Jul 2020:
CVE-2020-1147 Published on July 14, 2020

A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check the source markup of XML file input, aka '.NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability'.

NVD

Known Exploited Vulnerability

This Microsoft .NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check the source markup of XML file input.

The following remediation steps are recommended / required by May 3, 2022: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2020-1147 can be exploited with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Products Associated with CVE-2020-1147

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Microsoft .NET Core
 
Microsoft Sharepoint Server
 
Microsoft Visual Studio 2017
 
Microsoft Visual Studio 2019
 
Microsoft Windows 10
 
Microsoft Windows Server
 
Microsoft Windows Server 2016
 
Microsoft Windows 7
 
Microsoft Windows 8.1
 
Microsoft Windows Rt 8 1
 
Microsoft Windows Server 2008
 
Microsoft Windows Server 2012
 
Microsoft Windows Server 2019
 

Affected Versions

Microsoft SharePoint Enterprise Server: Microsoft SharePoint Server: Microsoft Visual Studio 2019: Microsoft Visual Studio 2019 version 16.6 (includes 16.0 - 16.5): Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8): Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3): Microsoft .NET Core: Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2: Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems: Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems: Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation): Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems: Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems: Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems: Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems: Microsoft .NET Framework 4.8 on Windows Server 2016: Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation): Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1: Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1: Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems: Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems: Microsoft .NET Framework 4.8 on Windows RT 8.1: Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1: Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation): Microsoft .NET Framework 4.8 on Windows Server 2012: Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation): Microsoft .NET Framework 4.8 on Windows Server 2012 R2: Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1909 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server, version 1803 (Server Core Installation): Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016: Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems: Microsoft .NET Framework 4.6: Microsoft .NET Framework 2.0: Microsoft .NET Framework 3.0: Microsoft .NET Framework 3.5: Microsoft .NET Framework 3.5.1: Microsoft .NET Framework 4.5.2: Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for ARM64-based Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for ARM64-based Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 2004 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for ARM64-based Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for ARM64-based Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for ARM64-based Systems:

Exploit Probability

EPSS
93.43%
Percentile
99.81%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.