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CVE-2022-28672 is a vulnerability in Foxit PDF Reader 11.2.1.53537 that allows remote attackers to execute arbitrary code. The vulnerability exists in the handling of Doc objects, where the application fails to validate the existence of an object before performing operations on it. This can lead to a use-after-free or null pointer dereference scenario, enabling code execution when a user opens a malicious PDF or visits a malicious page.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains an exploit for CVE-2022-28672, a use-after-free vulnerability in Foxit PDF Reader's JavaScript engine. The exploit is delivered via a maliciously crafted PDF file (exploit.pdf) that embeds JavaScript code (mirrored in rce.js) to trigger the vulnerability and achieve remote code execution (RCE) on Windows systems. The JavaScript leverages JIT spraying and memory manipulation (using asm.js and SharedArrayBuffer) to place shellcode in memory, then triggers the vulnerability through crafted PDF form actions and field manipulations. The exploit is operational and demonstrates a working RCE payload, but does not appear to be weaponized for mass exploitation (e.g., no framework integration or payload customization). The repository is structured with a README describing the vulnerability and links to advisories and a demo, the exploit PDF, the JavaScript exploit code, and a license file. No network endpoints or external IPs/domains are present; the attack is file-based and targets local execution when the PDF is opened in a vulnerable Foxit PDF Reader.
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