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Test your applicationsUpgrade Centos:6 tomcat6-webapps to version 0:6.0.24-98.el6_8 or higher.
Note: Versions mentioned in the description apply only to the upstream tomcat6-webapps package and not the tomcat6-webapps package as distributed by Centos.
See How to fix? for Centos:6 relevant fixed versions and status.
The Mapper component in Apache Tomcat 6.x before 6.0.45, 7.x before 7.0.68, 8.x before 8.0.30, and 9.x before 9.0.0.M2 processes redirects before considering security constraints and Filters, which allows remote attackers to determine the existence of a directory via a URL that lacks a trailing / (slash) character.