CVE-2021-4161

ICSA-21-357-01 Moxa MGate Protocol Gateways

Description

The affected products contain vulnerable firmware, which could allow an attacker to sniff the traffic and decrypt login credential details. This could give an attacker admin rights through the HTTP web server.

Remediation

Solution:

  • Moxa has developed the following mitigations to address this vulnerability. Enable ‘HTTPS’ and disable the HTTP console function under ‘Console Settings’ Moxa also recommends users refer to Tech Note: Moxa Security Hardening Guide for MGate MB3000 Series

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Third-Party Advisory cisa.gov
Affected: Moxa MGate MB3180 Series
Affected: Moxa MGate MB3280 Series
Affected: Moxa MGate MB3480 Series
Published at:
Updated at:

References

Link Tags
https://www.cisa.gov/uscert/ics/advisories/icsa-21-357-01 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2021-4161?
CVE-2021-4161 has been scored as a critical severity vulnerability.
How to fix CVE-2021-4161?
To fix CVE-2021-4161: Moxa has developed the following mitigations to address this vulnerability. Enable ‘HTTPS’ and disable the HTTP console function under ‘Console Settings’ Moxa also recommends users refer to Tech Note: Moxa Security Hardening Guide for MGate MB3000 Series
Is CVE-2021-4161 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-4161 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4161?
CVE-2021-4161 affects Moxa MGate MB3180 Series, Moxa MGate MB3280 Series, Moxa MGate MB3480 Series.
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