With MSSqlPwner, users can execute custom commands through various methods, including custom assembly, xp_cmdshell, and sp_oacreate(Ole Automation Procedures) and much more.

The tool starts with recursive enumeration on linked servers and gather all the possible chains.

Also, the MSSqlPwner tool can be used for NTLM relay capabilities, utilizing functions such as xp_dirtree, xp_subdirs, xp_fileexist, and command execution.

This tool provide opportunities for lateral movement assessments and exploration of linked servers.

If the authenticated MSSQL user does not have permission to execute certain operations, the tool can find a chain that might allow the execution. For example, it can send a query to a linked server that returns back with a link to the authenticated MSSQL service with higher permissions. The tool also supports recursive querying via links to execute queries and commands on otherwise inaccessible linked servers directed from the compromised MSSQL service.

This tool is supported by multiple authentication methods and described below.

Disclaimer

This tool is designed for security professionals and researchers for testing purposes only and should not be used for illegal purposes.

Functionalities:

1. Command Execution: Execute commands using the following functions:

• xp_cmdshell on local server or on linked servers
• sp_oacreate (Ole Automation Procedures) on local server or on linked servers

2. NTLM Hash Stealing and Relay: Issue NTLM relay or steal NTLM hashes using the following functions:

• xp_dirtree on local server or on linked servers
• xp_subdirs on local server or on linked servers
• xp_fileexist on local server or on linked servers

3. Encapsulated Commands and Queries: Execute incapsulated commands or queries using the following options:

• execute_command on local server or on linked servers
• run_query on local server or on linked servers
• run_query_system_service on local server or on linked servers as system user

4. Direct Queries

• direct_query - execute direct queries on local or linked servers as system user.

Lateral Movement and Chain Exploration:

MSSqlPwner provides opportunities for lateral movement assessments and exploration of linked servers. In scenarios where the current session lacks administrative privileges, the tool attempts to find a chain that escalates its own privileges via linked servers. If a session on a linked server has higher privileges, the tool can interact with the linked server and perform a linked query back to the host with elevated privileges, enabling lateral movement with the target server.

Authentication Methods:

Supported by multiple authentication methods, including:

• Windows credentials
• MSSQL credentials
• Kerberos authentication
• Kerberos tickets
• NTLM Hashes

The tool adapts to various scenarios and environments, verifying the effectiveness of authentication mechanisms.

Take your MSSQL environment assessments to the next level with the power and versatility of MSSqlPwner. Discover new possibilities for lateral movement, stealthy querying, and precise security evaluations with this the MSSqlPwner tool.

Installation

git clone https://github.com/El3ct71k/MSSqlPwner
cd MSSqlPwner
pip3 install -r requirements.txt
python3 MSSqlPwner.py

Usage