mirror of
https://github.com/prowler-cloud/prowler.git
synced 2026-07-23 12:31:54 +00:00
feat(s3): add new fixer s3_bucket_public_access_fixer (#6164)
Co-authored-by: MrCloudSec <hello@mistercloudsec.com>
This commit is contained in:
Daniel Barranquero
committed by
GitHub
GitHub
parent
83c204e010
commit
7d2c50991b
+46
@@ -0,0 +1,46 @@
|
||||
from prowler.lib.logger import logger
|
||||
from prowler.providers.aws.services.s3.s3_client import s3_client
|
||||
|
||||
|
||||
def fixer(resource_id: str, region: str) -> bool:
|
||||
"""
|
||||
Modify the S3 bucket's public access settings to block all public access.
|
||||
Specifically, this fixer configures the bucket's public access block settings to
|
||||
prevent any public access (ACLs and policies). Requires the s3:PutBucketPublicAccessBlock
|
||||
permission to modify the public access settings.
|
||||
Permissions:
|
||||
{
|
||||
"Version": "2012-10-17",
|
||||
"Statement": [
|
||||
{
|
||||
"Effect": "Allow",
|
||||
"Action": "s3:PutBucketPublicAccessBlock",
|
||||
"Resource": "*"
|
||||
}
|
||||
]
|
||||
}
|
||||
Args:
|
||||
resource_id (str): The S3 bucket name.
|
||||
region (str): AWS region where the S3 bucket exists.
|
||||
Returns:
|
||||
bool: True if the operation is successful (public access is blocked),
|
||||
False otherwise.
|
||||
"""
|
||||
try:
|
||||
regional_client = s3_client.regional_clients[region]
|
||||
regional_client.put_public_access_block(
|
||||
Bucket=resource_id,
|
||||
PublicAccessBlockConfiguration={
|
||||
"BlockPublicAcls": True,
|
||||
"IgnorePublicAcls": True,
|
||||
"BlockPublicPolicy": True,
|
||||
"RestrictPublicBuckets": True,
|
||||
},
|
||||
)
|
||||
except Exception as error:
|
||||
logger.error(
|
||||
f"{region} -- {error.__class__.__name__}[{error.__traceback__.tb_lineno}]: {error}"
|
||||
)
|
||||
return False
|
||||
else:
|
||||
return True
|
||||
+169
@@ -0,0 +1,169 @@
|
||||
from unittest import mock
|
||||
|
||||
from boto3 import client
|
||||
from moto import mock_aws
|
||||
|
||||
from tests.providers.aws.utils import (
|
||||
AWS_ACCOUNT_NUMBER,
|
||||
AWS_REGION_US_EAST_1,
|
||||
set_mocked_aws_provider,
|
||||
)
|
||||
|
||||
|
||||
class Test_s3_bucket_public_access_fixer:
|
||||
@mock_aws
|
||||
def test_no_buckets(self):
|
||||
from prowler.providers.aws.services.s3.s3_service import S3
|
||||
|
||||
aws_provider = set_mocked_aws_provider([AWS_REGION_US_EAST_1])
|
||||
|
||||
with mock.patch(
|
||||
"prowler.providers.common.provider.Provider.get_global_provider",
|
||||
return_value=aws_provider,
|
||||
):
|
||||
with mock.patch(
|
||||
"prowler.providers.aws.services.s3.s3_bucket_public_access.s3_bucket_public_access_fixer.s3_client",
|
||||
new=S3(aws_provider),
|
||||
):
|
||||
# Test Fixer
|
||||
from prowler.providers.aws.services.s3.s3_bucket_public_access.s3_bucket_public_access_fixer import (
|
||||
fixer,
|
||||
)
|
||||
|
||||
assert not fixer("bucket_test_us", AWS_REGION_US_EAST_1)
|
||||
|
||||
@mock_aws
|
||||
def test_bucket_public_ACL(self):
|
||||
s3_client = client("s3", region_name=AWS_REGION_US_EAST_1)
|
||||
bucket_name_us = "bucket_test_us"
|
||||
s3_client.create_bucket(Bucket=bucket_name_us)
|
||||
bucket_owner = s3_client.get_bucket_acl(Bucket=bucket_name_us)["Owner"]
|
||||
s3_client.put_public_access_block(
|
||||
Bucket=bucket_name_us,
|
||||
PublicAccessBlockConfiguration={
|
||||
"BlockPublicAcls": False,
|
||||
"IgnorePublicAcls": False,
|
||||
"BlockPublicPolicy": False,
|
||||
"RestrictPublicBuckets": False,
|
||||
},
|
||||
)
|
||||
s3_client.put_bucket_acl(
|
||||
Bucket=bucket_name_us,
|
||||
AccessControlPolicy={
|
||||
"Grants": [
|
||||
{
|
||||
"Grantee": {
|
||||
"URI": "http://acs.amazonaws.com/groups/global/AllUsers",
|
||||
"Type": "Group",
|
||||
},
|
||||
"Permission": "READ",
|
||||
},
|
||||
],
|
||||
"Owner": bucket_owner,
|
||||
},
|
||||
)
|
||||
from prowler.providers.aws.services.s3.s3_service import S3
|
||||
|
||||
aws_provider = set_mocked_aws_provider([AWS_REGION_US_EAST_1])
|
||||
|
||||
with mock.patch(
|
||||
"prowler.providers.common.provider.Provider.get_global_provider",
|
||||
return_value=aws_provider,
|
||||
):
|
||||
with mock.patch(
|
||||
"prowler.providers.aws.services.s3.s3_bucket_public_access.s3_bucket_public_access_fixer.s3_client",
|
||||
new=S3(aws_provider),
|
||||
):
|
||||
# Test Fixer
|
||||
from prowler.providers.aws.services.s3.s3_bucket_public_access.s3_bucket_public_access_fixer import (
|
||||
fixer,
|
||||
)
|
||||
|
||||
assert fixer(bucket_name_us, AWS_REGION_US_EAST_1)
|
||||
|
||||
@mock_aws
|
||||
def test_bucket_public_policy(self):
|
||||
s3_client = client("s3", region_name=AWS_REGION_US_EAST_1)
|
||||
bucket_name_us = "bucket_test_us"
|
||||
s3_client.create_bucket(Bucket=bucket_name_us)
|
||||
# Generate S3Control Client
|
||||
s3control_client = client("s3control", region_name=AWS_REGION_US_EAST_1)
|
||||
s3control_client.put_public_access_block(
|
||||
AccountId=AWS_ACCOUNT_NUMBER,
|
||||
PublicAccessBlockConfiguration={
|
||||
"BlockPublicAcls": False,
|
||||
"IgnorePublicAcls": False,
|
||||
"BlockPublicPolicy": False,
|
||||
"RestrictPublicBuckets": False,
|
||||
},
|
||||
)
|
||||
s3_client.put_public_access_block(
|
||||
Bucket=bucket_name_us,
|
||||
PublicAccessBlockConfiguration={
|
||||
"BlockPublicAcls": False,
|
||||
"IgnorePublicAcls": False,
|
||||
"BlockPublicPolicy": False,
|
||||
"RestrictPublicBuckets": False,
|
||||
},
|
||||
)
|
||||
public_write_policy = '{"Version": "2012-10-17","Id": "PutObjPolicy","Statement": [{"Sid": "PublicWritePolicy","Effect": "Allow","Principal": "*","Action": "s3:PutObject","Resource": "arn:aws:s3:::bucket_test_us/*"}]}'
|
||||
s3_client.put_bucket_policy(
|
||||
Bucket=bucket_name_us,
|
||||
Policy=public_write_policy,
|
||||
)
|
||||
from prowler.providers.aws.services.s3.s3_service import S3
|
||||
|
||||
aws_provider = set_mocked_aws_provider([AWS_REGION_US_EAST_1])
|
||||
|
||||
with mock.patch(
|
||||
"prowler.providers.common.provider.Provider.get_global_provider",
|
||||
return_value=aws_provider,
|
||||
):
|
||||
with mock.patch(
|
||||
"prowler.providers.aws.services.s3.s3_bucket_public_access.s3_bucket_public_access_fixer.s3_client",
|
||||
new=S3(aws_provider),
|
||||
):
|
||||
# Test Fixer
|
||||
from prowler.providers.aws.services.s3.s3_bucket_public_access.s3_bucket_public_access_fixer import (
|
||||
fixer,
|
||||
)
|
||||
|
||||
assert fixer(bucket_name_us, AWS_REGION_US_EAST_1)
|
||||
|
||||
@mock_aws
|
||||
def test_bucket_public_due_to_policy_conditions_from_public_ip(self):
|
||||
s3_client = client("s3", region_name=AWS_REGION_US_EAST_1)
|
||||
bucket_name_us = "bucket_test_us"
|
||||
s3_client.create_bucket(Bucket=bucket_name_us)
|
||||
s3_client.put_public_access_block(
|
||||
Bucket=bucket_name_us,
|
||||
PublicAccessBlockConfiguration={
|
||||
"BlockPublicAcls": False,
|
||||
"IgnorePublicAcls": False,
|
||||
"BlockPublicPolicy": False,
|
||||
"RestrictPublicBuckets": False,
|
||||
},
|
||||
)
|
||||
public_write_policy = '{"Version": "2012-10-17","Id": "PutObjPolicy","Statement": [{"Sid": "PublicWritePolicy","Effect": "Allow","Principal": "*","Action": "s3:PutObject","Resource": "arn:aws:s3:::bucket_test_us/*","Condition": {"IpAddress": {"aws:SourceIp": "1.2.3.4"}}}]}'
|
||||
s3_client.put_bucket_policy(
|
||||
Bucket=bucket_name_us,
|
||||
Policy=public_write_policy,
|
||||
)
|
||||
from prowler.providers.aws.services.s3.s3_service import S3
|
||||
|
||||
aws_provider = set_mocked_aws_provider([AWS_REGION_US_EAST_1])
|
||||
|
||||
with mock.patch(
|
||||
"prowler.providers.common.provider.Provider.get_global_provider",
|
||||
return_value=aws_provider,
|
||||
):
|
||||
with mock.patch(
|
||||
"prowler.providers.aws.services.s3.s3_bucket_public_access.s3_bucket_public_access_fixer.s3_client",
|
||||
new=S3(aws_provider),
|
||||
):
|
||||
# Test Fixer
|
||||
from prowler.providers.aws.services.s3.s3_bucket_public_access.s3_bucket_public_access_fixer import (
|
||||
fixer,
|
||||
)
|
||||
|
||||
assert fixer(bucket_name_us, AWS_REGION_US_EAST_1)
|
||||
Reference in New Issue
Block a user