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CVE-2015-3864 is an integer underflow vulnerability in Android’s Stagefright media framework, specifically in libstagefright within mediaserver. The flaw occurs in the MPEG4Extractor::parseChunk function (MPEG4Extractor.cpp) when parsing crafted MPEG-4 data, leading to incorrect arithmetic that can result in memory corruption. This memory corruption can be leveraged by a remote attacker to achieve arbitrary code execution in the context of the mediaserver process. The issue is noted as stemming from an incomplete fix for CVE-2015-3824 (Android internal bug 23034759).
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (3 hidden).
This repository contains a single Metasploit module: 'stagefright_mp4_tx3g_64bit.rb', which exploits CVE-2015-3864, an integer overflow vulnerability in the Stagefright media library (libstagefright.so) on Android devices. The exploit targets Android 5.0, 5.0.1, and 5.0.2 (notably on Nexus 7 and similar devices) and is delivered via a malicious HTML5 web page serving a specially crafted MP4 file. The exploit leverages a two-stage information leak to bypass ASLR and constructs a ROP chain dynamically to execute arbitrary code. The payload is customizable and typically results in a root shell on the device, provided SELinux is permissive or disabled. The module is written in Ruby and is designed to be used within the Metasploit framework. The only fingerprintable endpoint is the targeted library 'libstagefright.so'. The code is operational and not just a proof of concept, as it provides a working exploit with payload delivery.
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