SMB Write Checker

Bash script to recursively check for writable directories within an SMB share by attempting to upload a test file to each directory found. Writable directories are highlighted in green for easy identification.

Features

• Recursively lists directories in an SMB share.
• Attempts to upload a test file to check for write access.
• Highlights writable directories in green for easy visibility.

Requirements

• smbclient from the Samba suite.

Installation

1. Clone this repository:

   git clone https://github.com/808ale/smb_write_checker.git
   cd smb_write_checker

2. Ensure smbclient is installed on your system:

   • On Ubuntu/Debian:

     sudo apt install smbclient

   • On CentOS/RHEL:

     sudo yum install samba-client

3. Make the script executable:

   chmod +x smb_write_checker.sh

Usage

Run the script with the following arguments:

./smb_write_checker.sh -t <target> -s <share> -u <username> -p <password>

Arguments

• -t Target: The SMB server address (e.g., sizzle.htb.local).
• -s Share: The name of the SMB share to scan (e.g., Department Shares).
• -u Username: The username for SMB authentication.
• -p Password: The password for the provided username (can be empty if no password is required).

Example

./smb_write_checker.sh -t sizzle.htb.local -s "Department Shares" -u guest -p ""

Output

• The script will print a list of directories being tested.

• Writable directories will be highlighted in green with the message:

  [+] Writable: /path/to/directory
  

License

This project is licensed under the MIT License - see the LICENSE file for details.

Disclaimer

This tool is intended for educational purposes only. Ensure you have permission to test any SMB shares you are scanning.