CVE-2021-24066: Microsoft SharePoint Remote Code Execution Vulnerability

Overview

Severity

High (CVSS 8.8)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Category

Remote Code Execution

Exploit Status

Not Exploited

Exploitation Likelihood

More Likely

Patch Tuesday

2021-Feb

Released

2021-02-09

EPSS Score

4.86% (percentile: 89.5%)

FAQ

What is the attack vector for this vulnerability? In a network-based attack an attacker would need to have the privileges to create a site. By creating a site using specific code, the attacker could execute code remotely on the target server.

Affected Products (4)

Microsoft Office

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

Security Updates (4)

• 4493195
• 4493194
• 4493223
• 4493210

Acknowledgments

Anonymous working with Trend Micro Zero Day Initiative

Revision History

• 2021-02-09: Information published.