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CRITICAL · 9.8

CVE-2021-28911

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 lo...

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Bab-TechnologieEibport Firmware< 3.9.1
Bab-TechnologieEibportv3

Related Weaknesses (CWE)

CWE-307CWE-863

References

FAQ

What is CVE-2021-28911?

CVE-2021-28911 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 lo...

How severe is CVE-2021-28911?

CVE-2021-28911 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-28911?

Check the references section above for vendor advisories and patch information. Affected products include: Bab-Technologie Eibport Firmware, Bab-Technologie Eibport.