medium
6.5
CWE
287
Advisory Published
Updated

CVE-2022-0910

First published: Tue May 24 2022(Updated: )

A downgrade from two-factor authentication to one-factor authentication vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.32 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, and VPN series firmware versions 4.32 through 5.21, that could allow an authenticated attacker to bypass the second authentication phase to connect the IPsec VPN server even though the two-factor authentication (2FA) was enabled.

Credit: security@zyxel.com.tw

Affected SoftwareAffected VersionHow to fix
Zyxel Vpn100 Firmware>=4.32<=5.21
Zyxel Vpn100
Zyxel Vpn1000 Firmware>=4.32<=5.21
Zyxel Vpn1000
Zyxel Vpn300 Firmware>=4.32<=5.21
Zyxel Vpn300
Zyxel Vpn50 Firmware>=4.32<=5.21
Zyxel Vpn50
Zyxel Atp100 Firmware>=4.32<=5.21
Zyxel Atp100
Zyxel Atp100w Firmware>=4.32<=5.21
Zyxel Atp100w
Zyxel Atp200 Firmware>=4.32<=5.21
Zyxel ATP200
Zyxel Atp500 Firmware>=4.32<=5.21
Zyxel Atp500
Zyxel Atp700 Firmware>=4.32<=5.21
Zyxel Atp700
Zyxel Atp800 Firmware>=4.32<=5.21
Zyxel Atp800
Zyxel Usg 110 Firmware>=4.32<=4.71
Zyxel Usg 110
Zyxel Usg 1100 Firmware>=4.32<=4.71
Zyxel Usg 1100
Zyxel Usg 1900 Firmware>=4.32<=4.71
Zyxel Usg 1900
Zyxel Usg 20w Firmware>=4.32<=4.71
Zyxel Usg 20w
Zyxel Usg 20w-vpn Firmware>=4.32<=4.71
Zyxel Usg 20w-vpn
Zyxel Usg 2200-vpn Firmware>=4.32<=4.71
Zyxel Usg 2200-vpn
Zyxel Usg 310 Firmware>=4.32<=4.71
Zyxel Usg 310
Zyxel Usg 40 Firmware>=4.32<=4.71
Zyxel Usg 40
Zyxel Usg 40w Firmware>=4.32<=4.71
Zyxel Usg 40w
Zyxel Usg 60 Firmware>=4.32<=4.71
Zyxel Usg 60
Zyxel Usg 60w Firmware>=4.32<=4.71
Zyxel Usg 60w
Zyxel Usg Flex 100 Firmware>=4.50<=5.21
Zyxel Usg Flex 100
Zyxel Usg Flex 100w Firmware>=4.50<=5.21
Zyxel Usg Flex 100w
Zyxel Usg Flex 200 Firmware>=4.50<=5.21
Zyxel Usg Flex 200
Zyxel Usg Flex 500 Firmware>=4.50<=5.21
Zyxel Usg Flex 500
Zyxel Usg Flex 700 Firmware>=4.50<=5.21
Zyxel Usg Flex 700
Zyxel Usg200 Firmware>=4.32<=4.71
Zyxel Usg200
Zyxel Usg20 Firmware>=4.32<=4.71
Zyxel Usg20
Zyxel Usg210 Firmware>=4.32<=4.71
Zyxel Usg210
Zyxel Usg2200 Firmware>=4.32<=4.71
Zyxel Usg2200
Zyxel Usg300 Firmware>=4.32<=4.71
Zyxel Usg300
Zyxel Usg310 Firmware>=4.32<=4.71
Zyxel Usg310

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