CVE-2022-0910 : A downgrade from two-factor authentication to one-factor authentication vulnerab

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 2022-05-24 03:15:09

Updated 2022-06-06 18:17:44

Source Zyxel Corporation

View at NVD, CVE.org

Vulnerability category: BypassGain privilege

Products affected by CVE-2022-0910

Zyxel » Usg 20w Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_20w_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 20w » Version: N/A
Zyxel » Usg 40 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_40_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 40 » Version: N/A
Zyxel » Usg 40w Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_40w_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 40w » Version: N/A
Zyxel » Usg 60 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_60_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 60 » Version: N/A
Zyxel » Usg 60w Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_60w_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 60w » Version: N/A
Zyxel » Usg 110 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_110_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 110 » Version: N/A
Zyxel » Usg 2200-vpn Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_2200-vpn_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 2200-vpn » Version: N/A
Zyxel » Usg 310 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_310_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 310 » Version: N/A
Zyxel » Usg 1100 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_1100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 1100 » Version: N/A
Zyxel » Usg 1900 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_1900_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 1900 » Version: N/A
Zyxel » Usg 20w-vpn Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg_20w-vpn_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg 20w-vpn » Version: N/A
Zyxel » Atp200 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp200 » Version: N/A
Zyxel » Atp500 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp500 » Version: N/A
Zyxel » Atp800 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp800 » Version: N/A
Zyxel » Usg210 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg210_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg210 » Version: N/A
Zyxel » Usg310 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg310_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg310 » Version: N/A
Zyxel » Vpn50 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Vpn50 » Version: N/A
Zyxel » Vpn100 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Vpn100 » Version: N/A
Zyxel » Vpn300 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Vpn300 » Version: N/A
Zyxel » Usg2200 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg2200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg2200 » Version: N/A
Zyxel » Atp100 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp100 » Version: N/A
Zyxel » Vpn1000 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:vpn1000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Vpn1000 » Version: N/A
Zyxel » Usg300 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg300 » Version: N/A
Zyxel » Usg20 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg20_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg20 » Version: N/A
Zyxel » Usg200 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 4.71
cpe:2.3:o:zyxel:usg200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg200 » Version: N/A
Zyxel » Usg Flex 100 Firmware
Versions from including (>=) 4.50 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg Flex 100 » Version: N/A
Zyxel » Usg Flex 200 Firmware
Versions from including (>=) 4.50 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg Flex 200 » Version: N/A
Zyxel » Usg Flex 500 Firmware
Versions from including (>=) 4.50 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg Flex 500 » Version: N/A
Zyxel » Usg Flex 100w Firmware
Versions from including (>=) 4.50 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg Flex 100w » Version: N/A
Zyxel » Usg Flex 700 Firmware
Versions from including (>=) 4.50 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg Flex 700 » Version: N/A
Zyxel » Atp100w Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp100w » Version: N/A
Zyxel » Atp700 Firmware
Versions from including (>=) 4.32 and up to, including, (<=) 5.21
cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp700 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2022-0910

EPSS FAQ

0.05%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 20 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-0910

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:N/I:P/A:N	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N	2.8	3.6	Zyxel Corporation
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE ids for CVE-2022-0910

CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Assigned by:
- nvd@nist.gov (Primary)
- security@zyxel.com.tw (Secondary)

References for CVE-2022-0910

https://www.zyxel.com/support/multiple-vulnerabilities-of-firewalls-AP-controllers-and-APs.shtml

Zyxel security advisory for multiple vulnerabilities of firewalls, AP controllers, and APs | Zyxel
Vendor Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2022-0910

Products affected by CVE-2022-0910

Exploit prediction scoring system (EPSS) score for CVE-2022-0910

CVSS scores for CVE-2022-0910

CWE ids for CVE-2022-0910

References for CVE-2022-0910