Apache Tomcat Manager Admin Credentials

Hi,

I recently had an internal security scan and it highlighted access to Tomcat manager web app is possible using default credentials,
I have found the tomcat-users.xml file that contains the below, can I just change the password or will this stop something working?

- <tomcat-users>
  <role rolename="tomcat" />
  <role rolename="role1" />
  <role rolename="manager" />
  <role rolename="admin" />
  <user username="tomcat" password="tomcat" roles="tomcat" />
  <user username="both" password="tomcat" roles="tomcat,role1" />
  <user username="role1" password="tomcat" roles="role1" />
  <user username="admin" password="admin" roles="admin,manager" />
  </tomcat-users>
LVL 1
Ben SAsked:
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ArneLoviusCommented:
From the Tomcat7 Documentation https://tomcat.apache.org/tomcat-7.0-doc/manager-howto.html#Configuring_Manager_Application_Access

It would be quite unsafe to ship Tomcat with default settings that allowed anyone on the Internet to execute the Manager application on your server. Therefore, the Manager application is shipped with the requirement that anyone who attempts to use it must authenticate themselves, using a username and password that have one of manager-xxx roles associated with them (the role name depends on what functionality is required). Further, there is no username in the default users file ($CATALINA_BASE/conf/tomcat-users.xml) that is assigned to those roles. Therefore, access to the Manager application is completely disabled by default.

As the "safe" defaults have been changed, who knows what other "interesting choices" were made...

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