OctoPrint: Stored XSS via saved connection parameters

OctoPrint provides a web interface for controlling consumer 3D printers. From 2.0.0rc1 until 2.0.0rc7, an authenticated user can supply a crafted default port or baudrate through a connect request to the bundled Serial Connector plugin. OctoPrint persists these values in printerConnection.preferred.parameters.port or printerConnection.preferred.parameters.baudrate and renders them as HTML when another user views the saved connection parameters, allowing script execution in that user's browser and actions within the user's OctoPrint access. This issue is fixed in version 2.0.0rc7.

OctoPrint API Key settings.py getSettings information disclosure

A weakness has been identified in OctoPrint 1.0.0. This impacts the function getSettings of the file src/octoprint/server/ajax/settings.py of the component API Key Handler. This manipulation causes information disclosure. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 1.1.0-rc1 will fix this issue. Patch name: eccc9d6fbde0c46cdd6e255fd5ce9a30077ba954. You should upgrade the affected component. Affected is a 2013 release where access control was not yet implemented and the endpoint was part of first-run setup). The API key has been admin-gated since 1.2.0 and GET /api/settings is protected by Permissions.SETTINGS_READ plus reauthentication in all current releases.

OctoPrint Flask Secret Key hard-coded key

A security vulnerability has been detected in OctoPrint 1.0.0/1.1.0. Affected is an unknown function of the component Flask Secret Key Handler. Such manipulation leads to use of hard-coded cryptographic key . The attack may be performed from remote. Upgrading to version 1.11.1 is able to address this issue. The name of the patch is b4699825d6ab92d5451e5b1e3a06dfb81f86e777. The affected component should be upgraded.

** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: In the versions that have this feature, they are an admin-gated, admin-defined, by-design shell-command feature that is not an exploitable injection.

** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: The exact code first shipped in 1.6.0, does not exist in the cited 1.0.0, and in every version where it exists the claimed missing protection is already implemented.

OctoPrint: File exfiltration possible via query parameters on upload endpoints

OctoPrint provides a web interface for controlling consumer 3D printers. Prior to 1.11.8 and 2.0.0rc3, OctoPrint's custom Tornado upload handler and Flask with Werkzeug parse request parameters differently, allowing an attacker with FILE_UPLOAD permission to inject reserved internal upload fields through query parameters or parser differentials despite the earlier GHSA-m9jh-jf9h-x3h2 fix. The affected endpoints are /api/files/{local|sdcard}, /api/languages, /plugin/backup/restore, and /plugin/pluginmanager/upload_file. An attacker can make OctoPrint treat an arbitrary host file as a temporary upload, move it into a downloadable upload directory, disclose configuration secrets or other readable files, and remove runtime files in a way that can affect a later restart. This issue is fixed in versions 1.11.8 and 2.0.0rc3.

OctoPrint: XSS in Suppressed Command Notifications

OctoPrint provides a web interface for controlling consumer 3D printers. 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. This issue is fixed in versions 1.11.8 and 2.0.0rc3.

OctoPrint has Timing Side-Channel Vulnerability in API Key Authentication

OctoPrint provides a web interface for controlling consumer 3D printers. OctoPrint versions up to and including 1.11.5 are affected by a (theoretical) timing attack vulnerability that allows API key extraction over the network. Due to using character based comparison that short-circuits on the first mismatched character during API key validation, rather than a cryptographical method with static runtime regardless of the point of mismatch, an attacker with network based access to an affected OctoPrint could extract API keys valid on the instance by measuring the response times of the denied access responses and guess an API key character by character. The vulnerability is patched in version 1.11.6. The likelihood of this attack actually working is highly dependent on the network's latency, noise and similar parameters. An actual proof of concept was not achieved so far. Still, as always administrators are advised to not expose their OctoPrint instance on hostile networks, especially not on the public Internet.

OctoPrint-SpoolManager Plugin APIs do not enforce authentication

OctoPrint-SpoolManager is a plugin for managing spools and all their usage metadata. In versions 1.8.0a2 and older of the testing branch and versions 1.7.7 and older of the stable branch, the APIs of the OctoPrint-SpoolManager plugin do not correctly enforce authentication or authorization checks. This issue has been patched in versions 1.8.0a3 of the testing branch and 1.7.8 of the stable branch. The impact of this vulnerability is greatly reduced when using OctoPrint version 1.11.2 and newer.

OctoPrint is vulnerable to XSS through Action Command Notifications and Prompts

OctoPrint provides a web interface for controlling consumer 3D printers. Versions 1.11.3 and below are affected by a vulnerability that allows injection of arbitrary HTML and JavaScript into Action Command notifications and prompts popups generated by the printer. An attacker who successfully convinces a victim to print a specially crafted file could exploit this issue to disrupt ongoing prints, extract information (including sensitive configuration settings, if the targeted user has the necessary permissions for that), or perform other actions on behalf of the targeted user within the OctoPrint instance. This issue is fixed in version 1.11.4.

OctoPrint is Vulnerable to RCE Attacks via Unsanitized Filename in File Upload

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. As a workaround, OctoPrint administrators who have event handlers configured that include any kind of filename based placeholders should disable those by setting their `enabled` property to `False` or unchecking the "Enabled" checkbox in the GUI based Event Manager. Alternatively, OctoPrint administrators should set `feature.enforceReallyUniversalFilenames` to `true` in `config.yaml` and restart OctoPrint, then vet the existing uploads and make sure to delete any suspicious looking files. As always, OctoPrint administrators are advised to not expose OctoPrint on hostile networks like the public internet, and to vet who has access to their instance.

OctoPrint vulnerable to possible file extraction via upload endpoints

OctoPrint provides a web interface for controlling consumer 3D printers. OctoPrint versions up until and including 1.11.1 contain a vulnerability that allows an attacker with the FILE_UPLOAD permission to exfiltrate files from the host that OctoPrint has read access to, by moving them into the upload folder where they then can be downloaded from. This vulnerability is fixed in 1.11.2.

OctoPrint Vulnerable to Denial of Service through malformed HTTP request

OctoPrint versions up until and including 1.11.1 contain a vulnerability that allows any unauthenticated attacker to send a manipulated broken multipart/form-data request to OctoPrint and through that make the web server component become unresponsive. The issue can be triggered by a broken multipart/form-data request lacking an end boundary to any of OctoPrint's endpoints implemented through the octoprint.server.util.tornado.UploadStorageFallbackHandler request handler. The request handler will get stuck in an endless busy loop, looking for a part of the request that will never come. As Tornado is single-threaded, that will effectively block the whole web server. The vulnerability has been patched in version 1.11.2.

OctoPrint Authenticated Reverse Proxy Page Authentication Bypass

OctoPrint provides a web interface for controlling consumer 3D printers. In versions up to and including 1.10.3, OctoPrint has a vulnerability that allows an attacker to bypass the login redirect and directly access the rendered HTML of certain frontend pages. The primary risk lies in potential future modifications to the codebase that might incorrectly rely on the vulnerable internal functions for authentication checks, leading to security vulnerabilities. This issue has been patched in version 1.11.0.

OctoPrint Unverified Password Change via Access Control Settings

OctoPrint is a web interface for 3D printer.s OctoPrint versions up until and including 1.9.3 contain a vulnerability that allows malicious admins to change the password of other admin accounts, including their own, without having to repeat their password. An attacker who managed to hijack an admin account might use this to lock out actual admins from their OctoPrint instance. The vulnerability will be patched in version 1.10.0.

Unrestricted Upload of File with Dangerous Type in octoprint/octoprint

Unrestricted Upload of File with Dangerous Type in GitHub repository octoprint/octoprint prior to 1.8.3.

Insufficient Session Expiration in octoprint/octoprint

If an attacker comes into the possession of a victim's OctoPrint session cookie through whatever means, the attacker can use this cookie to authenticate as long as the victim's account exists.

Improper Privilege Management in octoprint/octoprint

Improper Privilege Management in GitHub repository octoprint/octoprint prior to 1.8.3.

Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in octoprint/octoprint

Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) in GitHub repository octoprint/octoprint prior to 1.8.3.

OctoPrint Authentication Bypass via X-Forwarded-For Header when autologinLocal is enabled

OctoPrint provides a web interface for controlling consumer 3D printers. OctoPrint versions up until and including 1.10.0 contain a vulnerability that allows an unauthenticated attacker to completely bypass the authentication if the `autologinLocal` option is enabled within `config.yaml`, even if they come from networks that are not configured as `localNetworks`, spoofing their IP via the `X-Forwarded-For` header. If autologin is not enabled, this vulnerability does not have any impact. The vulnerability has been patched in version 1.10.1. Until the patch has been applied, OctoPrint administrators who have autologin enabled on their instances should disable it and/or to make the instance inaccessible from potentially hostile networks like the internet.