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s3.py
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s3.py
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import boto3
import json
# Text file path
txt_file_path = 'Vulnerability_Check_Results.txt'
boto3 = boto3.session.Session(profile_name="default")
count = 0
def write_to_txt(message):
with open(txt_file_path, 'a') as txtfile:
txtfile.write(f"{message}\n")
def check_public_s3_buckets():
s3 = boto3.client('s3')
global count
response = s3.list_buckets()
buckets = response['Buckets']
public_buckets = []
for bucket in buckets:
bucket_name = bucket['Name']
try:
policy_response = s3.get_bucket_policy(Bucket=bucket_name)
policy = json.loads(policy_response['Policy'])
# Check if the policy allows public access
if 'Statement' in policy:
for statement in policy['Statement']:
if 'Effect' in statement and statement['Effect'] == 'Allow' and 'Principal' in statement and \
statement['Principal'] == '*':
public_buckets.append(bucket_name)
break
except s3.exceptions.ClientError as e:
if e.response['Error']['Code'] == 'NoSuchBucketPolicy':
# No bucket policy, continue to the next bucket
continue
else:
# Other error, log and continue
write_to_txt(f'Error checking bucket policy for {bucket_name}: {e}')
if public_buckets:
count += 1
write_to_txt(f'[Vulnerability] Public S3 Buckets: {public_buckets}')
else:
write_to_txt("No buckets public")
def check_encryption_s3_buckets():
s3 = boto3.client('s3')
global count
response = s3.list_buckets()
buckets = response['Buckets']
unencrypted_buckets = []
for bucket in buckets:
bucket_name = bucket['Name']
try:
encryption_response = s3.get_bucket_encryption(Bucket=bucket_name)
except s3.exceptions.ClientError as e:
if e.response['Error']['Code'] == 'ServerSideEncryptionConfigurationNotFoundError':
unencrypted_buckets.append(bucket_name)
if unencrypted_buckets:
count += 1
write_to_txt(f'[Vulnerability] Unencrypted S3 Buckets: {unencrypted_buckets}')
else:
write_to_txt('Server side encryption is enabled for all buckets')
def check_versioning_s3_buckets():
s3 = boto3.client('s3')
global count
response = s3.list_buckets()
buckets = response['Buckets']
versioning_disabled_buckets = []
for bucket in buckets:
bucket_name = bucket['Name']
versioning_response = s3.get_bucket_versioning(Bucket=bucket_name)
if 'Status' in versioning_response and versioning_response['Status'] != 'Enabled':
versioning_disabled_buckets.append(bucket_name)
if versioning_disabled_buckets:
write_to_txt(f'Versioning Disabled S3 Buckets: {versioning_disabled_buckets}')
else:
write_to_txt("Versioning is enabled for all buckets")
def check_logging_s3_buckets():
s3 = boto3.client('s3')
global count
response = s3.list_buckets()
buckets = response['Buckets']
logging_disabled_buckets = []
for bucket in buckets:
bucket_name = bucket['Name']
logging_response = s3.get_bucket_logging(Bucket=bucket_name)
if 'LoggingEnabled' not in logging_response:
logging_disabled_buckets.append(bucket_name)
if logging_disabled_buckets:
count += 1
write_to_txt(f'[Vulnerability] Logging Disabled S3 Buckets: {logging_disabled_buckets}')
else:
write_to_txt('Logging is enabled for all buckets')
def run():
# Create a new text file or overwrite existing
with open(txt_file_path, 'a') as txtfile:
txtfile.write("\nS3 Vulnerability Check Results:\n\n")
check_public_s3_buckets()
check_encryption_s3_buckets()
check_versioning_s3_buckets()
check_logging_s3_buckets()
print(f'S3 Checks Completed')
write_to_txt(f'{count} vulnerabilities found.\n')