Check Point Advisories

Zyxel USG Command Injection (CVE-2022-30525)

Vulnerability
Protection

Check Point Reference:	CPAI-2022-0251
Date Published:	19 May 2022
Severity:	Critical
Last Updated:	Wednesday 13 December, 2023
Source:
Industry Reference:	CVE-2022-30525
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1 Zyxel USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1 Zyxel USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1 Zyxel USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1 Zyxel USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1 Zyxel USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1 Zyxel ATP series firmware versions 5.10 through 5.21 Patch 1 Zyxel VPN series firmware versions 4.60 through 5.21 Patch 1
Vulnerability Description	A command injection vulnerability exists in Zyxel USG. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary commands 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

In the IPS tab, click Protections and find the Zyxel USG Command Injection (CVE-2022-30525) 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: Zyxel USG Command Injection (CVE-2022-30525)