A stack-based buffer overflow exists in nsum.exe, a component of the Windows Media Unicast Service in Microsoft Windows 2000 Server SP4. The vulnerability is triggered by sending specially crafted packets related to transport information, which can cause a buffer overflow on the stack, leading to potential code execution.
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This repository contains a single Metasploit module that exploits a stack buffer overflow vulnerability (CVE-2010-0478, MS10-025) in the Windows Media Unicast Service (NUMS.exe) version 4.1.0.3930, which is part of Windows Media Services 4.1 on Windows 2000 Server. The exploit works by sending a specially crafted FunnelConnect request to the service's default TCP port 1755, causing a buffer overflow and allowing arbitrary code execution as the 'NetShowServices' user. The module allows for customizable payloads, typical of Metasploit exploits, and includes logic to handle SEH (Structured Exception Handler) overwrites and payload injection. The exploit is operational and can be used to gain code execution on vulnerable systems, but exploitation will crash the service, requiring manual restart for further attempts. The repository is structured as a single Ruby file following Metasploit conventions, and is intended for use within the Metasploit Framework.
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