Cross-site scripting in Moxa Hardware solutions

#VU56356 Cross-site scripting in Moxa Hardware solutions

Published: 2021-09-07

Vulnerability identifier: #VU56356

Vulnerability risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-39278

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vendor: Moxa

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 in the "Config Import Export" tab in the main menu. A remote attacker can trick the victim to follow a specially crafted link 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

WAC-2004: 1.7

WAC-1001: 2.1

WAC-1001-T: 2.1

OnCell G3470A-LTE-EU: 1.7

OnCell G3470A-LTE-EU-T: 1.7

TAP-323-EU-CT-T: 1.3

TAP-323-US-CT-T: 1.3

TAP-323-JP-CT-T: 1.3

WDR-3124A-EU: 2.3

WDR-3124A-EU-T: 2.3

WDR-3124A-US: 2.3

WDR-3124A-US-T: 2.3

External links
http://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-moxa-devices/

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.

Latest bulletins with this vulnerability

Multiple vulnerabilities in Moxa devices