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CVE-2016-7190 is a memory corruption vulnerability in the Chakra JavaScript engine used by Microsoft Edge. The vulnerability can be triggered by a remote attacker through a specially crafted website, leading to arbitrary code execution or denial of service. The flaw is due to improper memory handling within the scripting engine, allowing an attacker to corrupt memory and execute code in the context of the current user.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository provides a comprehensive set of exploits and supporting patches for CVE-2016-7190, a heap overflow vulnerability in the Array.map() function of Microsoft ChakraCore JavaScript engine. The repository contains three main JavaScript exploit files: - `cve-2016-7190-mrdata-unlock.js`: Demonstrates a data-only attack to remap arbitrary memory as writable, allowing bypass of Control-flow Guard (CFGuard) by manipulating the .mrdata section and critical function pointers. - `cve-2016-7190-rip-hijack.js`: Exploits the vulnerability to hijack control flow by overwriting the vtable pointer of a Uint8Array object, leading to arbitrary code execution. - `ir-corruption/cve-2016-7190-ir-corruption.js`: Shows a data-only attack against the JIT compiler, modifying the intermediate representation (IR) to inject attacker-controlled native code into the JIT code cache. Supporting files include several patch files to reintroduce the vulnerability into ChakraCore and to facilitate debugging and exploitation. The README provides detailed background, exploitation strategies, and links to pre-built vulnerable binaries and symbols. The exploits require a vulnerable version of ChakraCore (with the provided patches applied) running on Windows 10 x64. The attack vectors are primarily local (via JavaScript execution in a browser or host environment), and the exploits provide powerful primitives for arbitrary memory access, code execution, and security feature bypass. No network endpoints are directly targeted, but several file and binary resources are referenced for setup and testing.
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