Step-by-Step Guide: Allowing Admin Key Bypass in Atlassian Crowd REST API

Sure, I can provide a more detailed example of how to implement the Admin Key bypass functionality in the Atlassian Crowd REST API using Java and the Spring framework.

Prerequisites

You have a working Atlassian Crowd REST API implementation using Spring Boot.
You have defined the necessary endpoints and request handling logic.

Implementation Steps

Define the Admin Key:

Create a secure Admin Key, for example, a long, randomly generated string.
Store the Admin Key securely, such as in an environment variable or a secure storage system.

Create an Admin Key Filter:

Create a custom Spring Filter that will intercept incoming requests and check for the Admin Key.
Extend the OncePerRequestFilter class and override the doFilterInternal method.

   @Component
   public class AdminKeyFilter extends OncePerRequestFilter {
       private static final String ADMIN_KEY_HEADER = "X-Admin-Key";
       private static final String ADMIN_KEY = System.getenv("ADMIN_KEY");

       @Override
       protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
           String adminKey = request.getHeader(ADMIN_KEY_HEADER);

           if (ADMIN_KEY.equals(adminKey)) {
               // Admin Key is valid, allow the request to proceed
               filterChain.doFilter(request, response);
           } else {
               // Admin Key is missing or invalid, return a 403 Forbidden response
               response.setStatus(HttpServletResponse.SC_FORBIDDEN);
               response.getWriter().write("Forbidden: Invalid Admin Key");
           }
       }
   }

Register the Admin Key Filter:

In your Spring configuration class, register the AdminKeyFilter as a bean.

   @Configuration
   public class CrowdApiConfiguration {
       @Bean
       public FilterRegistrationBean<AdminKeyFilter> adminKeyFilter() {
           FilterRegistrationBean<AdminKeyFilter> registrationBean = new FilterRegistrationBean<>();
           registrationBean.setFilter(new AdminKeyFilter());
           registrationBean.addUrlPatterns("/rest/*");
           return registrationBean;
       }
   }

Modify API Request Handling:

In your REST API controller methods, add logic to check if the request is from an admin user or if the Admin Key is present.

   @RestController
   @RequestMapping("/rest/usermanagement/1")
   public class UserManagementController {
       @GetMapping("/users")
       public List<User> getUsers(HttpServletRequest request) {
           if (isAdminUser(request.getHeader("X-Remote-User"))) {
               // Admin user, return all users
               return userService.getAllUsers();
           } else if (isValidAdminKey(request.getHeader("X-Admin-Key"))) {
               // Valid Admin Key, return all users
               return userService.getAllUsers();
           } else {
               // Regular user, return only authorized users
               return userService.getAuthorizedUsers(request.getHeader("X-Remote-User"));
           }
       }
   }

Implement Admin Key Validation:

Create a method to validate the Admin Key, such as comparing it with the stored value.

   private static boolean isValidAdminKey(String adminKey) {
       return ADMIN_KEY.equals(adminKey);
   }

Secure the Admin Key:

Ensure that the Admin Key is transmitted over a secure channel (e.g., HTTPS) to prevent interception.
Consider implementing additional security measures, such as rate limiting or IP whitelisting, to prevent abuse.

Log Admin Key Usage:

Implement logging for requests that use the Admin Key to track access and potential misuse.
Use a logging framework like SLF4J or Logback to log relevant information, such as the requesting user, IP address, and timestamp.

Test and Deploy:

Thoroughly test the implementation to ensure that the Admin Key bypass works as intended without exposing sensitive operations to unauthorized users.
Deploy the updated Atlassian Crowd REST API implementation to your production environment.

By following these steps, you have implemented a mechanism to bypass restrictions in the Atlassian Crowd REST API using an Admin Key, while maintaining a focus on security and access control. Remember to keep the Admin Key secure and monitor its usage to prevent potential misuse.

Citations:
[1] https://docs.atlassian.com/atlassian-crowd/4.0.0/REST/
[2] https://jfrog.com/help/r/jfrog-rest-apis/update-crowd-settings
[3] https://help.sonatype.com/en/user-token-rest-api.html
[4] https://jfrog.com/help/r/jfrog-rest-apis/get-crowd-settings
[5] https://www.miniorange.com/atlassian/bulk-user-management-for-crowd
[6] https://www.miniorange.com/atlassian/crowd-two-factor-authentication-2fa
[7] https://help.sonatype.com/en/atlassian-crowd-rest-api.html
[8] https://docs.gitlab.com/ee/administration/auth/crowd.html
[9] https://www.miniorange.com/atlassian/crowd-saml-single-sign-on-sso-using-openam-idp
[10] https://stackoverflow.com/questions/31107150/crowd-rest-api-usage
[11] https://dexidp.io/docs/connectors/atlassian-crowd/
[12] https://developer.atlassian.com/server/crowd/crowd-rest-apis/
[13] https://www.tenable.com/plugins/was/113447
[14] https://github.com/soudmaijer/spring-crowd-rest-integration