CVE-2020-0856

Active Directory Information Disclosure Vulnerability

Description

<p>An information disclosure vulnerability exists when Active Directory integrated DNS (ADIDNS) mishandles objects in memory. An authenticated attacker who successfully exploited this vulnerability would be able to read sensitive information about the target system.</p> <p>To exploit this condition, an authenticated attacker would need to send a specially crafted request to the AD|DNS service. Note that the information disclosure vulnerability by itself would not be sufficient for an attacker to compromise a system. However, an attacker could combine this vulnerability with additional vulnerabilities to further exploit the system.</p> <p>The update addresses the vulnerability by correcting how Active Directory integrated DNS (ADIDNS) handles objects in memory.</p>

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 18.82% Top 10%
Vendor Advisory microsoft.com
Affected: Microsoft Windows Server 2019
Affected: Microsoft Windows Server 2019 (Server Core installation)
Affected: Microsoft Windows Server, version 1909 (Server Core installation)
Affected: Microsoft Windows Server, version 1903 (Server Core installation)
Affected: Microsoft Windows Server version 2004
Affected: Microsoft Windows Server 2016
Affected: Microsoft Windows Server 2016 (Server Core installation)
Affected: Microsoft Windows Server 2008 Service Pack 2
Affected: Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)
Affected: Microsoft Windows Server 2008 Service Pack 2
Affected: Microsoft Windows Server 2008 R2 Service Pack 1
Affected: Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)
Affected: Microsoft Windows Server 2012
Affected: Microsoft Windows Server 2012 (Server Core installation)
Affected: Microsoft Windows Server 2012 R2
Affected: Microsoft Windows Server 2012 R2 (Server Core installation)
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2020-0856?
CVE-2020-0856 has been scored as a medium severity vulnerability.
How to fix CVE-2020-0856?
To fix CVE-2020-0856, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-0856 being actively exploited in the wild?
It is possible that CVE-2020-0856 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~19% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-0856?
CVE-2020-0856 affects Microsoft Windows Server 2019, Microsoft Windows Server 2019 (Server Core installation), Microsoft Windows Server, version 1909 (Server Core installation), Microsoft Windows Server, version 1903 (Server Core installation), Microsoft Windows Server version 2004, Microsoft Windows Server 2016, Microsoft Windows Server 2016 (Server Core installation), Microsoft Windows Server 2008 Service Pack 2, Microsoft Windows Server 2008 Service Pack 2 (Server Core installation), Microsoft Windows Server 2008 Service Pack 2, Microsoft Windows Server 2008 R2 Service Pack 1, Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation), Microsoft Windows Server 2012, Microsoft Windows Server 2012 (Server Core installation), Microsoft Windows Server 2012 R2, Microsoft Windows Server 2012 R2 (Server Core installation).
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