Vulnerability identifier: #VU57087

Vulnerability risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-38454

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MXview
Client/Desktop applications / Other client software

Vendor: Moxa

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the affected product has a misconfigured service that allows remote connections to internal communication channels. A remote attacker can bypass implemented security restrictions and interact and use MQTT.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MXview: 3.2.2

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External links
http://ics-cert.us-cert.gov/advisories/icsa-21-278-03

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.