CVE-2020-1147 : A remote code execution vulnerability exists in .NET Framework, Microsoft ShareP

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'.

Published 2020-07-14 23:15:12

Updated 2022-07-12 17:42:04

Source Microsoft Corporation

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2020-1147

Microsoft » .net Framework » Version: 2.0 Update SP2
cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
Microsoft » .net Framework » Version: 3.5
cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 8.1 » Version: N/A
When used together with: Microsoft » Windows Server 2012 » Version: N/A
When used together with: Microsoft » Windows Server 2012 » Version: R2
Microsoft » .net Framework » Version: 3.5.1
cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 7 » Version: N/A Update SP1
When used together with: Microsoft » Windows Server 2008 » Version: R2 Update SP1 For X64
Microsoft » .net Framework » Version: 3.0 Update SP2
cpe:2.3:a:microsoft:.net_framework:3.0:sp2:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
Microsoft » .net Framework » Version: 4.5.2
cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 7 » Version: N/A Update SP1
When used together with: Microsoft » Windows 8.1 » Version: N/A
When used together with: Microsoft » Windows Rt 8.1 » Version: N/A
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
When used together with: Microsoft » Windows Server 2008 » Version: R2 Update SP1 For X64
When used together with: Microsoft » Windows Server 2012 » Version: N/A
When used together with: Microsoft » Windows Server 2012 » Version: R2
Microsoft » .net Framework » Version: 4.6
cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: N/A
Microsoft » .net Framework » Version: 4.6.1
cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: N/A
Microsoft » .net Framework » Version: 4.6.2
cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: 1607
When used together with: Microsoft » Windows Server 2016 » Version: N/A
Microsoft » .net Framework » Version: 4.7
cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: 1607
When used together with: Microsoft » Windows Server 2016 » Version: N/A
Microsoft » .net Framework » Version: 4.7.1
cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: 1607
When used together with: Microsoft » Windows Server 2016 » Version: N/A
Microsoft » .net Framework » Version: 4.7.2
cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: 1607
When used together with: Microsoft » Windows Server 2016 » Version: N/A
Microsoft » .net Framework » Version: 4.8
cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: 1809
When used together with: Microsoft » Windows 10 » Version: 1903
When used together with: Microsoft » Windows 10 » Version: 1909
When used together with: Microsoft » Windows 10 » Version: 2004
When used together with: Microsoft » Windows Server 2016 » Version: 1903
When used together with: Microsoft » Windows Server 2016 » Version: 1909
When used together with: Microsoft » Windows Server 2016 » Version: 2004
When used together with: Microsoft » Windows Server 2019 » Version: N/A
Microsoft » Sharepoint Server » Version: 2010 Update SP2
cpe:2.3:a:microsoft:sharepoint_server:2010:sp2:*:*:*:*:*:*
Matching versions
Microsoft » Sharepoint Server » Version: 2019
cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*
Matching versions
Microsoft » Sharepoint Enterprise Server » Version: 2016
cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:*
Matching versions
Microsoft » Sharepoint Enterprise Server » Version: 2013 Update SP1
cpe:2.3:a:microsoft:sharepoint_enterprise_server:2013:sp1:*:*:*:*:*:*
Matching versions
Microsoft » .net Core » Version: 2.1
cpe:2.3:a:microsoft:.net_core:2.1:*:*:*:*:*:*:*
Matching versions
Microsoft » .net Core » Version: 3.1
cpe:2.3:a:microsoft:.net_core:3.1:*:*:*:*:*:*:*
Matching versions
Microsoft » Visual Studio 2017
Versions from including (>=) 15.0 and up to, including, (<=) 15.9
cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*
Matching versions
Microsoft » Visual Studio 2019
Versions from including (>=) 16.0 and up to, including, (<=) 16.6
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*
Matching versions

CVE-2020-1147 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:

Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution Vulnerability

CISA required action:

Apply updates per vendor instructions.

CISA description:

Microsoft .NET Framework, Microsoft SharePoint, and Visual Studio contain a remote code execution vulnerability when the software fails to check the source markup of XML file input. Successful exploitation allows an attacker to execute code in the context of the process responsible for deserializati

Notes:

https://nvd.nist.gov/vuln/detail/CVE-2020-1147

Added on 2021-11-03 Action due date 2022-05-03

Exploit prediction scoring system (EPSS) score for CVE-2020-1147

EPSS FAQ

87.99%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 99 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2020-1147

SharePoint DataSet / DataTable Deserialization

Disclosure Date: 2020-07-14

First seen: 2020-08-02

exploit/windows/http/sharepoint_data_deserialization

A remotely exploitable vulnerability exists within SharePoint that can be leveraged by a remote authenticated attacker to execute code within the context of the SharePoint application service. The privileges in this execution context are determined by the account that

More information

CVSS scores for CVE-2020-1147

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	1.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

References for CVE-2020-1147

https://www.exploitalert.com/view-details.html?id=35992

Microsoft SharePoint Server 2019 Remote Code Execution - Exploitalert
Exploit;Third Party Advisory
http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html

Microsoft SharePoint Server 2019 Remote Code Execution ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry
http://packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html

SharePoint DataSet / DataTable Deserialization ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147

Patch;Vendor Advisory
http://packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html

Microsoft SharePoint Server 2019 Remote Code Execution ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry

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