CVE-2020-0931: Microsoft SharePoint Remote Code Execution Vulnerability

Overview

Severity

N/A

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2020-Apr

Released

2020-04-14

EPSS Score

20.66% (percentile: 95.6%)

Description

A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account. Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint. The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.

FAQ

Is the Preview Pane an attack vector for this vulnerability? No, the Preview Pane is not an attack vector.

Affected Products (5)

Microsoft Office

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

Security Updates (9)

• 4484321
• 4484322
• 4484308
• 4011584
• 4484292
• 4484291
• 2553306
• 4484299
• 4484301

Acknowledgments

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

Revision History

• 2020-04-14: Information published.