CVE-2021-28911

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.78% Top 20%
Third-Party Advisory github.io
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://psytester.github.io/CVE-2021-28911 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-28911?
CVE-2021-28911 has been scored as a critical severity vulnerability.
How to fix CVE-2021-28911?
To fix CVE-2021-28911, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-28911 being actively exploited in the wild?
It is possible that CVE-2021-28911 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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