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A stack-based buffer overflow exists in the Ultra.OfficeControl ActiveX control (OfficeCtrl.ocx) version 2.0.2008.801, used by Ultra Shareware Ultra Office Control. The vulnerability is triggered by passing overly long values to the strUrl, strFile, or strPostData parameters of the HttpUpload method, allowing an attacker to overwrite stack memory and potentially execute arbitrary code.
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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 targeting a stack-based buffer overflow vulnerability (CVE-2008-3878) in Ultra Shareware's Office Control ActiveX (OfficeCtrl.ocx). The exploit is delivered via a malicious HTTP server that serves a specially crafted HTML/JavaScript page. When a victim visits the page using a browser that supports ActiveX (typically Internet Explorer on Windows), the script instantiates the vulnerable ActiveX control and triggers the buffer overflow in the HttpUpload method. The exploit uses a heap spray technique in JavaScript to place the payload in memory, bypassing input restrictions. The payload is customizable and provided by the Metasploit framework, allowing for arbitrary code execution on the target system. The module is operational and requires the victim to visit the attacker's web page. The main fingerprintable endpoints are the OfficeCtrl.ocx file, its CLSID, and ProgID. The repository is structured as a single Ruby file following Metasploit's exploit module conventions.
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