Check Point Advisories

Zabbix Server Active Proxy Trapper Command Injection (CVE-2017-2824)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0436
Date Published:	22 May 2017
Severity:	Medium
Last Updated:	Thursday 25 May, 2017
Source:	Zabbix
Industry Reference:	CVE-2017-2824
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	ZABBIX ZABBIX 2.4.7 to 2.4.8.r1 ZABBIX ZABBIX 2.0.x prior to 2.0.21rc1 ZABBIX ZABBIX 2.2.x prior to 2.2.18rc1 ZABBIX ZABBIX 3.0.x prior to 3.0.9rc1 ZABBIX ZABBIX 3.2.x prior to 3.2.5rc1 ZABBIX ZABBIX 3.4.x prior to 3.4.0alpha1
Vulnerability Description	A command injection vulnerability exists in Zabbix. The vulnerability is due to improper validation of user supplied input within the Trapper functionality of the server when the Auto-discovery or Auto-registration features are enabled. A remote, unauthenticated attacker could exploit this vulnerability by sending a special sequence of maliciously crafted requests to a vulnerable Zabbix proxy server.

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 R80 / R77 / R75

In the IPS tab, click Protections and find the Zabbix Server Active Proxy Trapper Command Injection 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 Server Enforcement Violation.
Attack Information: Zabbix Server Active Proxy Trapper Command Injection