title: TN-5900 Series User Enumeration Vulnerability
description: TN-5900 Series version 3.3 and prior versions is vulnearble to user enumeration vulnerability. The vulnerability may allow a remote attacker to determine whether a user is valid during password recovery through the web login page and enable a brute force attack with valid users.
problem types: CWE-204 Observable Response Discrepancy
affected:
{
defaultStatus: unaffected
product: TN-5900 Series
vendor: Moxa
versions:
lessThanOrEqual: 3.3, status: affected, version: 1.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: Moxa has developed appropriate solutions to address the vulnerabilities. The solutions for affected products are shown below:
*  TN-5900 Series: Please upgrades to firmware version 3.4 or later.