Finding ID | Version | Rule ID | IA Controls | Severity |
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V-222927 | TCAT-AS-000020 | SV-222927r615938_rule | Medium |
Description |
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The Tomcat <Connector> element controls the TLS protocol and the associated ciphers used. If a strong cipher is not selected, an attacker may be able to circumvent encryption protections that are configured for the connector. Strong ciphers must be employed when configuring a secured connector. The configuration attribute and its values depend on what HTTPS implementation the user is utilizing. The user may be utilizing either Java-based implementation aka JSSE — with BIO and NIO connectors, or OpenSSL-based implementation — with APR connector. TLSv1.2 ciphers are configured via the server.xml file on a per connector basis. For a list of approved ciphers, refer to NIST SP 800-52 section 3.3.1.1. |
STIG | Date |
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Apache Tomcat Application Sever 9 Security Technical Implementation Guide | 2021-12-27 |
Check Text ( C-24599r426225_chk ) |
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From the Tomcat server console, run the following command: sudo grep -i ciphers $CATALINA_BASE/conf/server.xml. Examine each For a list of approved ciphers, refer to NIST SP 800-52 section 3.3.1.1. If insecure ciphers are configured for use, this is a finding. |
Fix Text (F-24588r426226_fix) |
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As a privileged user on the Tomcat server, edit the $CATALINA_BASE/conf/server.xml and modify the Add the SSLEnabledProtocols="TLSv1.2" setting to the connector or modify the existing setting. Set SSLEnabledProtocols="TLSv1.2". Save the server.xml file and restart Tomcat: sudo systemctl restart tomcat sudo systemctl reload-daemon |