PT-2020-1748 · Moxa · Moxa Awk-3131A

Carl Hurd · Published 2020-02-25 · Updated 2022-06-13 · CVE-2019-5137

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

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

Description The issue is related to the usage of hard-coded cryptographic keys within the ServiceAgent binary, which allows for the decryption of captured traffic across the network from or to the Moxa AWK-3131A. This could enable a remote attacker to disclose protected information.

Recommendations For Moxa AWK-3131A firmware version 1.13, consider disabling the ServiceAgent binary until a patch is available to prevent potential exploitation. Restrict access to the network to minimize the risk of captured traffic being decrypted. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Using Hardcoded Credentials

Weakness Enumeration

CWE-798

CWE-321

Related Identifiers

BDU:2020-00988

CVE-2019-5137

Affected Products

Moxa Awk-3131A

References · 8

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2019-0926 · Exploit
• https://osv.dev/vulnerability/CVE-2019-5137 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-00988 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-5137 · Security Note
• https://moxa.ru/novosti/tidings/prod/ustranenie-uyazvimostej-tochek-dostupa-moxa-awk-3131a · Note
• https://t.me/cvenotify/1203 · Telegram Post
• https://moxa.com/en/support/support/security-advisory/awk-3131a-series-industrial-ap-bridge-client-vulnerabilities · Note
• https://t.me/cvenotify/31547 · Telegram Post