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A remote code execution vulnerability exists in Linux Mint Xreader due to improper validation of user-supplied input when parsing CBT files. Specifically, the vulnerability arises from the use of unvalidated input in a system call, allowing an attacker to inject arguments and execute arbitrary code if a user opens a malicious CBT file or visits a malicious page.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository provides a fully functional exploit for CVE-2023-44452 and CVE-2023-51698, targeting a command injection vulnerability in the CBT file parsing logic of Atril and Xreader document viewers on various Linux distributions (notably those using MATE, Cinnamon, and some XFCE environments). The exploit consists of a Bash script ('exploit.sh') that generates a malicious CBT (comic book archive) file containing a payload that, when opened or previewed by a vulnerable document viewer, executes a reverse shell connecting back to the attacker's machine. The script also sets up a local web server (on port 8888) to serve the malicious file and provides a ready-to-use HTML page for social engineering delivery. The README.md provides detailed background, affected products, and exploitation scenarios. The exploit leverages the '--checkpoint-action' option in the tar command, which is improperly handled by the vulnerable software, allowing arbitrary command execution. The repository is operational and can be used to gain shell access to affected systems with minimal user interaction (in some cases, just previewing the file is sufficient).
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