Cis Cassandra40 V100 4.1

4.1 Ensure that logging is enabled

Profile Applicability

• Level 1 - Cassandra
• Level 1 - Cassandra on Linux

Description

Apache Cassandra uses Logback for logging functionality. While this can be set using nodetool setlogginglevel changes made using this method will be reverted to the level specified in the logback.xml file the next time the process restarts.

The configurable logging levels are:

• OFF
• TRACE
• DEBUG
• INFO (Default)
• WARN
• ERROR

Rationale

If logging is not enabled, issues may go undiscovered, and compromises and other incidents may occur without being quickly detected. It may also not be possible to provide evidence of compliance with security laws, regulations, and other requirements.

Audit

Execute the following command to confirm the setting is correct:

$ nodetool getlogginglevels
Logger Name                                        Log Level
ROOT                                                    INFO
org.cisecurity.workbench                                WARN

If set to OFF then this is a finding.

Remediation

To remediate this setting:

1. Edit the logback-test.xml if present; otherwise, edit the logback.xml

Add or modify the configuration to include at minimum INFO level logging:

<configuration scan="true">

    <appender name="STDOUT"
class="ch.qos.logback.core.ConsoleAppender">
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>INFO</level>
        </filter>
        <encoder>
            <pattern>%-5level [%thread] %date{ISO8601} %F:%L -
%msg%n</pattern>
        </encoder>
    </appender>

    <root level="INFO">
        <appender-ref ref="STDOUT" />
    </root>

    <logger name="org.cisecurity.workbench" level="WARN"/>
</configuration>

2. Restart the Apache Cassandra

Default Value

INFO

References

1. http://cassandra.apache.org/doc/latest/troubleshooting/reading_logs.html?highlight=logging
2. https://logback.qos.ch/manual/configuration.html

CIS Controls

• v8 8.5 Collect Detailed Audit Logs
  • Configure detailed audit logging for enterprise assets containing sensitive data. Include event source, date, username, timestamp, source addresses, destination addresses, and other useful elements that could assist in a forensic investigation.
• v7 6.3 Enable Detailed Logging
  • Enable system logging to include detailed information such as an event source, date, user, timestamp, source addresses, destination addresses, and other useful elements.

Profile

• Level 1 - Cassandra | Automated
• Level 1 - Cassandra on Linux | Automated