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.
| Software | From | Fixed in |
|---|---|---|
| microsoft / windows_server_2008 | r2-sp1 | r2-sp1.x |
| microsoft / windows_server_2012 | r2 | r2.x |
| microsoft / windows_10 | 1607 | 1607.x |
| microsoft / windows_server_2008 | --sp2 | --sp2.x |
| microsoft / windows_7 | --sp1 | --sp1.x |
| microsoft / windows_10 | 1703 | 1703.x |
| microsoft / windows_10 | 1709 | 1709.x |
| microsoft / windows_10 | 1803 | 1803.x |
| microsoft / windows_server_2016 | 1803 | 1803.x |
| microsoft / windows_10 | 1809 | 1809.x |
| microsoft / windows_server_2016 | 1903 | 1903.x |
| microsoft / windows_10 | 1903 | 1903.x |