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CVE-2023-43115 is a remote code execution vulnerability in Artifex Ghostscript through version 10.01.2. The vulnerability resides in the gdevijs.c component of GhostPDL, where crafted PostScript documents can switch to the IJS device or modify the IjsServer parameter even after the SAFER mode has been activated. This allows attackers to execute arbitrary commands by leveraging the IJS device's requirement to start an external server process, bypassing intended security restrictions.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository provides a proof-of-concept (POC) for CVE-2023-43115, a vulnerability in Ghostscript that allows arbitrary command execution via the IjsServer parameter in PostScript files. The repository contains two example PostScript files: one for Linux (attack_example_linux.ps) and one for Windows (attack_example_windows.ps). Each file demonstrates how to set the IjsServer parameter to a system command, which is then executed when the file is processed by a vulnerable Ghostscript instance. The README provides a detailed explanation of the vulnerability, its exploitation, and the fix. The exploit requires the target to process a malicious PostScript file with a vulnerable Ghostscript configuration (without -dSAFER or with LockSafetyParams disabled). The payloads are simple command executions: echoing text on Linux and launching calc.exe on Windows. No network endpoints are involved; the attack vector is local file execution.
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