#VU76696 Incorrect permission assignment for critical resource in CONPROSYS HMI System - CVE-2023-28399

Vulnerability identifier: #VU76696

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-28399

CWE-ID: CWE-732

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
CONPROSYS HMI System
Other software / Other software solutions

Vendor: Contec

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to incorrect permission assignment for critical resource within the ACL (Access Control List). A local user can gain elevated privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CONPROSYS HMI System: 3.5.0 - 3.5.2

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External links
https://jvn.jp/en/vu/JVNVU93372935/index.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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