Check Point Advisories

Microsoft Outlook Privilege Escalation (CVE-2023-23397; CVE-2023-29324)

Vulnerability
Protection

Check Point Reference:	CPAI-2023-0144
Date Published:	17 Mar 2023
Severity:	Critical
Last Updated:	Monday 08 April, 2024
Source:	Microsoft CVE-2023-23397
Industry Reference:	CVE-2023-23397 CVE-2023-29324
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Microsoft Office LTSC 2021 for 32-bit editions Microsoft Outlook 2016 (32-bit edition) Microsoft Office LTSC 2021 for 64-bit editions Microsoft 365 Apps for Enterprise for 64-bit Systems Microsoft Office 2019 for 64-bit editions Microsoft 365 Apps for Enterprise for 32-bit Systems Microsoft Office 2019 for 32-bit editions Microsoft Outlook 2013 Service Pack 1 (64-bit editions) Microsoft Outlook 2013 RT Service Pack 1 Microsoft Outlook 2013 Service Pack 1 (32-bit editions) Microsoft Outlook 2016 (64-bit edition)
Vulnerability Description	A privilege escalation vulnerability exists in Microsoft Outlook. Successful exploitation of this vulnerability would allow a remote attacker to gain unauthorized access to 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

In the IPS tab, click Protections and find the Microsoft Outlook Privilege Escalation (CVE-2023-23397) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Windows SMB Protection Violation.
Attack Information: Microsoft Outlook Privilege Escalation (CVE-2023-23397)