Denial of service in Yokogawa Wide Area Communication Router

1) Use of insufficiently random values

EUVDB-ID: #VU65067

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-32284

CWE-ID: CWE-330 - Use of Insufficiently Random Values

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to use of insufficiently random values. A remote attacker cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Wide Area Communication Router (for AW810D) VI461: R12

External links

http://web-material3.yokogawa.com/19/32825/files/YSAR-22-0005-J.pdf
http://web-material3.yokogawa.com/1/32825/files/YSAR-22-0005-E.pdf
http://www.cisa.gov/uscert/ics/advisories/icsa-22-181-02
http://jvn.jp/vu/JVNVU95343906/index.html

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.