CVE intelligence and bounded remediation

CVE-2019-9101 — Moxa Mb3170 Firmware security vulnerability

High CVSS 8.8

An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1, MB3660 devices before 2.3, and MB3180 devices before 2.1. Sensitive information is sent to the web server in cleartext, which may allow an attacker to discover the credentials if they are able to observe traffic between the web browser and the server.

Severity
High
CVSS
8.8 (3.0)
Published
2020-03-11
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-319

Affected products

  • moxa / mb3170_firmware
  • moxa / mb3270_firmware
  • moxa / mb3180_firmware
  • moxa / mb3280_firmware
  • moxa / mb3480_firmware
  • moxa / mb3660_firmware

Matched remediation archetype

Cryptography, certificate, signature, and channel validation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Inventory affected algorithms, key uses, trust stores, certificate validation settings, random sources, and plaintext channels across clients and services.
  • Determine which secrets, identities, signatures, or data protections depend on the affected primitive or validation path.
  • Check debug, compatibility, fallback, and hostname or audience override settings in build and runtime configuration.

Remediate safely

  • Use a maintained platform cryptographic API with approved algorithms, modes, parameters, randomness, and full peer identity validation.
  • Remove insecure fallback and validation bypasses; separate keys by purpose and load them from managed secret storage.
  • Plan rotation or reissuance for affected keys, certificates, tokens, hashes, or ciphertext and document compatibility sequencing.

Authoritative sources

Complete CVE record and remediation plan

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