Check Point Advisories

Advantech R-SeeNet telnet_form.php Cross-Site Scripting (CVE-2021-21799)

Check Point Reference: CPAI-2021-0996
Date Published: 28 Dec 2021
Severity: High
Last Updated: Tuesday 28 December, 2021
Industry Reference:CVE-2021-21799
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? R-SeeNet
Vulnerability Description A reflected cross-site scripting vulnerability exists in Advantech R-SeeNet. The vulnerability is due to improper input validation in telnet_form.php.

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

  1. In the IPS tab, click Protections and find the Advantech R-SeeNet telnet_form.php Cross-Site Scripting (CVE-2021-21799) 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:  HP Products Protection Violation.
Attack Information:  Advantech R-SeeNet telnet_form.php Cross-Site Scripting (CVE-2021-21799)

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