Executing MSF Payloads via PowerShell Webshellery

With only the Public role, native SQL Server functions can enumerate AD users, groups, and computers; NetSPI ships PowerShell and Metasploit modules automating this via direct connections or SQLi.

This lab walkthrough shows how the IMPERSONATE privilege lets low-privileged SQL Server logins escalate to sysadmin through EXECUTE AS configurations, automated with Metasploit and PowerShell.

When databases are marked TRUSTWORTHY but ownership stays privileged, web app database users can escalate to sysadmin; the walkthrough includes PowerShell, Metasploit, and SQL injection automation.

A rewritten .aspx web shell embeds PowerShell for direct MSSQL connectivity, showing how much data a simple upload vulnerability exposes when multiple apps share a server, without full compromise.

Most enterprise data-centers house at least a few web servers that support Java Server Pages (JSP). In this blog, I’ll provide two JSP shell code examples and outline five common upload methods that can be used to get the shells onto vulnerable servers in order to execute arbitrary system commands.

The worst kind of vulnerability in your environment is the one you don’t know exists.