Getting a 500 error when sending a malformed base64 encoded basic auth header.

[Sxmindu]

Description

In MGW when invoking APIs using malformed base64 encoded basic auth header, the server returns a 500 instead of a 401.

Steps to Reproduce

1. First hosted an API by following [1].
2. Before deploying the API in the Micro-Gateway runtime, Configured the WSO2 API Microgateway for Basic Authentication using [2].
3. Then invoke the https://localhost:9095/petstore/v1/pet/1 using postman by adding Authorization : Basic YWRtaW46YWRtaW4=. This returned a 200 OK reponse. YWRtaW46YWRtaW4=1 is Base64(admin:admin).
4. Then invoke the https://localhost:9095/petstore/v1/pet/1 again using postman by adding Authorization : Basic YWRtaW46YWRtaW4=1 (malformed basic auth). This returned a 500 Internal Server Error with the below reponse:

[1] : https://mg.docs.wso2.com/en/latest/how-tos/adding-apis/using-an-openapi-definition/
[2] : https://mg.docs.wso2.com/en/latest/how-tos/security/api-authentication/basic-authentication/

Version

WSO2 Microgateway 3.2.0

Environment Details (with versions)

No response

Relevant Log Output

Related Issues

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Suggested Labels

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