Check Point Advisories

Citrix SD-WAN Command Injection (CVE-2019-12991)

Vulnerability
Protection

Check Point Reference:	CPAI-2019-2525
Date Published:	3 Apr 2022
Severity:	High
Last Updated:	Sunday 03 April, 2022
Source:
Industry Reference:	CVE-2019-12991
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Citrix SD-WAN from 10.2.0 up to 10.2.3 Citrix NetScaler SD-WAN from 10.0.0 up to 10.0.8
Vulnerability Description	A command injection vulnerability exists in Citrix SD-WAN. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code 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 Citrix SD-WAN Command Injection (CVE-2019-12991) 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: Citrix ICA Protection Violation.
Attack Information: Citrix SD-WAN Command Injection (CVE-2019-12991)