Check Point Advisories

Microsoft SharePoint Remote Code Execution (CVE-2023-33157)

Check Point Reference: CPAI-2023-0531
Date Published: 11 Jul 2023
Severity: Critical
Last Updated: Tuesday 11 July, 2023
Source: Microsoft CVE-2023-33157
Industry Reference:CVE-2023-33157
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Server 2019
Microsoft SharePoint Server Subscription Edition
Vulnerability Description A remote code execution vulnerability exists in Microsoft SharePoint. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Microsoft SharePoint Remote Code Execution (CVE-2023-33157) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Content Protection Violation.
Attack Information:  Microsoft SharePoint Remote Code Execution (CVE-2023-33157)

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