title: Meross MSS550X Missing Encryption of Sensitive Data
description: Meross Smart Wi-Fi 2 Way Wall Switch (MSS550X), on its 3.1.3 version and before, creates an open Wi-Fi Access Point without the required security measures in its initial setup. This could allow a remote attacker to obtain the Wi-Fi SSID as well as the password configured by the user from Meross app via Http/JSON plain request.
problem types: CWE-319 Cleartext Transmission of Sensitive Information
affected:
{
defaultStatus: unaffected
product: Meross Smart Wi-Fi 2 Way Wall Switch
vendor: Meross
versions:
lessThanOrEqual: 3.1.3, status: affected, version: 0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 7.4
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: NONE
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: This vulnerability has been solved by Meross in MSS550X version 3.2.3.