#VU58653 Weak password requirements in XMC20 and FOX61x - CVE-2021-40333

Vulnerability identifier: #VU58653

Vulnerability risk: Low

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-40333

CWE-ID: CWE-521

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
XMC20
Hardware solutions / Routers & switches, VoIP, GSM, etc
FOX61x
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Hitachi Energy

Description

The vulnerability allows an attacker to perform brute-force attack and guess the password.

The vulnerability exists due to weak password requirements. A remote administrator can perform a brute-force attack and gain unauthorized access to the DCN routing configuration.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

XMC20: before R15A

FOX61x: before R15A

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External links
https://search.abb.com/library/Download.aspx?DocumentID=8DBD000062&LanguageCode=en&DocumentPartId=&Action=Launch
https://search.abb.com/library/Download.aspx?DocumentID=8DBD000069&LanguageCode=en&DocumentPartId=&Action=Launch

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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