Check Point Advisories

WECON LeviStudioU Buffer Overflow (CVE-2021-23138)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-1817
Date Published:	14 Aug 2023
Severity:	High
Last Updated:	Monday 14 August, 2023
Source:
Industry Reference:	CVE-2021-23138
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	WECON LeviStudioU 2019-09-21 and prior
Vulnerability Description	A buffer overflow vulnerability exists in WECON LeviStudioU. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system or cause application crashes.

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 WECON LeviStudioU Buffer Overflow (CVE-2021-23138) 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: Web Client Enforcement Violation.
Attack Information: WECON LeviStudioU Buffer Overflow (CVE-2021-23138)