CVE-2020-1439: PerformancePoint Services Remote Code Execution Vulnerability

Overview

Severity
N/A
Category
Remote Code Execution
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2020-Jul
Released
2020-07-14
EPSS Score
31.16% (percentile: 96.8%)

Description

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. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the process responsible for deserialization of the XML content. To exploit this vulnerability, an attacker could upload a specially crafted document to a server utilizing an affected product to process content. The security update addresses the vulnerability by correcting how PerformancePoint Services validates the source markup of XML content.

FAQ

Where does this vulnerability present itself? The vulnerability is found in the DataSet and DataTable types which are .NET components used to manage data sets. Where can I find additional developer guidance for the secure use of DataSet or DataTable types? Updated security guidance can be found on MSDN here - https://go.microsoft.com/fwlink/?linkid=2132227 What updates need to be installed to fully protect my system from this vulnerability? Full protection requires the installation of the .NET Framework update as well as updates for any additional affected products mentioned in this article.

Affected Products (5)

Microsoft Office

  • Microsoft SharePoint Enterprise Server 2013 Service Pack 1
  • Microsoft SharePoint Server 2019
  • Microsoft SharePoint Foundation 2013 Service Pack 1
  • Microsoft SharePoint Server 2010 Service Pack 2
  • Microsoft SharePoint Enterprise Server 2016

Security Updates (9)

Acknowledgments

Anonymous working with <a href="https://www.zerodayinitiative.com/">Trend Micro's Zero Day Initiative</a>

Revision History

  • 2020-07-14: Information published.