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The RDS DataFactory component in Microsoft Data Access Components (MDAC), as used in IIS 3.x and 4.x, exposes unsafe methods that can be invoked remotely. This allows attackers to execute arbitrary commands on the affected system by abusing the exposed interfaces of the DataFactory object.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (2 hidden).
This repository contains a single Metasploit module (Ruby file) that exploits a critical remote code execution vulnerability in Microsoft IIS servers exposing the /msadc/msadcs.dll endpoint (CVE-1999-1011, MS99-025). The exploit leverages the MDAC RDS DataFactory service to inject and execute arbitrary commands on the target Windows system, supporting both Access and SQL Server backends. The module is highly weaponized, supporting staged payloads (such as Meterpreter), automated cleanup, and multiple exploitation techniques (VbBusObj and AdvancedDataFactory). It is configurable for different target paths, SQL credentials, and exploitation methods. The main attack vector is network-based, targeting HTTP endpoints on vulnerable IIS servers. The code is mature, operational, and part of the Metasploit framework, making it easily customizable and deployable for penetration testing or red teaming against legacy Windows IIS environments.
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