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ICSA-25-121-01: KUNBUS GmbH Revolution Pi (Update A) ↗ source

May 1, 2025 CISA ICS Advisory

Summary

Successful exploitation of these vulnerabilities could allow attackers to bypass authentication, gain unauthorized access to critical functions, and execute malicious server-side includes (SSI) within a web page. CVE-2025-24522: KUNBUS Revolution Pi OS Bookworm 01/2025 is vulnerable because authentication is not configured by default for the Node-RED server. This can give an unauthenticated remote attacker full access to the Node-RED server where they can run arbitrary commands on the underlying operating system. CVE-2025-32011: KUNBUS PiCtory versions 2.5.0 through 2.11.1 have an authentication bypass vulnerability where a remote attacker can bypass authentication to get access due to a path traversal. CVE-2025-35996: KUNBUS PiCtory version 2.11.1 and earlier are vulnerable when an authenticated remote attacker crafts a special filename that can be stored by API endpoints. That filename is later transmitted to the client in order to show a list of configuration files. Due to a missing escape or sanitization, the filename could be executed as HTML script tag resulting in a cross-site-scripting attack. CVE-2025-36558: KUNBUS PiCtory version 2.11.1 and earlier are vulnerable to a cross-site-scripting attack via the sso_token used for authentication.

Advisory Details CISA ICS CSAF feed

Advisory ID
ICSA-25-121-01
Status
Final · version 2
Initial release
2025-05-01
Last revised
2025-07-10 (2 revisions)
Vendor
KUNBUS
Critical infrastructure sectors
Critical Manufacturing, Energy, Transportation Systems, Water and Wastewater Systems
Deployed
Worldwide
Vendor headquarters
Germany

No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.

Credit: Adam Bromiley (Pen Test Partners)

Affected products (2)
  • Revolution Pi OS Bookworm — <=01/2025
  • Revolution Pi PiCtory — >=2.5.0|<=2.11.1, <=2.11.1
Revision history (2)
  • 2025-07-10 — v2: Update A - Added the new image release for Revolution Pi OS Bookworm in the mitigations.
  • 2025-05-01 — v1: Initial Publication

From CISA's machine-readable CSAF 2.0 advisory (JSON).

Vulnerabilities as Stated by the Advisory

CVEWeaknessCVSS v3Details
CVE-2025-24522 CWE-306 Missing Authentication for Critical Function 10.0 Critical KUNBUS Revolution Pi OS Bookworm 01/2025 is vulnerable because authentication is not configured by default for the Node-RED server. This can give an unauthenticated remote attacker full access to the Node-RED server where they can run arbitrary commands on the underlying operating system.

Mitigation: KUNBUS has identified the following specific mitigations that users can apply to reduce risk:

Mitigation: Update PiCtory package to version 2.12

Mitigation: The preferred method for updating to version 2.12 is accomplished through KUNBUS's management UI Cockpit. However, users can also download the update package here. ↗

Affected, fixed & timeline

Affected:

  • Revolution Pi OS Bookworm <=01/2025

Vendor fix: KUNBUS released a new image for Revolution Pi OS Bookworm on 04/30/2025. Users can download the updated image here.

Mitigation: By end of April 2025, KUNBUS plans to release a new Cockpit plugin that helps the user to make configurations which are available in a graphical interface. In the meantime, it is recommended that users activate authentication. Please refer to this guide for help with activating authentication.

CVE-2025-32011 CWE-305 Authentication Bypass by Primary Weakness 9.8 Critical KUNBUS PiCtory versions 2.5.0 through 2.11.1 have an authentication bypass vulnerability where a remote attacker can bypass authentication to get access due to a path traversal.

Mitigation: KUNBUS has identified the following specific mitigations that users can apply to reduce risk:

Mitigation: Update PiCtory package to version 2.12

Mitigation: The preferred method for updating to version 2.12 is accomplished through KUNBUS's management UI Cockpit. However, users can also download the update package here. ↗

Affected, fixed & timeline

Affected:

  • Revolution Pi PiCtory >=2.5.0|<=2.11.1

Mitigation: By end of April 2025, KUNBUS plans to release a new Cockpit plugin that helps the user to make configurations which are available in a graphical interface. In the meantime, it is recommended that users activate authentication. Please refer to this guide for help with activating authentication.

CVE-2025-35996 CWE-97 Improper Neutralization of Server-Side Includes (SSI) Within a Web Page 9.0 Critical KUNBUS PiCtory version 2.11.1 and earlier are vulnerable when an authenticated remote attacker crafts a special filename that can be stored by API endpoints. That filename is later transmitted to the client in order to show a list of configuration files. Due to a missing escape or sanitization, the filename could be executed as HTML script tag resulting in a cross-site-scripting attack.

Mitigation: KUNBUS has identified the following specific mitigations that users can apply to reduce risk:

Mitigation: Update PiCtory package to version 2.12

Mitigation: The preferred method for updating to version 2.12 is accomplished through KUNBUS's management UI Cockpit. However, users can also download the update package here. ↗

Affected, fixed & timeline

Affected:

  • Revolution Pi PiCtory <=2.11.1

Mitigation: By end of April 2025, KUNBUS plans to release a new Cockpit plugin that helps the user to make configurations which are available in a graphical interface. In the meantime, it is recommended that users activate authentication. Please refer to this guide for help with activating authentication.

CVE-2025-36558 CWE-97 Improper Neutralization of Server-Side Includes (SSI) Within a Web Page 6.1 Medium KUNBUS PiCtory version 2.11.1 and earlier are vulnerable to a cross-site-scripting attack via the sso_token used for authentication. If an attacker provides the user with a PiCtory URL containing an HTML script as an sso_token, that script will reply to the user and be executed.

Mitigation: KUNBUS has identified the following specific mitigations that users can apply to reduce risk:

Mitigation: Update PiCtory package to version 2.12

Mitigation: The preferred method for updating to version 2.12 is accomplished through KUNBUS's management UI Cockpit. However, users can also download the update package here. ↗

Affected, fixed & timeline

Affected:

  • Revolution Pi PiCtory <=2.11.1

Mitigation: By end of April 2025, KUNBUS plans to release a new Cockpit plugin that helps the user to make configurations which are available in a graphical interface. In the meantime, it is recommended that users activate authentication. Please refer to this guide for help with activating authentication.

Scores and weakness types are as CISA or the republishing vendor stated them in this advisory; the linked CVE pages carry the independently enriched CVSS and SSVC assessments.

News Coverage

No coverage found in monitored research blogs or news feeds.

CVEs Referenced in This Publication

CVECVSSAffected
CVE-2025-24522 10.0 Critical KUNBUS GmbH Revolution Pi OS Bookworm KUNBUS Revolution Pi OS Bookworm 01/2025 is vulnerable because authentication is not configured by default for the Node-RED server. This can give an …
CVE-2025-32011 9.8 Critical KUNBUS GmbH Revolution Pi PiCtory KUNBUS PiCtory versions 2.5.0 through 2.11.1 have an authentication bypass vulnerability where a remote attacker can bypass authentication to get acc…
CVE-2025-35996 9.0 Critical KUNBUS GmbH Revolution Pi PiCtory KUNBUS PiCtory version 2.11.1 and earlier are vulnerable when an authenticated remote attacker crafts a special filename that can be stored by API en…
CVE-2025-36558 6.1 Medium KUNBUS GmbH Revolution Pi PiCtory KUNBUS PiCtory version 2.11.1 and earlier are vulnerable to a cross-site-scripting attack via the sso_token used for authentication. If an attacker p…

Named by the advisory itself. Each CVE links to its tracked detail page.

Vendors Named in This Publication

No KEV-catalogued vendors are named in this publication.