CVE-2021-28911 Information disclosure in n/a
Unauthenticated attackers can access sensitive data in /tmp to calculate login IDs, facilitating brute force attacks and eventual SSH root access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-28911?
CVE-2021-28911 is a critical vulnerability in n/a, published on 9 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2021-28911?
It affects 1 product.
Products include Bab-Technologie Eibport Firmware.
How do I fix CVE-2021-28911?
No fix has been published for CVE-2021-28911 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-28911 being exploited?
There is no known exploitation of CVE-2021-28911 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2021-28909 Auth bypass in n/a
- CVE-2021-28913 Hardcoded credentials in n/a
- CVE-2021-28910 Server-side request forgery in n/a
- CVE-2020-24573 BAB TECHNOLOGIE GmbH eibPort V3 prior to 3.8.3 devices allow denial of service (Uncontrolled Resource Consumption) via requests to the lighttpd component.
- CVE-2021-28912 Hardcoded credentials in n/a
Sources
Also known as GHSA-45rc-fw3m-7fq5.