CVE-2020-16863 Windows Remote Desktop Service Denial of Service Vulnerability
An attacker can cause the Windows Remote Desktop Service to stop responding by sending specially crafted RDP requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-16863?
CVE-2020-16863 is a high-severity denial of service vulnerability in Microsoft Windows 7, published on 16 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
<p>A denial of service vulnerability exists in Windows Remote Desktop Service when an attacker connects to the target system using RDP and sends specially crafted requests. An attacker who successfully exploited this vulnerability could cause the Remote Desktop Service on the target system to stop responding.</p> <p>To exploit this vulnerability, an attacker would need to run a specially crafted application against a server which provides Remote Desktop Service.</p> <p>The update addresses the vulnerability by correcting how Remote Desktop Service handles connection requests.</p>
Which versions are affected by CVE-2020-16863?
It affects 2 products.
Products include Microsoft Windows 7, Microsoft Windows Server 2008.
How do I fix CVE-2020-16863?
No fix has been published for CVE-2020-16863 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-16863 being exploited?
There is no known exploitation of CVE-2020-16863 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 7
- CVE-2015-1635 Microsoft HTTP.sys Remote Code Execution
- CVE-2015-2360 Microsoft Win32k Privilege Escalation
- CVE-2014-6324 Microsoft Kerberos Key Distribution Center (KDC) Privilege Escalation
- CVE-2014-6332 Microsoft Windows Object Linking & Embedding (OLE) Automation Array Remote Code Execution
- CVE-2014-4148 Microsoft Windows Remote Code Execution
Sources
Also known as GHSA-69gr-hfqx-6mvx.