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CVE-2018-4416 refers to multiple memory corruption vulnerabilities in Apple products, including iOS, tvOS, watchOS, Safari, iTunes, and iCloud for Windows. The vulnerabilities are due to improper memory handling, which could potentially allow an attacker to execute arbitrary code or cause unexpected application termination. The issues were addressed by Apple with improved memory handling in the affected products.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a detailed write-up (README.org) and a JavaScript exploit (exp.js) targeting a type confusion vulnerability (CVE-2018-4416) in WebKit's JavaScriptCore (JSC) engine. The README provides background, setup instructions, and a step-by-step guide to compiling and testing JSC, as well as a discussion of the vulnerability and exploitation process. The main exploit code (exp.js) demonstrates a full browser exploit chain: it achieves type confusion to gain arbitrary read/write primitives, locates the JIT code region of a compiled JavaScript function, and injects x64 shellcode to achieve arbitrary code execution. The shellcode is designed to read the contents of /etc/passwd, demonstrating successful exploitation. The exploit is operational and requires a vulnerable JSC build, typically on Ubuntu 18.04 LTS. No network endpoints are hardcoded; the only fingerprintable endpoint is the file /etc/passwd, which is accessed by the shellcode. The exploit is not part of a framework and is a standalone proof-of-concept for browser exploitation research.
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