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A buffer overflow exists in the authentication function of Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000. Remote attackers can exploit this vulnerability by sending a specially crafted, overly long request to TCP port 1433, resulting in the execution of arbitrary code. This issue is commonly referred to as the "Hello" overflow due to its location in the initial handshake process.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a single Metasploit module: 'MS02-056 Microsoft SQL Server Hello Overflow'. The exploit targets a buffer overflow vulnerability in Microsoft SQL Server 2000 and MSDE (<= SP2) via malformed data sent to TCP port 1433. The module is written in Ruby and leverages the Metasploit framework's MSSQL support. It allows unauthenticated remote attackers to execute arbitrary code with SYSTEM privileges. The exploit constructs a specially crafted packet, overflows a buffer, and delivers a customizable Metasploit payload. The only fingerprintable endpoint is the default SQL Server TCP port 1433. The module is operational and can be used to gain full control of vulnerable SQL Server instances. The code is well-structured, with clear separation of initialization, vulnerability check, and exploitation logic.
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