Intrusion Prevention

MS.Windows.HTTP2.Reset.DoS

Description

This indicates an attack attempt to exploit a Denial of Service Vulnerability in Microsoft Windows Server.
A remote, unauthenticated attacker can exploit this vulnerability in a Windows HTTP/2 Server by sending crafted requests to the target server. Successful exploitation will cause the server process to abnormally terminate, resulting in a denial-of-service condition.
This signature will use track and rate feature. The default threshold for the signature is 100 attempts in 1 second.

Affected Products

Microsoft Windows 10
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Microsoft Windows Server version 1803 (Server Core Installation)
Microsoft Windows Server version 1903 (Server Core installation)

Impact

Denial of Service: Remote attackers can crash vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-9514

CVE References

CVE-2019-9514

Other References

2019-9514