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CVE-2011-2371 is an integer overflow vulnerability in the JavaScript engine implementation of Array.reduceRight in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14. According to Mozilla Foundation Security Advisory 2011-22, if a JavaScript Array object's length is set to an extremely large value and reduceRight is then invoked, iteration over array elements can use an invalid index value when accessing element properties. This integer overflow can lead to attacker-controlled memory being executed, resulting in arbitrary code execution.
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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: 'mozilla_reduceright.rb', which exploits an integer overflow vulnerability in Mozilla Firefox 3.6's Array.reduceRight() method (CVE-2011-2371). The exploit is delivered via a malicious HTML/JavaScript page served by the Metasploit HTTP server. When a vulnerable Firefox browser visits the page, the JavaScript triggers the overflow, allowing for heap spraying and execution of arbitrary code (Metasploit payloads). The module targets Windows XP (no JAVA) and Vista/7 (with JAVA enabled), with specific ROP chains and memory pivots for each. The exploit is operational and allows the attacker to run arbitrary code in the context of the browser process. The repository is structured as a typical Metasploit exploit module, with all logic contained in a single Ruby file.
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2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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