CVE-2020-17115: Microsoft SharePoint Server Spoofing Vulnerability

Overview

Severity

High (CVSS 8)

CVSS Vector

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

Category

Spoofing

Exploit Status

Not Exploited

Exploitation Likelihood

Less Likely

Patch Tuesday

2020-Dec

Released

2020-12-08

EPSS Score

14.56% (percentile: 94.5%)

FAQ

There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software? Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.

Affected Products (4)

Microsoft Office

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

Security Updates (5)

• 4486751
• 4486752
• 4486753
• 4493149
• 4493138

Acknowledgments

Daniel Fröjdendahl of <a href="https://omegapoint.se/">omegapoint.se</a>

Revision History

• 2020-12-08: Information published.