#VU62778 Improper Authentication in Yokogawa products - CVE-2022-26034

Vulnerability identifier: #VU62778

Vulnerability risk: Low

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

CVE-ID: CVE-2022-26034

CWE-ID: CWE-287

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
CENTUM VP
Web applications / Remote management & hosting panels
CENTUM VP Entry Class
Hardware solutions / Firmware
ProSafe-RS
Hardware solutions / Firmware

Vendor: Yokogawa

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to improper authentication of the communication protocol provided by the Automation Design (AD) server. A remote attacker on the local network can leakage or tampering of data managed by the AD server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CENTUM VP: R6.01.10 - R6.09.00

CENTUM VP Entry Class: R6.01.10 - R6.09.00

ProSafe-RS: R4.01.00 - R4.07.00

---

External links
http://jvn.jp/vu/JVNVU99204686/index.html
http://web-material3.yokogawa.com/1/32463/files/YSAR-22-0004-E.pdf?_ga=2.143762992.424376056.1651645224-1390463896.1651645224

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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