set headers for fuzzing request

pkg/protocols/http/request_fuzz.go

@@ -62,6 +62,7 @@ func (request *Request) executeFuzzingRule(input *contextargs.Context, previous
 		if err != nil {
 			return errors.Wrap(err, "fuzz: could not build request obtained from target file")
 		}
+		request.addHeadersToRequest(baseRequest)
 		input.MetaInput.Input = baseRequest.URL.String()
 		// execute with one value first to checks its applicability
 		err = request.executeAllFuzzingRules(input, previous, baseRequest, callback)
@@ -94,6 +95,7 @@ func (request *Request) executeFuzzingRule(input *contextargs.Context, previous
 	}
 	userAgent := useragent.PickRandom()
 	baseRequest.Header.Set("User-Agent", userAgent.Raw)
+	request.addHeadersToRequest(baseRequest)
 
 	// execute with one value first to checks its applicability
 	err = request.executeAllFuzzingRules(inputx, previous, baseRequest, callback)
@@ -112,6 +114,12 @@ func (request *Request) executeFuzzingRule(input *contextargs.Context, previous
 	return nil
 }
 
+func (request *Request) addHeadersToRequest(baseRequest *retryablehttp.Request) {
+	for k, v := range request.Headers {
+		baseRequest.Header.Set(k, v)
+	}
+}
+
 // executeAllFuzzingRules executes all fuzzing rules defined in template for a given base request
 func (request *Request) executeAllFuzzingRules(input *contextargs.Context, values map[string]interface{}, baseRequest *retryablehttp.Request, callback protocols.OutputEventCallback) error {
 	applicable := false