CVE-2020-1439

Microsoft SharePoint Scorecards Deserialization of Untrusted Data Remote Code Execution Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A remote code execution vulnerability exists in PerformancePoint Services for SharePoint Server when the software fails to check the source markup of XML file input, aka 'PerformancePoint Services Remote Code Execution Vulnerability'.

Se presenta una vulnerabilidad de ejecución de código remota en PerformancePoint Services para SharePoint Server cuando el software presenta un fallo al comprobar el marcado de origen de una entrada de archivo XML, también se conoce como "PerformancePoint Services Remote Code Execution Vulnerability"

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft SharePoint Server. Authentication is required to exploit this vulnerability.
The specific flaw exists within the handling of controls in the Microsoft.PerformancePoint.Scorecards.Client module. Instantiating the ExcelDataSet control can trigger the deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the SharePoint web server process.

*Credits: Anonymous

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-11-04 CVE Reserved
2020-07-14 CVE Published
2024-08-04 CVE Updated
2025-04-13 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-502: Deserialization of Untrusted Data

CAPEC

References (2)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-20-874	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1439	2020-07-23

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Sharepoint Enterprise Server Search vendor "Microsoft" for product "Sharepoint Enterprise Server"				2013 Search vendor "Microsoft" for product "Sharepoint Enterprise Server" and version "2013"		sp1		Affected
Microsoft Search vendor "Microsoft"		Sharepoint Enterprise Server Search vendor "Microsoft" for product "Sharepoint Enterprise Server"				2016 Search vendor "Microsoft" for product "Sharepoint Enterprise Server" and version "2016"		-		Affected
Microsoft Search vendor "Microsoft"		Sharepoint Foundation Search vendor "Microsoft" for product "Sharepoint Foundation"				2013 Search vendor "Microsoft" for product "Sharepoint Foundation" and version "2013"		sp1		Affected
Microsoft Search vendor "Microsoft"		Sharepoint Server Search vendor "Microsoft" for product "Sharepoint Server"				2010 Search vendor "Microsoft" for product "Sharepoint Server" and version "2010"		sp2		Affected
Microsoft Search vendor "Microsoft"		Sharepoint Server Search vendor "Microsoft" for product "Sharepoint Server"				2019 Search vendor "Microsoft" for product "Sharepoint Server" and version "2019"		-		Affected