Attacker Value
High
(1 user assessed)
Exploitability
High
(1 user assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Local
5

CVE-2020-1147

Disclosure Date: July 14, 2020 •
CVE-2020-1147 CVSS v3 Base Score: 7.8
Exploited in the Wild
Reported by gwillcox-r7
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Description

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’.

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CVSS V3 Severity and Metrics
Base Score:
7.8 High
Impact Score:
5.9
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft SharePoint Server 2019
Microsoft SharePoint Server 2010 Service Pack 2
Microsoft Visual Studio 2019 16.0
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)
.NET Core 2.1
.NET Core 3.1
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows 7 for 32-bit Systems Service Pack 1
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows 8.1 for 32-bit systems
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows 8.1 for x64-based systems
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows RT 8.1
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2012
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2012 (Server Core installation)
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2012 R2
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2012 R2 (Server Core installation)
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) 1903
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 Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 4.6 Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft .NET Framework 3.5 Windows 8.1 for 32-bit systems
Microsoft .NET Framework 3.5 Windows 8.1 for x64-based systems
Microsoft .NET Framework 3.5 Windows Server 2012
Microsoft .NET Framework 3.5 Windows Server 2012 (Server Core installation)
Microsoft .NET Framework 3.5 Windows Server 2012 R2
Microsoft .NET Framework 3.5 Windows Server 2012 R2 (Server Core installation)
Microsoft .NET Framework 3.5.1 Windows 7 for 32-bit Systems Service Pack 1
Microsoft .NET Framework 3.5.1 Windows 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 3.5.1 Windows Server 2008 R2 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.5.2 Windows 7 for 32-bit Systems Service Pack 1
Microsoft .NET Framework 4.5.2 Windows 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.5.2 Windows 8.1 for 32-bit systems
Microsoft .NET Framework 4.5.2 Windows 8.1 for x64-based systems
Microsoft .NET Framework 4.5.2 Windows RT 8.1
Microsoft .NET Framework 4.5.2 Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 4.5.2 Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft .NET Framework 4.5.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.5.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Microsoft .NET Framework 4.5.2 Windows Server 2012
Microsoft .NET Framework 4.5.2 Windows Server 2012 (Server Core installation)
Microsoft .NET Framework 4.5.2 Windows Server 2012 R2
Microsoft .NET Framework 4.5.2 Windows Server 2012 R2 (Server Core installation)
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
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
exploit/windows/http/sharepoint_data_deserialization
Reporter
Unknown

Exploited in the Wild

Reported by:
Technical Analysis