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An integer overflow vulnerability exists in the CoreGraphics component of Apple iOS before 8.1.3, OS X before 10.10.2, and Apple TV before 7.0.3. The flaw is triggered when processing a specially crafted PDF document, leading to memory corruption. This can allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via a malicious PDF.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is a proof-of-concept exploit for CVE-2014-4481, a heap overflow vulnerability in Apple's CoreGraphics framework when parsing CCITT group 3 encoded data in PDF files. The exploit is structured as a small web server (run.py) that serves an HTML form (index.html) to collect exploit parameters (shellcode address, dyld_shared_cache base, version). When the form is submitted, it triggers the CGI script (cgi-bin/crash.pdf), which invokes mkCrash.py to generate a malicious PDF on the fly using miniPDF.py for PDF construction. The PDF is crafted to exploit the memory corruption vulnerability, potentially leading to arbitrary code execution in Mobile Safari on vulnerable iOS devices. The repository includes all necessary components: PDF generation, web interface, and CGI delivery mechanism. The exploit is a POC and requires user interaction (opening the PDF in Safari).
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