OctoPrint vulnerabilities

OctoPrint provides a web interface for controlling consumer 3D printers. OctoPrint versions up until and including 1.11.2 contain a vulnerability that allows an authenticated attacker to upload a file under a specially crafted filename that will allow arbitrary command execution if said filename becomes included in a command defined in a system event handler and said event gets triggered. If no event handlers executing system commands with uploaded filenames as parameters have been configured, this vulnerability does not have an impact. The vulnerability is patched in version 1.11.3.

A vulnerability was detected in OctoPrint 1.0.0/1.1.0 in the Flask Secret Key Handler component, involving the use of a hard-coded cryptographic key. The attack may be performed remotely. The issue is fixed in version 1.11.1 (patch b4699825d6ab92d5451e5b1e3a06dfb81f86e777).

OctoPrint version 1.0.0 has a vulnerability in the getSettings function in src/octoprint/server/ajax/settings.py, in the API Key Handler component. The manipulation causes information disclosure, and the attack can be carried out remotely. The exploit is publicly available, and the issue is fixed in version 1.1.0-rc1.

OctoPrint before versions 1.11.8 and 2.0.0rc3 has a parsing discrepancy between its custom Tornado upload handler and Flask/Werkzeug, allowing an attacker with FILE_UPLOAD permission to inject reserved internal upload fields via query parameters or parser differentials. Affected endpoints include /api/files/{local|sdcard}, /api/languages, /plugin/backup/restore, and /plugin/pluginmanager/upload_file.

OctoPrint prior to 1.11.8 and 2.0.0rc3, Suppressed Command notification popups use PNotify rendering for printer-controlled payload.command and payload.message values in src/octoprint/static/js/app/viewmodels/terminal.js without HTML escaping. An attacker who convinces a victim to print a crafted file can inject HTML and JavaScript into the notification, disrupt prints, read information available to the victim including sensitive settings when permitted, or perform actions in the victim's OctoPrint session.