CVE-2021-28911

CRITICAL

BAB TECHNOLOGIE eibPort V3 < 3.9.1 - Unauthenticated Sensitive Data Exposure in /tmp Path

Title source: llm
STIX 2.1

Description

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.

References (1)

Core 1
Core References
Third Party Advisory x_refsource_misc
https://psytester.github.io/CVE-2021-28911

Scores

CVSS v3 9.8
EPSS 0.0160
EPSS Percentile 72.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-307 CWE-863
Status published
Products (1)
bab-technologie/eibport_firmware < 3.9.1
Published Sep 09, 2021
Tracked Since Feb 18, 2026