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A stack-based buffer overflow vulnerability exists in Advantech WebAccess versions prior to V8.2_20170817. The vulnerability is due to insufficient validation of the length of user-supplied data before copying it into a stack-based buffer. This flaw allows an attacker to overflow the buffer and potentially execute arbitrary code within the context of the affected process.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module targeting a stack buffer overflow vulnerability (CVE-2017-14016) in the Advantech WebAccess 8.2 Webvrpcs service. The exploit works by sending a specially crafted DCERPC request to the service running on TCP port 4592, triggering a buffer overflow and allowing for arbitrary code execution via a ROP chain and egghunter. The module is designed for Windows 7 x86 systems running the specified version of WebAccess. The payload is customizable and leverages Metasploit's payload framework, with a maximum size of 2048 bytes (excluding null bytes). The main attack vector is network-based, exploiting the DCERPC interface exposed by the Webvrpcs service. The code is operational and ready for use within the Metasploit framework, with all necessary targeting and exploitation logic self-contained in the provided Ruby file.
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