Vulnerability identifier: #VU61676

Vulnerability risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21808

CWE-ID: CWE-22

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
CENTUM VP
Web applications / Remote management & hosting panels
CENTUM CS 3000
Web applications / Remote management & hosting panels
Exaopc
Web applications / CMS
CENTUM CS 3000 Entry Class
Hardware solutions / Firmware
CENTUM VP Entry Class
Hardware solutions / Firmware

Vendor: Yokogawa

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker on the local network can send a specially crafted packet to a CAMS for HIS server and read and write arbitrary files on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CENTUM VP: R4.01 - R6.08

Exaopc: R3.72 - R3.78

CENTUM CS 3000: R3.08.10 - R3.09.00

CENTUM CS 3000 Entry Class: R3.08.10 - R3.09.00

CENTUM VP Entry Class: R4.01 - R6.08

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External links
http://ics-cert.us-cert.gov/advisories/icsa-22-083-01
http://web-material3.yokogawa.com/1/32094/files/YSAR-22-0001-E.pdf

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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