Vulnerability · Published Jun 18, 2021 · Assigned by bosch

CVE-2021-23845B426 Web Configuration Authentication Bypass

High 8.0

In plain English

A high-severity improper access control in B426-CN/B429- CN Firmware from Bosch. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).

Severity (CVSS 3.1)8.0High
Exploit odds (30 days)0.8%top 42.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
Bosch B426 Firmware unspecified – before 03.08
Bosch B426-CN/B429- CN Firmware unspecified – before 03.08
Bosch B426-M Firmware unspecified – before 03.10

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

References