description: A vulnerability in specific versions of Zyxel NBG6818, NBG7815, WSQ20, WSQ50, WSQ60, and WSR30 firmware with pre-configured password management could allow an attacker to obtain root access of the device, if the local attacker dismantles the device and uses a USB-to-UART cable to connect the device, or if the remote assistance feature had been enabled by an authenticated user.
problem types: CWE-260: Password in Configuration File
affected:
{
product: NBG6818 series firmware
vendor: Zyxel
versions:
status: affected, version: 1.00(ABSC.0)C0 through 1.00(ABSC.4)C0
}
{
product: NBG7815 series firmware
vendor: Zyxel
versions:
status: affected, version: 1.00(ABSK.0)C0 through 1.00(ABSK.6)C0
}
{
product: WSQ20 series firmware
vendor: Zyxel
versions:
status: affected, version: 1.00(ABOF.0)C0 through 1.00(ABOF.10)C0
}
{
product: WSQ50 series firmware
vendor: Zyxel
versions:
status: affected, version: 1.00(ABKJ.0)C0 through 2.20(ABKJ.6)C0
}
{
product: WSQ60 series firmware
vendor: Zyxel
versions:
status: affected, version: 1.00(ABND.0)C0 through 2.20(ABND.7)C0
}
{
product: WSR30 series firmware
vendor: Zyxel
versions:
status: affected, version: 1.00(ABMY.0)C0 through 1.00(ABMY.11)C0
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 7.8
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
version: 3.1
]