CVE-2020-0761 Active Directory Remote Code Execution Vulnerability

High 8.8 Published Updated

An authenticated attacker can exploit a memory handling flaw in Active Directory integrated DNS to execute arbitrary code with Local System privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-0761?

CVE-2020-0761 is a high-severity memory corruption vulnerability in Microsoft Windows Server 2008, published on 11 Sep 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

<p>A remote code execution vulnerability exists when Active Directory integrated DNS (ADIDNS) mishandles objects in memory. An authenticated attacker who successfully exploited the vulnerability could run arbitrary code in the context of the Local System Account</p> <p>To exploit the vulnerability, an authenticated attacker could send malicious requests to an Active Directory integrated DNS (ADIDNS) server.</p> <p>The update addresses the vulnerability by correcting how Active Directory integrated DNS (ADIDNS) handles objects in memory.</p>

Which versions are affected by CVE-2020-0761?

It affects 4 products.

Products include Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019.

How do I fix CVE-2020-0761?

No fix has been published for CVE-2020-0761 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-0761 being exploited?

There is no known exploitation of CVE-2020-0761 in the wild and no public exploit code.

All Microsoft Windows Server 2008 vulnerabilities

Sources

Also known as GHSA-4m64-74mc-www8.

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