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Check Point Advisories

URL Directory Traversal Over HTTP Traffic (CVE-2021-21983)

Check Point Reference: CPAI-2021-0234
Date Published: 21 Apr 2021
Severity: High
Last Updated: 21 Apr 2021
Industry Reference:CVE-2021-21983
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable?
Vulnerability Description URL Directory Traversal Over HTTP Traffic.

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 URL Directory Traversal Over HTTP Traffic 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 Server Enforcement Violation.
Attack Information:  URL Directory Traversal Over HTTP Traffic

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