Hi @SibiMa ,
A 403 Forbidden error during SAML authentication typically indicates that the request is being blocked, either by the dispatcher or the AEM publisher itself. Since you've mentioned that you have configured the dispatcher rules according to Adobe's guidelines and are still encountering the issue, it's essential to troubleshoot both the dispatcher and the AEM publisher configurations.
Here are some steps to diagnose and potentially resolve the issue:
Dispatcher Configuration
Check Dispatcher Filters:
- Ensure that your dispatcher filters allow the saml_login path. In your dispatcher configuration, this would be in the filter section. You should have an entry that explicitly allows this path:
/filter
{
...
/0004 { /type "allow" /url "/saml_login" }
...
}
Review Dispatcher Logs:
- The logs you shared indicate a possible blocking by the dispatcher. Double-check the dispatcher logs to see if any other rules might be inadvertently blocking the request. Look for any DENY entries related to the saml_login path.
AEM Publisher Configuration
Check User Permissions:
- Ensure that the user account configured for SAML has the necessary permissions to access the AEM resources. Sometimes, a 403 error can result from insufficient permissions for the user being authenticated.
Review SAML Configuration:
- Double-check your SAML configuration in AEM, especially the Service Provider (SP) and Identity Provider (IdP) configurations. Ensure that the metadata is correctly configured and that the certificate used is valid and properly uploaded.
Enable Detailed Logging:
- You mentioned enabling logs as per the Adobe docs. Ensure that detailed logging for SAML is enabled:
com.adobe.granite.auth.saml.SamlAuthenticationHandler
org.apache.sling.auth.core.impl.SlingAuthenticator
org.apache.jackrabbit.oak.security.authentication.token.TokenAuthentication
org.apache.jackrabbit.oak.spi.security.authentication.external.impl.ExternalLoginModule
- Check the logs for any detailed error messages that might give more context about the 403 error.
Additional Steps
Dispatcher Cache:
- Clear the dispatcher cache to ensure that any old rules are not interfering with the new configuration.
Network Configuration:
- Ensure that there are no network-level blocks or firewall rules preventing access to the saml_login path.
Validate Dispatcher Configuration Syntax:
- Sometimes, a small syntax error in the dispatcher configuration file can cause unexpected behavior. Validate the configuration file for any such issues.
Troubleshooting Workflow
Test Direct Access:
- Try accessing the saml_login path directly on the AEM publisher without going through the dispatcher. If this works, the issue is likely with the dispatcher configuration.
Temporary Disable Dispatcher:
- Temporarily disable the dispatcher to see if the SAML integration works. If it does, incrementally re-enable the dispatcher rules to identify the problematic rule.
Example Dispatcher Configuration
Here's an example dispatcher configuration snippet that includes a rule to allow SAML login:
/cache
{
/rules
{
/0000
{
/glob "*"
/type "allow"
}
}
/invalidate
{
/0000
{
/glob "*"
}
}
/statfileslevel "0"
/allowAuthorized "0"
/rules
{
/0000
{
/glob "*"
/type "allow"
}
}
/headers
{
"CQ-Action-Scope"
}
/filter
{
/0000
{
/type "allow"
/url "/saml_login"
}
/0001
{
/type "deny"
/glob "*"
}
}
}
Ensure you replace this snippet appropriately into your existing configuration, respecting the overall structure.
If after following these steps, you still encounter the issue, consider providing additional logs or configuration snippets for a more detailed analysis.
