8.8
CWE
284
Advisory Published
Updated

CVE-2021-23845: B426 Web Configuration Authentication Bypass

First published: Fri Jun 18 2021(Updated: )

This vulnerability could allow an attacker to hijack a session while a user is logged in the configuration web page. This vulnerability was discovered by a security researcher in B426 and found during internal product tests in B426-CN/B429-CN, and B426-M and has been fixed already starting from version 3.08 on, which was released on June 2019.

Credit: psirt@bosch.com

Affected SoftwareAffected VersionHow to fix
Bosch B426 Firmware<03.08
Bosch B426
Bosch B426-cn Firmware<03.08
Bosch B426-cn
Bosch B429-cn Firmware<03.08
Bosch B429-cn
Bosch B426-m Firmware<03.10
Bosch B426-m

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Frequently Asked Questions

  • What is CVE-2021-23845?

    CVE-2021-23845 is a vulnerability that could allow an attacker to hijack a session while a user is logged in the configuration web page.

  • Which software versions are affected by CVE-2021-23845?

    CVE-2021-23845 affects Bosch B426 Firmware up to version 03.08, Bosch B426-cn Firmware up to version 03.08, and Bosch B426-m Firmware up to version 03.10.

  • What is the severity of CVE-2021-23845?

    CVE-2021-23845 has a severity rating of 8.8 (high).

  • How can I fix CVE-2021-23845?

    To fix CVE-2021-23845, you should update your Bosch B426 Firmware to a version greater than 03.08, or Bosch B426-cn Firmware to a version greater than 03.08, or Bosch B426-m Firmware to a version greater than 03.10.

  • Where can I find more information about CVE-2021-23845?

    You can find more information about CVE-2021-23845 at the following reference: https://psirt.bosch.com/security-advisories/bosch-sa-196933-bt.html.

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