MSSqlPwner, an open-source pentesting tool designed specifically to interact with and exploit MSSQL servers, has gained attention for its unique capabilities. Developed on Impacket, this tool allows users to authenticate with databases using a variety of credentials, including clear-text passwords, NTLM hashes, and Kerberos tickets.
One of the main features of MSSqlPwner is its ability to execute custom commands on targeted servers using different methods. Whether it’s through custom assemblies, leveraging “xp_cmdshell,” or exploiting “sp_oacreate” (Ole Automation Procedures), this tool provides a range of options for penetration testers. Its flexibility has made it a valuable resource for assessing the security of MSSQL environments.
The process of using MSSqlPwner typically starts with recursive enumeration, where it analyzes linked servers and potential paths for impersonation to uncover potential command-execution chains. Additionally, MSSqlPwner supports NTLM relay attacks by making use of MSSQL functions like “xp_dirtree,” “xp_subdirs,” and “xp_fileexist,” showcasing its versatility in different penetration testing scenarios.
One of the key strengths of MSSqlPwner is its ability to facilitate lateral movement and assess linked servers even when the authenticated MSSQL user does not have the required permissions for certain operations. In such cases, MSSqlPwner can identify and create a viable execution chain. For example, if the user’s current context restricts direct command execution, the tool can leverage linked servers to escalate privileges and establish a connection back to the attacker’s server, enabling successful command execution.
The availability of MSSqlPwner for free on GitHub has contributed to its popularity among security professionals and ethical hackers. Its range of features and capabilities make it a valuable tool in penetration testing engagements, offering a comprehensive solution for assessing the security of MSSQL environments.
In conclusion, MSSqlPwner stands out as a powerful and versatile tool for pentesters looking to interact with MSSQL servers and exploit vulnerabilities. Its range of features, flexibility, and ability to facilitate lateral movement make it a valuable asset in assessing the security of MSSQL environments. With its availability as an open-source tool on GitHub, MSSqlPwner continues to be a go-to option for security professionals seeking to enhance their penetration testing capabilities.