Headline
CVE-2023-41047: Merge branch 'bug/gcode_script_vuln' into staging/bugfix · OctoPrint/OctoPrint@d0072cf
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.
Expand Up @@ -593,9 +593,10 @@ def _get_default_folder(self, type): return folder
def _init_script_templating(self): from jinja2 import BaseLoader, ChoiceLoader, Environment, TemplateNotFound from jinja2 import BaseLoader, ChoiceLoader, TemplateNotFound from jinja2.ext import Extension from jinja2.nodes import Include from jinja2.sandbox import SandboxedEnvironment
from octoprint.util.jinja import FilteredFileSystemLoader
Expand Down Expand Up @@ -664,9 +665,9 @@ def get_source(self, environment, template): def list_templates(self): return self._default.list_templates()
class RelEnvironment(Environment): class RelEnvironment(SandboxedEnvironment): def __init__(self, prefix_sep=":", *args, **kwargs): Environment.__init__(self, *args, **kwargs) super().__init__(*args, **kwargs) self._prefix_sep = prefix_sep
def join_path(self, template, parent): Expand Down
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### Impact OctoPrint versions up until and including 1.9.2 contain a vulnerability that allows malicious admins to configure a specially crafted [GCODE script](https://docs.octoprint.org/en/master/features/gcode_scripts.html) through the Settings 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. Please note that GCODE files uploaded to be printed are *not* affected! This vulnerability exclusively affects GCODE Scripts to be executed on connection to the printer, print pause, resume etc, as described [in the documentation](https://docs.octoprint.org/en/master/features/gcode_scripts.html), to be found under Settings > GCODE Scripts and configurable only by users with the `ADMIN` permission. ### Patches The vulnerability has been patched in version 1.9.3. ### Workar...