Incorrect Implementation of Authentication Algorithm in Moxa NPort 6000 Series

1) Incorrect Implementation of Authentication Algorithm

EUVDB-ID: #VU82687

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5627

CWE-ID: CWE-303 - Incorrect Implementation of Authentication Algorithm

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to incorrect implementation of sensitive information protection. A remote attacker can gain unauthorized access to the web service.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

NPort 6000 Series: 1.21

External links

http://www.moxa.com/en/support/product-support/security-advisory/mpsa-232905-nport-6000-series-incorrect-implementation-of-authentication-algorithm-vulnerability

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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