title: Incorrect Implementation of Authentication Algorithm Vulnerability
description: A vulnerability has been identified in NPort 6000 Series, making the authentication mechanism vulnerable. This vulnerability arises from the incorrect implementation of sensitive information protection, potentially allowing malicious users to gain unauthorized access to the web service.
problem types: CWE-303: Incorrect Implementation of Authentication Algorithm
affected:
{
defaultStatus: unaffected
product: NPort 6000 Series
vendor: Moxa
versions:
lessThanOrEqual: 1.21, status: affected, version: 1.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: The vulnerability has been addressed in FWR v2.0 and subsequent versions;  it does NOT exist in these firmware versions.
For the users still using version v1.x, refer to the  Hardening Guide https://www.moxa.com/en/products/industrial-edge-connectivity/serial-device-servers/terminal-servers/nport-6100-6200-series#resources  on Moxa’s website to:
*  Upgrade to the newest firmware version.
*  Disable the HTTP console.