cis-tomcat8-v110-10.11

DevOps & Security

Force SSL for all applications (Automated)

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10.11 Force SSL for all applications (Automated)

Description

Use the transport-guarantee attribute to ensure SSL protection when accessing all applications. This can be overridden on a per application basis in the application configuration.

Rationale

By default, when accessing applications SSL will be enforced to protect information sent over the network. By using the transport-guarantee attribute within web.xml, SSL is enforced.

Note: This requires SSL to be configured.

Impact

If the data protection level is set to INTEGRAL or CONFIDENTIAL, and the client is not already using SSL, then the client is redirected to the same URI, but using port 443 or the port defined for the redirectPort attribute in the <Connector> element in server.xml.

Audit Procedure

Ensure $CATALINA_HOME/conf/web.xml has the transport-guarantee attribute set to CONFIDENTIAL.

# grep transport-guarantee $CATALINA_HOME/conf/web.xml

Remediation

Set transport-guarantee to CONFIDENTIAL in $CATALINA_HOME/conf/web.xml:

<user-data-constraint>
  <transport-guarantee>CONFIDENTIAL</transport-guarantee>
</user-data-constraint>

Default Value

By default this configuration is not present.

References

https://www.owasp.org/index.php/Securing_tomcat

CIS Controls

Controls Version	Control	IG 1	IG 2	IG 3
v8	3.10 Encrypt Sensitive Data in TransitEncrypt sensitive data in transit. Example implementations can include: Transport Layer Security (TLS) and Open Secure Shell (OpenSSH).		●	●
v7	14.4 Encrypt All Sensitive Information in TransitEncrypt all sensitive information in transit.		●	●

Profile

Level 2