
- Microsoft IIS Server Denial of Service Vulnerability vendor-advisory