CVE-2021-46876

@@ -84,3 +84,7 @@ parameters:
         refreshSession:
             mediaType: 'UserSession'
             href: 'templateRouter.generate("ezpublish_rest_refreshSession", {sessionId: "{sessionId}"})'
+
+    # Boundary times in microseconds which the authentication check will be delayed by.
+    ezpublish_rest.authentication_min_delay_time: 30000
+    ezpublish_rest.authentication_max_delay_time: 500000
\ No newline at end of file

@@ -15,6 +15,8 @@ services:
             - "@ezpublish.config.resolver"
             - "@session.storage"
             - "@?logger"
+            - "%ezpublish_rest.authentication_min_delay_time%"
+            - "%ezpublish_rest.authentication_max_delay_time%"
         abstract: true
 
     ezpublish_rest.security.authentication.logout_handler:

@@ -59,7 +59,7 @@ public function createSessionAction(Request $request)
             )
         );
         $request->attributes->set('username', $sessionInput->login);
-        $request->attributes->set('password', $sessionInput->password);
+        $request->attributes->set('password', (string) $sessionInput->password);
 
         try {
             $session = $request->getSession();

@@ -36,6 +36,10 @@
  */
 class RestAuthenticator implements ListenerInterface, AuthenticatorInterface
 {
+    const DEFAULT_MIN_SLEEP_VALUE = 30000;
+
+    const DEFAULT_MAX_SLEEP_VALUE = 500000;
+
     /** @var \Psr\Log\LoggerInterface */
     private $logger;
 
@@ -59,14 +63,26 @@ class RestAuthenticator implements ListenerInterface, AuthenticatorInterface
     /** @var \Symfony\Component\Security\Http\Logout\LogoutHandlerInterface[] */
     private $logoutHandlers = [];
 
+    /**
+     * @var int|null
+     */
+    private $minSleepTime;
+
+    /**
+     * @var int|null
+     */
+    private $maxSleepTime;
+
     public function __construct(
         TokenStorageInterface $tokenStorage,
         AuthenticationManagerInterface $authenticationManager,
         $providerKey,
         EventDispatcherInterface $dispatcher,
         ConfigResolverInterface $configResolver,
         SessionStorageInterface $sessionStorage,
-        LoggerInterface $logger = null
+        LoggerInterface $logger = null,
+        $minSleepTime = self::DEFAULT_MIN_SLEEP_VALUE,
+        $maxSleepTime = self::DEFAULT_MAX_SLEEP_VALUE
     ) {
         $this->tokenStorage = $tokenStorage;
         $this->authenticationManager = $authenticationManager;
@@ -75,6 +91,8 @@ public function __construct(
         $this->configResolver = $configResolver;
         $this->sessionStorage = $sessionStorage;
         $this->logger = $logger;
+        $this->minSleepTime = !is_int($minSleepTime) ? self::DEFAULT_MIN_SLEEP_VALUE : $minSleepTime;
+        $this->maxSleepTime = !is_int($maxSleepTime) ? self::DEFAULT_MAX_SLEEP_VALUE : $maxSleepTime;
     }
 
     /**
@@ -89,6 +107,8 @@ public function handle(GetResponseEvent $event)
 
     public function authenticate(Request $request)
     {
+        usleep(random_int($this->minSleepTime, $this->maxSleepTime));
+
         // If a token already exists and username is the same as the one we request authentication for,
         // then return it and mark it as coming from session.
         $previousToken = $this->tokenStorage->getToken();