|Check Point Reference:||CPAI-2021-0900|
|Date Published:||16 Dec 2021|
|Last Updated:||Tuesday 03 January, 2023|
|Protection Provided by:||
|Who is Vulnerable?|| Exchange 2013 CU23 versions before 15.0.1497.15|
Exchange 2016 CU19 versions before 15.1.2176.12
Exchange 2016 CU20 versions before 15.1.2242.5
Exchange 2019 CU8 versions before 15.2.792.13
Exchange 2019 CU9 versions before 15.2.858.9
|Vulnerability Description||An authentication bypass vulnerability exists in Microsoft Exchange Server. Successful exploitation of this vulnerability would allow remote attackers to gain unauthorized access into the affected system.|
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.
This protection's log will contain the following information:
Attack Name: Windows SMB Protection Violation.
Attack Information: Microsoft Exchange Server Security Feature Authentication Bypass (CVE-2021-31207)