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A use-after-free vulnerability exists in Foxit Reader before version 9.2 and PhantomPDF before version 9.2. The flaw, identified as V-88f4smlocs, allows an attacker to trigger a use-after-free condition, which can be exploited to achieve remote code execution. The vulnerability is due to improper management of object lifetimes in the affected software.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a working exploit for a use-after-free vulnerability in Foxit Reader (CPDF_Parser::m_pCryptoHandler). The exploit targets Foxit Reader 9.0.1.1049 x86 on Windows 7 and leverages a crafted PDF file with embedded JavaScript to achieve arbitrary code execution. The structure includes: - Python scripts (`generate-js.py`, `make-pdf-javascript.py`) to generate the JavaScript payload and embed it into a PDF using a custom PDF generation library (`mPDF.py`). - The JavaScript payload (`test.js`) performs heap spraying and uses a ROP chain to allocate executable memory and run shellcode. - The README provides detailed background on the PDF format, the vulnerability, exploitation steps, and environment requirements. - The attack vector is a malicious PDF file, and the exploit requires user interaction (opening the PDF and using the 'Sign' feature in Foxit Reader). - Notable fingerprintable endpoints include the crafted PDF (`bitcoins.pdf`), the generated exploit PDF (`test.pdf`), and a DLL loaded by Foxit Reader during exploitation. Overall, the repository demonstrates a reliable, operational exploit for a specific version of Foxit Reader, with all necessary scripts and payloads to reproduce the attack.
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