Vulnerability identifier: #VU25524

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-5137

CWE-ID: CWE-321

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 decrypt sensitive information.

The vulnerability exists due to presence of a hard-coded cryptographic key within the "ServiceAgent" binary. A remote attacker can decrypt a captured traffic.

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-2019-0926

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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.