Vulnerability identifier: #VU80328

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-39979

CWE-ID: CWE-334

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MXsecurity
Server applications / Other server solutions

Vendor: Moxa

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to small space of random values. A remote attacker can bypass authentication process and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MXsecurity: 1.0 - 1.0.1

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External links
http://www.moxa.com/en/support/product-support/security-advisory/mpsa-230403-mxsecurity-series-multiple-vulnerabilities

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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.