OctoPrint up to 1.9.2 GCODE special elements used in a template engine

Summaryinfo

A vulnerability was found in OctoPrint up to 1.9.2. It has been declared as problematic. This affects an unknown function of the component GCODE Handler. The manipulation results in improper neutralization of special elements used in a template engine. This vulnerability is known as CVE-2023-41047. Access to the local network is required for this attack. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in OctoPrint up to 1.9.2. Affected is some unknown processing of the component GCODE Handler. The manipulation with an unknown input leads to a improper neutralization of special elements used in a template engine vulnerability. CWE is classifying the issue as CWE-1336. The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

OctoPrint is a web interface for 3D printers. OctoPrint versions up until and including 1.9.2 contain a vulnerability that allows malicious admins to configure a specially crafted GCODE script that will allow code execution during rendering of that script. An attacker might use this to extract data managed by OctoPrint, or manipulate data managed by OctoPrint, as well as execute arbitrary commands with the rights of the OctoPrint process on the server system. OctoPrint versions from 1.9.3 onward have been patched. Administrators of OctoPrint instances are advised to make sure they can trust all other administrators on their instance and to also not blindly configure arbitrary GCODE scripts found online or provided to them by third parties.

The weakness was published 10/09/2023 as GHSA-fwfg-vprh-97ph. The advisory is available at github.com. This vulnerability is traded as CVE-2023-41047 since 08/22/2023. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1221 by the MITRE ATT&CK project.

Upgrading to version 1.9.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch d0072cff894509c77e243d6562245ad3079e17db is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• OctoPrint

Version

• 1.9.0
• 1.9.1
• 1.9.2

License

• open-source

Website

• Product: https://github.com/OctoPrint/OctoPrint/

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