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S3Crets_Scanner - Hunting For Secrets Uploaded To Public S3 Buckets

| Post sponsored by FaradaySEC | Multiuser Pentest Environment


  • S3cret Scanner tool designed to provide a complementary layer for the Amazon S3 Security Best Practices by proactively hunting secrets in public S3 buckets.
  • Can be executed as scheduled task or On-Demand

Automation workflow

The automation will perform the following actions:

  1. List the public buckets in the account (Set with ACL of Public or objects can be public)
  2. List the textual or sensitive files (i.e. .p12, .pgp and more)
  3. Download, scan (using truffleHog3) and delete the files from disk, once done evaluating, one by one.
  4. The logs will be created in logger.log file.

Prerequisites

  1. Python 3.6 or above
  2. TruffleHog3 installed in $PATH
  3. An AWS role with the following permissions:
{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "VisualEditor0",
            "Effect": "Allow",
            "Action": [
                "s3:GetLifecycleConfiguration",
                "s3:GetBucketTagging",
                "s3:ListBucket",
                "s3:GetAccelerateConfiguration",
                "s3:GetBucketPolicy",
                "s3:GetBucketPublicAccessBlock",
                "s3:GetBucketPolicyStatus",
                "s3:GetBucketAcl",
                "s3:GetBucketLocation"
            ],
            "Resource": "arn:aws:s3:::*"
        },
        {
            "Sid": "VisualEditor1",
            "Effect": "Allow",
            "Action": "s3:ListAllMyBuckets",
            "Resource": "*"
        }
    ]
}
  1. If you're using a CSV file - make sure to place the file accounts.csv in the csv directory, in the following format:
Account name,Account id
prod,123456789
ci,321654987
dev,148739578

Getting started

Use pip to install the needed requirements.

# Clone the repo
git clone <repo>

# Install requirements
pip3 install -r requirements.txt

# Install trufflehog3
pip3 install trufflehog3

Usage

Argument Values Description Required
-p, --aws_profile The aws profile name for the access keys ✓
-r, --scanner_role The aws scanner's role name ✓
-m, --method internal the scan type ✓
-l, --last_modified 1-365 Number of days to scan since the file was last modified; Default - 1 ✗

Usage Examples

python3 main.py -p secTeam -r secteam-inspect-s3-buckets -l 1

Demo


Contributing

Pull requests and forks are welcome. For major changes, please open an issue first to discuss what you would like to change.



S3Crets_Scanner - Hunting For Secrets Uploaded To Public S3 Buckets S3Crets_Scanner - Hunting For Secrets Uploaded To Public S3 Buckets Reviewed by Zion3R on 8:30 AM Rating: 5