Number: AV20-044
Date: 25 February 2020
On 11 February 2020 the Apache Software Foundation released a security note to address vulnerabilities affecting its Apache Tomcat software (Tomcat Server). A remote actor could exploit this vulnerability to execute arbitrary code on the affected system.
This vulnerability affects the following versions of Apache Tomcat:
• Apache Tomcat 9 all supported builds below 9.0.31
• Apache Tomcat 8 all supported builds below 8.5.51
• Apache Tomcat 7 all supported builds below 7.0.100
• Apache Tomcat 6 all builds (no longer supported)
The Cyber Centre encourages users and administrators to review the Apache Tomcat webpage for the respective major versions and apply the necessary updates:
• http://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.31 (Tomcat 9)
• http://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.51 (Tomcat 8)
• http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.100 (Tomcat 7)
Note to Readers
The Canadian Centre for Cyber Security (Cyber Centre) operates as part of the Communications Security Establishment. We are Canada’s national authority on cyber security and we lead the government’s response to cyber security events. As Canada's national computer security incident response team, the Cyber Centre works in close collaboration with government departments, critical infrastructure , Canadian businesses and international partners to prepare for, respond to, mitigate, and recover from cyber events. We do this by providing authoritative advice and support, and coordinating information sharing and incident response. The Cyber Centre is outward-facing, welcoming partnerships that help build a stronger, more resilient cyber space in Canada.