[Security][Guard] Prevent user enumeration via response content

Author: chalasr

Authentication/Provider/UserAuthenticationProvider.php

@@ -13,6 +13,7 @@
 
 use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
 use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
+use Symfony\Component\Security\Core\Exception\AccountStatusException;
 use Symfony\Component\Security\Core\Exception\AuthenticationException;
 use Symfony\Component\Security\Core\Exception\AuthenticationServiceException;
 use Symfony\Component\Security\Core\Exception\BadCredentialsException;
@@ -83,7 +84,7 @@ public function authenticate(TokenInterface $token)
             $this->userChecker->checkPreAuth($user);
             $this->checkAuthentication($user, $token);
             $this->userChecker->checkPostAuth($user);
-        } catch (BadCredentialsException $e) {
+        } catch (AccountStatusException $e) {
             if ($this->hideUserNotFoundExceptions) {
                 throw new BadCredentialsException('Bad credentials.', 0, $e);
             }

Tests/Authentication/Provider/UserAuthenticationProviderTest.php

@@ -79,7 +79,7 @@ public function testAuthenticateWhenProviderDoesNotReturnAnUserInterface()
 
     public function testAuthenticateWhenPreChecksFails()
     {
-        $this->expectException('Symfony\Component\Security\Core\Exception\CredentialsExpiredException');
+        $this->expectException(BadCredentialsException::class);
         $userChecker = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserCheckerInterface')->getMock();
         $userChecker->expects($this->once())
                     ->method('checkPreAuth')
@@ -97,7 +97,7 @@ public function testAuthenticateWhenPreChecksFails()
 
     public function testAuthenticateWhenPostChecksFails()
     {
-        $this->expectException('Symfony\Component\Security\Core\Exception\AccountExpiredException');
+        $this->expectException(BadCredentialsException::class);
         $userChecker = $this->getMockBuilder('Symfony\Component\Security\Core\User\UserCheckerInterface')->getMock();
         $userChecker->expects($this->once())
                     ->method('checkPostAuth')
@@ -116,15 +116,15 @@ public function testAuthenticateWhenPostChecksFails()
     public function testAuthenticateWhenPostCheckAuthenticationFails()
     {
         $this->expectException('Symfony\Component\Security\Core\Exception\BadCredentialsException');
-        $this->expectExceptionMessage('Bad credentials');
+        $this->expectExceptionMessage('Bad credentials.');
         $provider = $this->getProvider();
         $provider->expects($this->once())
                  ->method('retrieveUser')
                  ->willReturn($this->getMockBuilder('Symfony\Component\Security\Core\User\UserInterface')->getMock())
         ;
         $provider->expects($this->once())
                  ->method('checkAuthentication')
-                 ->willThrowException(new BadCredentialsException())
+                 ->willThrowException(new CredentialsExpiredException())
         ;
 
         $provider->authenticate($this->getSupportedToken());