PT-2020-1758 · Moxa · Moxa Awk-3131A

Published 2020-02-25 · Updated 2022-06-13 · CVE-2019-5165

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Moxa AWK-3131A firmware version 1.13

Description An authentication bypass issue exists due to errors in hostname processing. This can be exploited by a remote attacker who sends specially crafted SNMP requests, potentially leading to a bypass of web authentication and privilege escalation. The vulnerability can be triggered by configuring a device hostname in a specific way, causing the device to misinterpret remote traffic as local traffic.

Recommendations For Moxa AWK-3131A firmware version 1.13, consider disabling SNMP requests or restricting access to the device until a patch is available. As a temporary workaround, avoid using specially configured device hostnames that could trigger this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Authentication

Authentication Bypass Using an Alternate Path or Channel

Weakness Enumeration

CWE-287

CWE-288

Related Identifiers

BDU:2020-00998

CVE-2019-5165

Affected Products

Moxa Awk-3131A

References · 7

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2019-0960 · Exploit
• https://osv.dev/vulnerability/CVE-2019-5165 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-5165 · Security Note
• https://bdu.fstec.ru/vul/2020-00998 · Security Note
• https://moxa.ru/novosti/tidings/prod/ustranenie-uyazvimostej-tochek-dostupa-moxa-awk-3131a · Note
• https://t.me/cvenotify/1213 · Telegram Post
• https://moxa.com/en/support/support/security-advisory/awk-3131a-series-industrial-ap-bridge-client-vulnerabilities · Note