Vulnerability identifier: #VU81216

Vulnerability risk: Low

CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4202

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
EKI-1524-CE
Hardware solutions / Firmware
EKI-1522-CE
Hardware solutions / Firmware
EKI-1521-CE
Hardware solutions / Firmware

Vendor: Advantech Co., Ltd

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

EKI-1524-CE: 1.21

EKI-1522-CE: 1.21

EKI-1521-CE: 1.21

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External links
http://cyberdanube.com/en/en-st-polten-uas-multiple-vulnerabilities-in-advantech-eki-15xx-series/
http://seclists.org/fulldisclosure/2023/Aug/13
http://packetstormsecurity.com/files/174153/Advantech-EKI-1524-CE-EKI-1522-EKI-1521-Cross-Site-Scripting.html
http://www.cisa.gov/news-events/ics-advisories/icsa-23-269-04

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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