Check Point Advisories

Lantronix PremierWave 2050 Buffer Overflow (CVE-2021-21887; CVE-2021-21889; CVE-2021-21890; CVE-2021-21891; CVE-2021-21892)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-2201
Date Published:	8 Aug 2024
Severity:	Critical
Last Updated:	Monday 14 October, 2024
Source:
Industry Reference:	CVE-2021-21887 CVE-2021-21889 CVE-2021-21890 CVE-2021-21891 CVE-2021-21892
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Lantronix PremierWave 2050 firmware 8.9.0.0 R4
Vulnerability Description	A buffer overflow vulnerability exists in Lantronix PremierWave 2050. 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 Lantronix PremierWave 2050 Buffer Overflow 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: Application Servers Protection Violation.
Attack Information: Lantronix PremierWave 2050 Buffer Overflow