Vulnerability identifier: #VU25533

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-5162

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
AWK-3131A Series
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Moxa

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the "iw_webs" account settings functionality. A specially crafted user name entry can cause the overwrite of an existing user account password. A remote authenticated attacker can send specially crafted commands, bypass implemented security restrictions and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

AWK-3131A Series: 1.13

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External links
http://www.moxa.com/en/support/support/security-advisory/awk-3131a-series-industrial-ap-bridge-client-vulnerabilities
http://talosintelligence.com/vulnerability_reports/TALOS-2019-0955

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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.