Check Point Advisories

Apache Tomcat Denial of Service (CVE-2020-13935)

Vulnerability
Protection

Check Point Reference:	CPAI-2020-3850
Date Published:	3 Apr 2025
Severity:	High
Last Updated:	Thursday 03 April, 2025
Source:
Industry Reference:	CVE-2020-13935
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Apache Tomcat 7.0.27 and later, 7.0.104 and prior Apache Tomcat 8.5.0 and later, 8.5.56 and prior Apache Tomcat 9.0.1 and later, 9.0.36 and prior Apache Software Foundation Tomcat 9.0.0 Milestone 1 Apache Software Foundation Tomcat 9.0.0 Milestone 10 Apache Software Foundation Tomcat 9.0.0 Milestone 11 Apache Software Foundation Tomcat 9.0.0 Milestone 12 Apache Software Foundation Tomcat 9.0.0 Milestone 13 Apache Software Foundation Tomcat 9.0.0 Milestone 14 Apache Software Foundation Tomcat 9.0.0 Milestone 15 Apache Software Foundation Tomcat 9.0.0 Milestone 16 Apache Software Foundation Tomcat 9.0.0 Milestone 17 Apache Software Foundation Tomcat 9.0.0 Milestone 18 Apache Software Foundation Tomcat 9.0.0 Milestone 19 Apache Software Foundation Tomcat 9.0.0 Milestone 2 Apache Software Foundation Tomcat 9.0.0 Milestone 20 Apache Software Foundation Tomcat 9.0.0 Milestone 21 Apache Software Foundation Tomcat 9.0.0 Milestone 22 Apache Software Foundation Tomcat 9.0.0 Milestone 23 Apache Software Foundation Tomcat 9.0.0 Milestone 24 Apache Software Foundation Tomcat 9.0.0 Milestone 25 Apache Software Foundation Tomcat 9.0.0 Milestone 26 Apache Software Foundation Tomcat 9.0.0 Milestone 27 Apache Software Foundation Tomcat 9.0.0 Milestone 3 Apache Software Foundation Tomcat 9.0.0 Milestone 4 Apache Software Foundation Tomcat 9.0.0 Milestone 5 Apache Software Foundation Tomcat 9.0.0 Milestone 6 Apache Software Foundation Tomcat 9.0.0 Milestone 7 Apache Software Foundation Tomcat 9.0.0 Milestone 8 Apache Software Foundation Tomcat 9.0.0 Milestone 9 Apache Software Foundation Tomcat 10.0.0 Milestone 1 Apache Software Foundation Tomcat 10.0.0 Milestone 2 Apache Software Foundation Tomcat 10.0.0 Milestone 3 Apache Software Foundation Tomcat 10.0.0 Milestone 4 Apache Software Foundation Tomcat 10.0.0 Milestone 5 Apache Software Foundation Tomcat 10.0.0 Milestone 6
Vulnerability Description	A denial-of-service vulnerability exists in Apache Tomcat. Successful exploitation of this vulnerability would allow a remote attacker to create a denial of service condition 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 Apache Tomcat Denial of Service (CVE-2020-13935) 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: Apache Server Protection Violation.
Attack Information: Apache Tomcat Denial of Service (CVE-2020-13935)