Vulnerability identifier: #VU25532

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-2019-5153

CWE-ID: CWE-121

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 execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the "iw_webs" configuration parsing functionality. A remote authenticated attacker can send specially crafted commands, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

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-2019-0944

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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.