CVE-2022-0734 : A cross-site scripting vulnerability was identified in the CGI program of Zyxel

A cross-site scripting vulnerability was identified in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.35 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.35 through 5.20, and VPN series firmware versions 4.35 through 5.20, that could allow an attacker to obtain some information stored in the user's browser, such as cookies or session tokens, via a malicious script.

Published 2022-05-24 03:15:09

Updated 2022-06-06 18:16:14

Source Zyxel Corporation

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2022-0734

Zyxel » Usg 20w Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 4.70
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 (>=) 4.35 and up to, including, (<=) 5.20
cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp200 » Version: N/A
Zyxel » Atp500 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 5.20
cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp500 » Version: N/A
Zyxel » Atp800 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 5.20
cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp800 » Version: N/A
Zyxel » Usg210 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 4.70
cpe:2.3:o:zyxel:usg210_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg210 » Version: N/A
Zyxel » Usg310 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 4.70
cpe:2.3:o:zyxel:usg310_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg310 » Version: N/A
Zyxel » Vpn50 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 5.20
cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Vpn50 » Version: N/A
Zyxel » Vpn100 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 5.20
cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Vpn100 » Version: N/A
Zyxel » Vpn300 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 5.20
cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Vpn300 » Version: N/A
Zyxel » Usg2200 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 4.70
cpe:2.3:o:zyxel:usg2200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg2200 » Version: N/A
Zyxel » Atp100 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 5.20
cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp100 » Version: N/A
Zyxel » Vpn1000 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 5.20
cpe:2.3:o:zyxel:vpn1000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Vpn1000 » Version: N/A
Zyxel » Usg300 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 4.70
cpe:2.3:o:zyxel:usg300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg300 » Version: N/A
Zyxel » Usg20 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 4.70
cpe:2.3:o:zyxel:usg20_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Usg20 » Version: N/A
Zyxel » Usg200 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 4.70
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, (<=) 5.20
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, (<=) 5.20
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, (<=) 5.20
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, (<=) 5.20
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, (<=) 5.20
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 (>=) 4.35 and up to, including, (<=) 5.20
cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Zyxel » Atp100w » Version: N/A
Zyxel » Atp700 Firmware
Versions from including (>=) 4.35 and up to, including, (<=) 5.20
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-2022-0734

EPSS FAQ

0.07%

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

~ 30 %

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

CVSS scores for CVE-2022-0734

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None
5.8	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N	3.9	1.4	Zyxel Corporation
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Changed Confidentiality: Low Integrity: None Availability: None

CWE ids for CVE-2022-0734

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Assigned by:
- nvd@nist.gov (Primary)
- security@zyxel.com.tw (Secondary)

References for CVE-2022-0734

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-2022-0734

Products affected by CVE-2022-0734

Exploit prediction scoring system (EPSS) score for CVE-2022-0734

CVSS scores for CVE-2022-0734

CWE ids for CVE-2022-0734

References for CVE-2022-0734