Check Point Advisories

Citrix ADC Reflected Cross Site Scripting (CVE-2020-8191)

Check Point Reference: CPAI-2020-0678
Date Published: 27 Jul 2020
Severity: Medium
Last Updated: 27 Jul 2020
Source:
Industry Reference:CVE-2020-8191
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? Citrix ADC and Citrix Gateway prior to 13.0-58.30
Citrix ADC and Citrix Gateway 12.1-57.18
Citrix ADC and Citrix Gateway 12.0-63.21
Citrix ADC and Citrix Gateway 11.1-64.14
Citrix ADC and Citrix Gateway 10.5-70.18
Citrix SDWAN WAN-OP prior to 11.1.1a
Citrix SDWAN WAN-OP 11.0.3d
Citrix SDWAN WAN-OP 10.2.7
Vulnerability Description A reflected cross-site scripting vulnerability exists in Citrix ADC and Citrix gateway. The vulnerability is due to insufficient input validation in the web-based management interface. Successful exploitation could result in execution of arbitrary scripts 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 R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Citrix ADC Reflected Cross Site Scripting (CVE-2020-8191) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation.
Attack Information:  Citrix ADC Reflected Cross Site Scripting (CVE-2020-8191)

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