ICMP6: Microsoft Windows IPv6 Stack Denial-Of-Service
This signature detects attempts to exploit a known vulnerability against Windows IPv6 Stack. A successful attack can result in a denial-of-service condition.
Extended Description
A denial of service vulnerability exists when the Windows TCP/IP stack improperly handles ICMPv6 Router Advertisement packets. An attacker who successfully exploited this vulnerability could cause a target system to stop responding. To exploit this vulnerability, an attacker would have to send specially crafted ICMPv6 Router Advertisement packets to a remote Windows computer. The vulnerability would not allow an attacker to execute code or to elevate user rights directly. The update addresses the vulnerability by correcting how the Windows TCP/IP stack handles ICMPv6 Router Advertisement packets.
Affected Products
Microsoft windows_server_2019
References
CVE: CVE-2020-16899
Short Name
ICMP6:CVE-2020-16899-DOS
Severity
Major
Recommended
True
Recommended Action
Drop
Category
ICMP6
Keywords
CVE-2020-16899 Denial-Of-Service IPv6 Microsoft Stack Windows
Release Date
10/12/2020
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3665
False Positive
Unknown
Vendors
Microsoft
CVSS Score
7.8