Web Agent Error Codes

The Cams web agent attempted to authenticate a user but the request failed due to an unknown error. The Cams web agent trace log and/or a Cams policy server trace log for the associated security domain should contain additional information.

The Cams client does not have a required authentication service. For Java-based Cams web agents, this service name and implementation are configured in cams-webagent.conf. For native code Cams web agents, the service is included in the Cams client library.

Cams web agents only support POST requests for authentication requests. A non-POST HTTP request was received by a Cams web agent for the URI configured for user authentication.

Query parameter cams_security_domain is invalid

An authentication request was received by a Cams web agent, but the required cams_security_domain parameter is missing, empty or invalid. A dynamic login page that does not correctly use the Cams cams_security_domain provided to it by a Cams web agent may be the cause.

NOTE: The login page should receive this value as a query parameter and store it in a hidden field named cams_security_domain. When the associated HTML form is posted during authentication, this parameter will be sent with the authentication request.

An authentication request was received by a Cams web agent, but the required cams_login_config parameter is missing, empty or invalid. A dynamic login page that does not correctly use the Cams cams_login_config provided to it by a Cams web agent may be the cause.

NOTE: The login page should receive this value as a query parameter and store it in a hidden field named cams_login_config. When the associated HTML form is posted during authentication, this parameter will be sent with the authentication request.

The Cams policy server denied access to the login page because the access control policy requires authentication. Authentication cannot occur unless the login page is presented to the user, without authentication. For example, the following access-control-policy.xml would cause this error to display:

...
<permission desc="Cams login, error and denied pages" actions="">
   <resource-pattern id="*://*:*/cams/*"/>
   <acr-ref id="require authentication"/>
</permission>
...
<auth-acr id="cams administrator rule">
   <role-constraint>
      <role-name>everyone</role-name>
   </role-constraint>
</auth-acr>
...

In this case, if the Cams login page URL is:

https://www.myhost.com/cams/login.jsp

the access control policy will deny access unless the user is authenticated. The Cams web agent will attempt to redirect the user's browser to the login page, but access will once again be denied by the access control policy. To avoid infinite redirection, the Cams web agents detects this case. To fix the problem, either grant access to the Cams login page or limit access to it using a rule that does not require authentication, such as an IP address rule.

Could not determine the security domain name

An AUTOLOGIN cookie is being removed because the name value is malformed. Specifically, it does not contain a security domain name field.

Access control failed

The Cams web agent attempted to execute an access control check, but it failed due to an unknown error. The Cams web agent trace log and/or a Cams policy server trace log for the associated security domain should contain additional information.

The Cams client does not have a required access control service. For Java-based Cams web agents, this service name and implementation are configured in cams-webagent.conf. For native code Cams web agents, the service is included in the Cams client library.

Invalid resource request type

The Cams web agent made an access control request for an unknown resource type. Cams web agents only make access control requests for resources of type cams or http.

The user was redirected to the Cams web agent access denied page, but was denied access to the page. The access control policy should unconditionally grant access to the denied page.

Access to the error page was denied

The user was redirected to the Cams web agent error page, but was denied access to the page. The access control policy should unconditionally grant access to the error page.

The Cams web agent's attempt to access an authenticated user's session failed due to an error in the Cams session access service.

The Cams client does not have a required session-access service. For Java-based Cams web agents, this service name and implementation are configured in cams-webagent.conf. For native code Cams web agents, the service is included in the Cams client library.

General transport error

An error occurred when the Cams web agent attempted to communicate with the Cams policy server.

Session control failed

The Cams web agent's attempt to logout the user failed due to an error in the Cams session control service.

Could not find the session control service

The Cams client does not have a required session-control service. For Java-based Cams web agents, this service name and implementation are configured in cams-webagent.conf. For native code Cams web agents, the service is included in the Cams client library.

Could not logout user because session id is invalid

The Cams web agent received a logout request, but no session identifier was provided. The user may have attempted to logout when not currently logged in or the logout page did not specify a valid cams_security_domain query parameter.

Query parameter cams_security_domain is invalid

The Cams web agent received a cams_security_domain query parameter value that was invalid, or empty. A misconfigured login page that either contains a bad hard-coded security domain name or if a dynamic web page does not properly store the security domain name passed to it by a Cams web agent may be the cause.

A possible session hijacking attempt occurred: expected hash value does not match

An session hijacking attempt was detected and thwarted or a possible Cams web agent misconfiguration resulted in what appeared to be a session hijacking attempt. If not an actual session hijacking attempt, inconsistent configuration of session hijacking values for different Cams web agents may be the cause. Confirm that the following properties have the same values for all Cams agents:

• cams.session.hijacking.protection.enable
• cams.session.hijacking.protection.algorithm
• cams.session.hijacking.protection.salt

Session hijacking misconfiguration

Session hijacking protection is not enabled for this Cams web agent, but appears to be enabled for another Cams web agent in the same Cams cluster. Confirm that the following properties have the same values for all Cams web agents:

• cams.session.hijacking.protection.enable
• cams.session.hijacking.protection.algorithm
• cams.session.hijacking.protection.salt

Session hijacking misconfiguration

Session hijacking protection is enabled for this Cams web agent agent, but appears not to be enabled for another Cams web agent in the same Cams cluster. Confirm that the following properties have the same values for all Cams web agents:

• cams.session.hijacking.protection.enable
• cams.session.hijacking.protection.algorithm
• cams.session.hijacking.protection.salt

Multiple redirect obligations

The Cams web agent was sent more than one redirect obligation by the Cams policy server for a single access control response. To avoid situations where the Cams web agent would need to decide which redirect to send to the browser, the Cams web agent rejects access control responses that include more than one obligation redirect. Check the access control policy to correct the rule that is sending a multiple redirect obligation.

Obligation not supported

The Cams web agent was sent an obligation that is not supported. Check the release notes to verify the obligation support level for this Cams web agent.

Missing obligation attribute value

The Cams web agent was sent an HTTP redirect obligation but did not specify the URL for the redirect.

Internal obligation attribute value handling error

An internal Cams web agent error occurred while attempting to handle an obligation attribute value. A pointer was NULL when not expected.