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D-Link DIR-842V2 firmware version 1.0.3 contains a command-injection vulnerability in its file-import functionality. An attacker can import a crafted file to execute arbitrary commands on the affected device.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a working exploit for CVE-2023-33781, targeting the D-Link DIR-842V2 router (firmware v1.0.3). The exploit is implemented in a single Python script (exploit.py) and requires valid admin credentials for the router's web interface. The script automates the following steps: authenticating to the router, downloading the current configuration via the backup endpoint, modifying the configuration to enable the telnet service and set its shell to /bin/sh, repacking and uploading the modified configuration via the restore endpoint, rebooting the router, and finally connecting to the router's telnet service to obtain a root shell. The exploit leverages the router's backup/restore functionality to inject a payload into the configuration, resulting in arbitrary command execution. The only other file is a README.md, which documents the vulnerability, exploitation steps, and timeline. The exploit is operational and provides a shell on the target device if successful.
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