Not-Enforced URI List in J2EE Agents

The J2EE agent AMAgent.properties configuration file allows you to specify a list of URIs that are treated as not-enforced. Access to these resources is always granted by the agent. The configuration property that controls this list is as follows:

com.sun.identity.agents.config.notenforced.uri

It is recommended that if your deployed application has pages that use a bulk of graphics that do not need the agent protection, such content be added to the agent’s not-enforced list to ensure the optimal utilization of the system resources. Following is an example of the entries that you may specify in the not-enforced list:

com.sun.identity.agents.config.notenforced.uri[0] = /images/*

com.sun.identity.agents.config.notenforced.uri[1] = /public/*.html

com.sun.identity.agents.config.notenforced.uri[2] = /registration/*

This enables the agent to focus on enforcing access control only over requests that do not match these given URI patterns. The use of a wildcard (*) is allowed to indicate the presence of one or more characters in the URI pattern being specified.

Inverting the Not-Enforced URI List

In situations where only a small portion of the deployed application needs protection, you can configure the agent to do just that by inverting the not-enforced list. This results in the agent enforcing access control over the entries that are specified in the not-enforced list and allowing access to all other resources on the system. This feature is controlled by the following property:

com.sun.identity.agents.config.notenforced.uri.invert

When you set the value to true for this property, it makes the entries specified in the not-enforced list as enforced entries and the rest of the application resources are treated as not-enforced.

When the not-enforced list is inverted, the number of resources for which the agent will not enforce access control is potentially very large. The use of this feature should therefore be used with extreme caution and only after extensive evaluation of the security requirements of the deployed applications.

• When an Access Denied URI is specified, it is never enforced by the agent regardless of the configuration of the not-enforced list. This is necessary to ensure that the agent can use the Access Denied URI to block any unauthorized access for protected system resources.

• When configuring access denied URIs within the deployment descriptor of the web application, you must ensure that these values are added to the not-enforced list of the agent. Failing to do so can result in application resources becoming inaccessible by the user.

• Any resource that has been added to the not-enforced list must not access any protected resource. If it does so, it can result in unauthorized access to protected system resources. For example, if a servlet that has been added to the not-enforced list, in turn sends the request to another servlet, which is protected, it can potentially lead to unauthorized access to the protected servlet.