From ea4bf5b484b3d39ebf3f6b91e9df61df1dc4643f Mon Sep 17 00:00:00 2001
From: "github-actions[bot]"
 <41898282+github-actions[bot]@users.noreply.github.com>
Date: Thu, 22 Aug 2024 14:24:27 -0400
Subject: [PATCH] fix: handle empty input regions (#4842)

Co-authored-by: Sergio Garcia <38561120+sergargar@users.noreply.github.com>
---
 prowler/providers/aws/aws_provider.py    | 2 +-
 tests/providers/aws/aws_provider_test.py | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/prowler/providers/aws/aws_provider.py b/prowler/providers/aws/aws_provider.py
index 683b478968..7a24829acf 100644
--- a/prowler/providers/aws/aws_provider.py
+++ b/prowler/providers/aws/aws_provider.py
@@ -78,7 +78,7 @@ class AwsProvider(Provider):
         # MFA Configuration (false by default)
         input_mfa = getattr(arguments, "mfa", None)
         input_profile = getattr(arguments, "profile", None)
-        input_regions = set(getattr(arguments, "region", set()))
+        input_regions = set(getattr(arguments, "region", []) or [])
         organizations_role_arn = getattr(arguments, "organizations_role", None)
 
         # Set if unused services must be scanned
diff --git a/tests/providers/aws/aws_provider_test.py b/tests/providers/aws/aws_provider_test.py
index e0e4d3d2b4..cbec76b7a5 100644
--- a/tests/providers/aws/aws_provider_test.py
+++ b/tests/providers/aws/aws_provider_test.py
@@ -755,6 +755,14 @@ aws:
         assert aws_provider.mutelist.mutelist == mutelist["Mutelist"]
         assert aws_provider.mutelist.mutelist_file_path == dynamodb_mutelist_path
 
+    @mock_aws
+    def test_empty_input_regions_in_arguments(self):
+        arguments = Namespace()
+        arguments.region = None
+        aws_provider = AwsProvider(arguments)
+
+        assert isinstance(aws_provider, AwsProvider)
+
     @mock_aws
     def test_generate_regional_clients_all_enabled_regions(self):
         arguments = Namespace()