#VU64683 Improper Enforcement of Behavioral Workflow in SEPCOS Single Package - CVE-2022-1667

Vulnerability identifier: #VU64683

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-1667

CWE-ID: CWE-841

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SEPCOS Single Package
Hardware solutions / Firmware

Vendor: Sécheron

Description

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

The vulnerability exists due to improper enforcement of behavioral workflow. A remote attacker can bypass client-side JavaScript controls by directly running a JS function to reboot the PLC or by loading the corresponding, browser accessible PHP script.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SEPCOS Single Package: before 1.23.21

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External links
https://www.cisa.gov/uscert/ics/advisories/icsa-22-174-03

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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.