Vulnerability identifier: #VU93511

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-4106

CWE-ID: CWE-258

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FAST/TOOLS RVSVRN Package
Server applications / SCADA systems
FAST/TOOLS UNSVRN Package
Server applications / SCADA systems
FAST/TOOLS HMIWEB Package
Server applications / SCADA systems
FAST/TOOLS FTEES Package
Server applications / SCADA systems
FAST/TOOLS HMIMOB Package
Server applications / SCADA systems
CI Server
Server applications / SCADA systems

Vendor: Yokogawa

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the affected products have built-in accounts with no passwords set. A remote attacker can break into the affected product if the product is operated without a password set by default.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FAST/TOOLS RVSVRN Package: R9.01 - R10.04

FAST/TOOLS UNSVRN Package: R9.01 - R10.04

FAST/TOOLS HMIWEB Package: R9.01 - R10.04

FAST/TOOLS FTEES Package: R9.01 - R10.04

FAST/TOOLS HMIMOB Package: R9.01 - R10.04

CI Server: R1.01.00 - R1.03.00

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External links
http://web-material3.yokogawa.com/1/36059/files/YSAR-24-0001-E.pdf
http://www.cisa.gov/news-events/ics-advisories/icsa-24-179-03

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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 Internet.

Is there known malware, which exploits this vulnerability?

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