title: Second Order Command-injection Vulnerability in the Certificate-generation Function
description: TN-5900 Series firmware versions v3.3 and prior are vulnerable to the command-injection vulnerability. This vulnerability stems from insufficient input validation and improper authentication in the certification-generation function, which could potentially allow malicious users to execute remote code on affected devices.
problem types: CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
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: HIGH
baseScore: 7.2
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: Moxa has developed appropriate solution to address the vulnerability. The solution for affected products is shown below.
*  TN-5900 Series: Please upgrade to firmware v3.4 or higher.