CVE-2022-0342
First published: Mon Mar 28 2022(Updated: )
An authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.32 through 5.20, VPN series firmware versions 4.30 through 5.20, and NSG series firmware versions V1.20 through V1.33 Patch 4, which could allow an attacker to bypass the web authentication and obtain administrative access of the device.
Credit: security@zyxel.com.tw
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Zyxel USG 40 firmware | >=4.20<4.71 | |
| Zyxel USG 40 | ||
| Zyxel USG 40w firmware | >=4.20<4.71 | |
| Zyxel USG 40w firmware | ||
| Zyxel USG 60W firmware | >=4.20<4.71 | |
| Zyxel USG 60 | ||
| Zyxel USG 60W firmware | >=4.20<4.71 | |
| Zyxel USG 60W firmware | ||
| Zyxel Zywall 1100 Firmware | >=4.20<4.71 | |
| Zyxel Zywall 110 firmware | ||
| Zyxel ZyWALL USG 310 firmware | >=4.20<4.71 | |
| Zyxel Zywall 310 Firmware | ||
| Zyxel Zywall 1100 Firmware | >=4.20<4.71 | |
| Zyxel Zywall 1100 Firmware | ||
| Zyxel USG Flex 100 firmware | >=4.50<=5.20 | |
| Zyxel USG Flex 100 firmware | ||
| Zyxel USG FLEX firmware | >=4.50<=5.20 | |
| Zyxel USG FLEX 200 firmware | ||
| Zyxel USG FLEX firmware | >=4.50<=5.20 | |
| Zyxel USG FLEX 500 firmware | ||
| Zyxel USG FLEX 100w firmware | >=4.50<=5.20 | |
| Zyxel USG FLEX 100w firmware | ||
| Zyxel USG FLEX firmware | >=4.50<=5.20 | |
| Zyxel USG FLEX 700 firmware | ||
| Zyxel ZyWall ATP100 Firmware | >=4.32<=5.20 | |
| Zyxel ATP100 Firmware | ||
| Zyxel ATP100W Firmware | >=4.32<=5.20 | |
| Zyxel ATP100W Firmware | ||
| Zyxel ATP200 firmware | >=4.32<=5.20 | |
| Zyxel Zywall ATP200 | ||
| Zyxel ATP500 Firmware | >=4.32<=5.20 | |
| Zyxel ATP500 Firmware | ||
| Zyxel Zywall ATP700 | >=4.32<=5.20 | |
| Zyxel ATP700 Firmware | ||
| Zyxel Zywall ATP800 Firmware | >=4.32<=5.20 | |
| Zyxel Zywall ATP800 Firmware | ||
| Zyxel Zywall VPN 50 Firmware | >=4.30<5.21 | |
| Zyxel VPN50 Firmware | ||
| Zyxel VPN100 | >=4.30<5.21 | |
| Zyxel Zywall VPN100 | ||
| Zyxel Zywall VPN 300 Firmware | >=4.30<5.21 | |
| Zyxel Zywall VPN300 | ||
| Zyxel VPN1000 Firmware | >=4.30<5.21 | |
| Zyxel VPN1000 Firmware | ||
| Zyxel NSG firmware | >=1.20<1.33 | |
| Zyxel NSG firmware | =1.33 | |
| Zyxel NSG firmware | =1.33-p4 | |
| Zyxel NSG firmware |
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Reference Links
Frequently Asked Questions
What is CVE-2022-0342?
CVE-2022-0342 is an authentication bypass vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.32 through 5.20, VPN series firmware versions 4.30 through 5.20, and NSG series firmware versions 1.20 through 1.33.
What is the severity of CVE-2022-0342?
The severity of CVE-2022-0342 is critical, with a CVSS score of 9.8.
Which software versions are affected by CVE-2022-0342?
CVE-2022-0342 affects Zyxel USG/ZyWALL series firmware versions 4.20 through 4.70, USG FLEX series firmware versions 4.50 through 5.20, ATP series firmware versions 4.32 through 5.20, VPN series firmware versions 4.30 through 5.20, and NSG series firmware versions 1.20 through 1.33.
How can I fix CVE-2022-0342?
To fix CVE-2022-0342, it is recommended to update to the latest firmware version provided by Zyxel.
Where can I find more information about CVE-2022-0342?
You can find more information about CVE-2022-0342 in the Zyxel security advisory for authentication bypass vulnerability of firewalls.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/references
- agent/last-modified-date
- agent/weakness
- agent/author
- agent/event
- agent/description
- agent/first-publish-date
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/zyxel
- canonical/zyxel usg 40 firmware
- version/zyxel usg 40 firmware/4.20
- canonical/zyxel usg 40
- canonical/zyxel usg 40w firmware
- version/zyxel usg 40w firmware/4.20
- canonical/zyxel usg 60w firmware
- version/zyxel usg 60w firmware/4.20
- canonical/zyxel usg 60
- canonical/zyxel zywall 1100 firmware
- version/zyxel zywall 1100 firmware/4.20
- canonical/zyxel zywall 110 firmware
- canonical/zyxel zywall usg 310 firmware
- version/zyxel zywall usg 310 firmware/4.20
- canonical/zyxel zywall 310 firmware
- canonical/zyxel usg flex 100 firmware
- version/zyxel usg flex 100 firmware/4.50
- version/zyxel usg flex 100 firmware/5.20
- canonical/zyxel usg flex firmware
- version/zyxel usg flex firmware/4.50
- version/zyxel usg flex firmware/5.20
- canonical/zyxel usg flex 200 firmware
- canonical/zyxel usg flex 500 firmware
- canonical/zyxel usg flex 100w firmware
- version/zyxel usg flex 100w firmware/4.50
- version/zyxel usg flex 100w firmware/5.20
- canonical/zyxel usg flex 700 firmware
- canonical/zyxel zywall atp100 firmware
- version/zyxel zywall atp100 firmware/4.32
- version/zyxel zywall atp100 firmware/5.20
- canonical/zyxel atp100 firmware
- canonical/zyxel atp100w firmware
- version/zyxel atp100w firmware/4.32
- version/zyxel atp100w firmware/5.20
- canonical/zyxel atp200 firmware
- version/zyxel atp200 firmware/4.32
- version/zyxel atp200 firmware/5.20
- canonical/zyxel zywall atp200
- canonical/zyxel atp500 firmware
- version/zyxel atp500 firmware/4.32
- version/zyxel atp500 firmware/5.20
- canonical/zyxel zywall atp700
- version/zyxel zywall atp700/4.32
- version/zyxel zywall atp700/5.20
- canonical/zyxel atp700 firmware
- canonical/zyxel zywall atp800 firmware
- version/zyxel zywall atp800 firmware/4.32
- version/zyxel zywall atp800 firmware/5.20
- canonical/zyxel zywall vpn 50 firmware
- version/zyxel zywall vpn 50 firmware/4.30
- canonical/zyxel vpn50 firmware
- canonical/zyxel vpn100
- version/zyxel vpn100/4.30
- canonical/zyxel zywall vpn100
- canonical/zyxel zywall vpn 300 firmware
- version/zyxel zywall vpn 300 firmware/4.30
- canonical/zyxel zywall vpn300
- canonical/zyxel vpn1000 firmware
- version/zyxel vpn1000 firmware/4.30
- canonical/zyxel nsg firmware
- version/zyxel nsg firmware/1.20
- version/zyxel nsg firmware/1.33
- version/zyxel nsg firmware/1.33-p4