Given the following code containing errors, provide Common Weakness Enumeration (CWE) identifiers and corresponding messages in JSON format. Each identified weakness should have a unique entry in the JSON array.
    Code: TEST_F(OAuth2Test, OAuthTestFullFlowPostWithParameters) {
  // First construct the initial request to the oauth filter with URI parameters.
  Http::TestRequestHeaderMapImpl first_request_headers{
      {Http::Headers::get().Path.get(), "/test?name=admin&level=trace"},
      {Http::Headers::get().Host.get(), "traffic.example.com"},
      {Http::Headers::get().Method.get(), Http::Headers::get().MethodValues.Post},
      {Http::Headers::get().Scheme.get(), "https"},
  };

  // This is the immediate response - a redirect to the auth cluster.
  Http::TestResponseHeaderMapImpl first_response_headers{
      {Http::Headers::get().Status.get(), "302"},
      {Http::Headers::get().Location.get(),
       "https://auth.example.com/oauth/"
       "authorize/?client_id=" +
           TEST_CLIENT_ID + "&scope=" + TEST_ENCODED_AUTH_SCOPES +
           "&response_type=code&"
           "redirect_uri=https%3A%2F%2Ftraffic.example.com%2F"
           "_oauth&state=https%3A%2F%2Ftraffic.example.com%2Ftest%"
           "3Fname%3Dadmin%26level%3Dtrace"
           "&resource=oauth2-resource&resource=http%3A%2F%2Fexample.com"
           "&resource=https%3A%2F%2Fexample.com"},
  };

  // Fail the validation to trigger the OAuth flow.
  EXPECT_CALL(*validator_, setParams(_, _));
  EXPECT_CALL(*validator_, isValid()).WillOnce(Return(false));

  // Check that the redirect includes the escaped parameter characters, '?', '&' and '='.
  EXPECT_CALL(decoder_callbacks_, encodeHeaders_(HeaderMapEqualRef(&first_response_headers), true));

  // This represents the beginning of the OAuth filter.
  EXPECT_EQ(Http::FilterHeadersStatus::StopIteration,
            filter_->decodeHeaders(first_request_headers, false));

  // This represents the callback request from the authorization server.
  Http::TestRequestHeaderMapImpl second_request_headers{
      {Http::Headers::get().Path.get(), "/_oauth?code=123&state=https%3A%2F%2Ftraffic.example.com%"
                                        "2Ftest%3Fname%3Dadmin%26level%3Dtrace"},
      {Http::Headers::get().Host.get(), "traffic.example.com"},
      {Http::Headers::get().Method.get(), Http::Headers::get().MethodValues.Get},
      {Http::Headers::get().Scheme.get(), "https"},
  };

  // Deliberately fail the HMAC validation check.
  EXPECT_CALL(*validator_, setParams(_, _));
  EXPECT_CALL(*validator_, isValid()).WillOnce(Return(false));

  EXPECT_CALL(*oauth_client_, asyncGetAccessToken("123", TEST_CLIENT_ID, "asdf_client_secret_fdsa",
                                                  "https://traffic.example.com" + TEST_CALLBACK));

  // Invoke the callback logic. As a side effect, state_ will be populated.
  EXPECT_EQ(Http::FilterHeadersStatus::StopAllIterationAndBuffer,
            filter_->decodeHeaders(second_request_headers, false));

  EXPECT_EQ(1, config_->stats().oauth_unauthorized_rq_.value());
  EXPECT_EQ(config_->clusterName(), "auth.example.com");

  // Expected response after the callback & validation is complete - verifying we kept the
  // state and method of the original request, including the query string parameters.
  Http::TestRequestHeaderMapImpl second_response_headers{
      {Http::Headers::get().Status.get(), "302"},
      {Http::Headers::get().SetCookie.get(),
       "OauthHMAC="
       "NWUzNzE5MWQwYTg0ZjA2NjIyMjVjMzk3MzY3MzMyZmE0NjZmMWI2MjI1NWFhNDhkYjQ4NDFlZmRiMTVmMTk0MQ==;"
       "version=1;path=/;Max-Age=;secure;HttpOnly"},
      {Http::Headers::get().SetCookie.get(),
       "OauthExpires=;version=1;path=/;Max-Age=;secure;HttpOnly"},
      {Http::Headers::get().SetCookie.get(), "BearerToken=;version=1;path=/;Max-Age=;secure"},
      {Http::Headers::get().Location.get(),
       "https://traffic.example.com/test?name=admin&level=trace"},
  };

  EXPECT_CALL(decoder_callbacks_,
              encodeHeaders_(HeaderMapEqualRef(&second_response_headers), true));
  EXPECT_CALL(decoder_callbacks_, continueDecoding());

  filter_->finishFlow();
} ; Sample JSON Format Confermily Expected output: "examples" => "cwe": "xxx"; "message": "xxx"
    
 'cwe': ['CWE-416'], 'message': 'oauth2: do not blindly accept requests with a token in the Authorization headera (781)

The logic was broken because it assumed an additional call would be
performed to the auth server, which isn't the case. Per the filter
documentation, a request is only considered subsequently authenticated
if there's valid cookie that was set after the access token was received
from the auth server:

https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_filters/oauth2_filter

More info about how to validate an access token (which we don't do, per
above):

https://www.oauth.com/oauth2-servers/token-introspection-endpoint/
https://datatracker.ietf.org/doc/html/rfc7662

Also fix the fact that ee shouldn't be calling continueDecoding() after
decoder_callbacks_->encodeHeaders().

Signed-off-by: Raul Gutierrez Segales <rgs@pinterest.com>
Signed-off-by: Matt Klein <mklein@lyft.com>
Signed-off-by: Pradeep Rao <pcrao@google.com>'