Unauthenticated Access to Sensitive Data and Brute Force Attack Vulnerability in BAB TECHNOLOGIE GmbH eibPort V3

CVE-2021-28911 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers access to /tmp path which contains some sensitive data (e.g. device serial number). Having those info, a possible loginId can be self-calculated in a brute force attack against BMX interface. This is usable and part of an attack chain to gain SSH root access.

Learn more about our Web Application Penetration Testing UK.