Vulnerability Monitor

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CVE-2022-0910

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.

Published

2022-05-24T03:15:09.150

Last Modified

2024-11-21T06:39:39.087

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: NONE
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

8.0

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-287
  • Type: Primary
    CWE-287
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System zyxel vpn100_firmware ≤ 5.21 Yes
Hardware zyxel vpn100 - No
Operating System zyxel vpn1000_firmware ≤ 5.21 Yes
Hardware zyxel vpn1000 - No
Operating System zyxel vpn300_firmware ≤ 5.21 Yes
Hardware zyxel vpn300 - No
Operating System zyxel vpn50_firmware ≤ 5.21 Yes
Hardware zyxel vpn50 - No
Operating System zyxel atp100_firmware ≤ 5.21 Yes
Hardware zyxel atp100 - No
Operating System zyxel atp100w_firmware ≤ 5.21 Yes
Hardware zyxel atp100w - No
Operating System zyxel atp200_firmware ≤ 5.21 Yes
Hardware zyxel atp200 - No
Operating System zyxel atp500_firmware ≤ 5.21 Yes
Hardware zyxel atp500 - No
Operating System zyxel atp700_firmware ≤ 5.21 Yes
Hardware zyxel atp700 - No
Operating System zyxel atp800_firmware ≤ 5.21 Yes
Hardware zyxel atp800 - No
Operating System zyxel usg_110_firmware ≤ 4.71 Yes
Hardware zyxel usg_110 - No
Operating System zyxel usg_1100_firmware ≤ 4.71 Yes
Hardware zyxel usg_1100 - No
Operating System zyxel usg_1900_firmware ≤ 4.71 Yes
Hardware zyxel usg_1900 - No
Operating System zyxel usg_20w_firmware ≤ 4.71 Yes
Hardware zyxel usg_20w - No
Operating System zyxel usg_20w-vpn_firmware ≤ 4.71 Yes
Hardware zyxel usg_20w-vpn - No
Operating System zyxel usg_2200-vpn_firmware ≤ 4.71 Yes
Hardware zyxel usg_2200-vpn - No
Operating System zyxel usg_310_firmware ≤ 4.71 Yes
Hardware zyxel usg_310 - No
Operating System zyxel usg_40_firmware ≤ 4.71 Yes
Hardware zyxel usg_40 - No
Operating System zyxel usg_40w_firmware ≤ 4.71 Yes
Hardware zyxel usg_40w - No
Operating System zyxel usg_60_firmware ≤ 4.71 Yes
Hardware zyxel usg_60 - No
Operating System zyxel usg_60w_firmware ≤ 4.71 Yes
Hardware zyxel usg_60w - No
Operating System zyxel usg_flex_100_firmware ≤ 5.21 Yes
Hardware zyxel usg_flex_100 - No
Operating System zyxel usg_flex_100w_firmware ≤ 5.21 Yes
Hardware zyxel usg_flex_100w - No
Operating System zyxel usg_flex_200_firmware ≤ 5.21 Yes
Hardware zyxel usg_flex_200 - No
Operating System zyxel usg_flex_500_firmware ≤ 5.21 Yes
Hardware zyxel usg_flex_500 - No
Operating System zyxel usg_flex_700_firmware ≤ 5.21 Yes
Hardware zyxel usg_flex_700 - No
Operating System zyxel usg200_firmware ≤ 4.71 Yes
Hardware zyxel usg200 - No
Operating System zyxel usg20_firmware ≤ 4.71 Yes
Hardware zyxel usg20 - No
Operating System zyxel usg210_firmware ≤ 4.71 Yes
Hardware zyxel usg210 - No
Operating System zyxel usg2200_firmware ≤ 4.71 Yes
Hardware zyxel usg2200 - No
Operating System zyxel usg300_firmware ≤ 4.71 Yes
Hardware zyxel usg300 - No
Operating System zyxel usg310_firmware ≤ 4.71 Yes
Hardware zyxel usg310 - No
References