CVE-2020-1061: Microsoft Script Runtime Remote Code Execution Vulnerability

Published May 12, 2020
·
Updated

A remote code execution vulnerability exists in the way that the Microsoft Script Runtime handles objects in memory, aka 'Microsoft Script Runtime Remote Code Execution Vulnerability'.

Other sources

A remote code execution vulnerability exists in the way that the Microsoft Script Runtime handles objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the Microsoft Script Runtime handles objects in memory.

Microsoft

Affected Software

61 affected componentsFixes available
Microsoft Windows 10
Microsoft Windows 10=1607
Microsoft Windows 10=1709
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows 10=1903
Microsoft Windows 10=1909
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016=1803
Microsoft Windows Server 2016=1903
Microsoft Windows Server 2016=1909
Microsoft Windows Server 2019
Microsoft Windows 10=1709
Microsoft Windows 10=1709
Microsoft Windows Server=1909
Microsoft Windows Server 2019
Microsoft Windows 10=1903
Microsoft Windows 10=1709
Microsoft Windows Server 2019
Microsoft Windows 10=1909
Microsoft Windows 10=1909
Microsoft Windows 10=1909
Microsoft Windows 10=1809
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows 10=1803
Microsoft Windows Server=1803
Microsoft Windows 10=1803
Microsoft Windows Server 2008
Microsoft Windows 10=1809
Microsoft Windows RT 8.1
Microsoft Windows Server 2008
Microsoft Windows 8.1 for 32-bit systems
Microsoft Windows 7
Microsoft Windows Server 2016
Microsoft Windows 10=1607
Microsoft Windows 7
Microsoft Windows Server 2016
Microsoft Windows 10=1607
Microsoft Windows 10
Microsoft Windows 8.1 for x64-based systems
Microsoft Windows 10
Microsoft Windows 10=1903
Microsoft Windows Server=1903
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2012
Microsoft Windows Server 2008 R2
Microsoft Windows 10=1903
Microsoft Windows Server 2012
Microsoft Windows Server 2008
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2008

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4556812
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4556799
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4551853
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4556807
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4556854
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4556846
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4556853
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4556813
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4556843
  10. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4556826
  11. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4556852

Event History

May 12, 2020
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
DescriptionSeverity
May 21, 2020
CVE Published
via MITRE·10:52 PM
Data Sourced
via MITRE·10:52 PM
DescriptionSeverity
Data Sourced
via NVD·11:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2020-1061?

CVE-2020-1061 has a severity rating of critical, indicating a significant risk of remote code execution.

2

How do I fix CVE-2020-1061?

To fix CVE-2020-1061, apply the security updates provided by Microsoft for the affected versions of Windows.

3

What versions of Windows are affected by CVE-2020-1061?

CVE-2020-1061 affects multiple versions of Windows 10, Windows 7, Windows 8.1, and various versions of Windows Server.

4

Is CVE-2020-1061 a local or remote vulnerability?

CVE-2020-1061 is a remote vulnerability that allows an attacker to execute code on a victim's machine.

5

What type of vulnerability is CVE-2020-1061?

CVE-2020-1061 is classified as a Remote Code Execution vulnerability in the Microsoft Script Runtime.

Contact

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