You can monitor application security for Java apps running in Docker, Kubernetes, Amazon ECS, and AWS Fargate.

Prerequisites

• The Datadog Agent is installed and configured for your application’s operating system or container, cloud, or virtual environment.
• If your service is running with an Agent with Remote Configuration enabled and a tracing library version that supports it, you can block attackers from the Datadog UI without additional configuration of the Agent or tracing libraries.

Enabling Application & API Protection

Get started

1. Update your Datadog Java library to at least version 0.94.0 (at least version 1.1.4 for Software Composition Analysis detection features):

   wget -O dd-java-agent.jar 'https://dtdg.co/latest-java-tracer'
   

   curl -Lo dd-java-agent.jar 'https://dtdg.co/latest-java-tracer'
   

   ADD 'https://dtdg.co/latest-java-tracer' dd-java-agent.jar
   

   To check that your service’s language and framework versions are supported for Application & API Protection capabilities, see Compatibility.

2. Run your Java application with Application & API Protection enabled. From the command line:

   java -javaagent:/path/to/dd-java-agent.jar -Ddd.appsec.enabled=true -Ddd.trace.enabled=false -Ddd.service=<MY SERVICE> -Ddd.env=<MY_ENV> -jar path/to/app.jar
   

   Or one of the following methods, depending on where your application runs:

   Note: Read-only file systems are not currently supported. The application must have access to a writable /tmp directory.

   Update your configuration container for APM by adding the following arguments in your docker run command:

   docker run [...] -e DD_APPSEC_ENABLED=true -e DD_APM_TRACING_ENABLED=false [...]
   

   Add the following environment variable values to your container Dockerfile:

   ENV DD_APPSEC_ENABLED=true
   ENV DD_APM_TRACING_ENABLED=false
   

   Update your deployment configuration file for APM and add the Application & API Protection environment variables:

   spec:
     template:
       spec:
         containers:
           - name: <CONTAINER_NAME>
             image: <CONTAINER_IMAGE>/<TAG>
             env:
               - name: DD_APPSEC_ENABLED
                 value: "true"
               - name: DD_APM_TRACING_ENABLED
                 value: "false"
   

   Update your ECS task definition JSON file, by adding these in the environment section:

   "environment": [
     ...,
     {
       "name": "DD_APPSEC_ENABLED",
       "value": "true"
     },
     {
       "name": "DD_APM_TRACING_ENABLED",
       "value": "false"
     }
   ]
   

   Set the appropriate flags or environment variables in your service invocation:

   java -javaagent:dd-java-agent.jar \
        -Ddd.appsec.enabled=true \
        -Ddd.trace.enabled=false \
        -jar <YOUR_SERVICE>.jar \
        <YOUR_SERVICE_FLAGS>
   

   After this configuration is complete, the library collects security data from your application and sends it to the Agent. The Agent sends the data to Datadog, where out-of-the-box detection rules flag attacker techniques and potential misconfigurations so you can take steps to remediate.

3. To see App and API Protection threat detection in action, send known attack patterns to your application. For example, trigger the Security Scanner Detected rule by running a file that contains the following curl script:

   for ((i=1;i<=250;i++)); 
   do
   # Target existing service’s routes
   curl https://your-application-url/existing-route -A dd-test-scanner-log;
   # Target non existing service’s routes
   curl https://your-application-url/non-existing-route -A dd-test-scanner-log;
   done

   Note: The dd-test-scanner-log value is supported in the most recent releases.

   A few minutes after you enable your application and send known attack patterns to it, threat information appears in the Application Signals Explorer and vulnerability information appears in the Vulnerability Explorer.

If you need additional assistance, contact Datadog support.

Further Reading

Additional helpful documentation, links, and articles:

Adding user information to tracesDOCUMENTATION Java Datadog library source codeSOURCE CODE OOTB App & API Protection RulesDOCUMENTATION Troubleshooting App & API ProtectionDOCUMENTATION