Exploited
critical
10
CWE
77 78
Advisory Published
Updated

CVE-2022-30525: Zyxel Multiple Firewalls OS Command Injection Vulnerability

First published: Thu May 12 2022(Updated: )

A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1, USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1, ATP series firmware versions 5.10 through 5.21 Patch 1, VPN series firmware versions 4.60 through 5.21 Patch 1, which could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.

Credit: security@zyxel.com.tw security@zyxel.com.tw

Affected SoftwareAffected VersionHow to fix
Zyxel Usg Flex 100w Firmware>=5.00<5.30
Zyxel Usg Flex 100w
Zyxel Usg Flex 200 Firmware>=5.00<5.30
Zyxel Usg Flex 200
Zyxel Usg Flex 500 Firmware>=5.00<=5.30
Zyxel Usg Flex 500
Zyxel Usg Flex 700 Firmware>=5.00<5.30
Zyxel Usg Flex 700
Zyxel Vpn100 Firmware>=4.60<5.30
Zyxel Vpn100
Zyxel Multiple Network-Attached Storage (NAS) Devices>=4.60<5.30
Zyxel Multiple Network-Attached Storage (NAS) Devices
Zyxel Vpn300 Firmware>=4.60<5.30
Zyxel Vpn300
Zyxel Vpn50 Firmware>=4.60<5.30
Zyxel Vpn50
Zyxel Multiple Network-Attached Storage (NAS) Devices>=5.10<5.30
Zyxel Multiple Network-Attached Storage (NAS) Devices
Zyxel Atp100w Firmware>=5.10<5.30
Zyxel Atp100w
Zyxel Atp200 Firmware>=5.10<5.30
Zyxel ATP200
Zyxel Atp500 Firmware>=5.10<5.30
Zyxel Atp500
Zyxel Atp700 Firmware>=5.10<5.30
Zyxel Atp700
Zyxel Atp800 Firmware>=5.10<5.30
Zyxel Atp800
Zyxel Usg Flex 50w Firmware>=5.10<5.30
Zyxel Usg Flex 50w
Zyxel Usg20w-vpn Firmware>=5.10<5.30
Zyxel Usg20w-vpn
Zyxel Multiple Firewalls
All of
Zyxel Usg Flex 100w Firmware>=5.00<5.30
Zyxel Usg Flex 100w
All of
Zyxel Usg Flex 200 Firmware>=5.00<5.30
Zyxel Usg Flex 200
All of
Zyxel Usg Flex 500 Firmware>=5.00<=5.30
Zyxel Usg Flex 500
All of
Zyxel Usg Flex 700 Firmware>=5.00<5.30
Zyxel Usg Flex 700
All of
Zyxel Vpn100 Firmware>=4.60<5.30
Zyxel Vpn100
All of
Zyxel Vpn1000 Firmware>=4.60<5.30
Zyxel Vpn1000
All of
Zyxel Vpn300 Firmware>=4.60<5.30
Zyxel Vpn300
All of
Zyxel Vpn50 Firmware>=4.60<5.30
Zyxel Vpn50
All of
Zyxel Atp100 Firmware>=5.10<5.30
Zyxel Atp100
All of
Zyxel Atp100w Firmware>=5.10<5.30
Zyxel Atp100w
All of
Zyxel Atp200 Firmware>=5.10<5.30
Zyxel ATP200
All of
Zyxel Atp500 Firmware>=5.10<5.30
Zyxel Atp500
All of
Zyxel Atp700 Firmware>=5.10<5.30
Zyxel Atp700
All of
Zyxel Atp800 Firmware>=5.10<5.30
Zyxel Atp800
All of
Zyxel Usg Flex 50w Firmware>=5.10<5.30
Zyxel Usg Flex 50w
All of
Zyxel Usg20w-vpn Firmware>=5.10<5.30
Zyxel Usg20w-vpn

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2022-30525?

    The severity of CVE-2022-30525 is critical with a CVSS score of 9.8.

  • How does CVE-2022-30525 affect Zyxel Multiple Firewalls?

    CVE-2022-30525 affects Zyxel Multiple Firewalls by allowing OS command injection.

  • Which Zyxel firewalls are affected by CVE-2022-30525?

    Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1 are affected by CVE-2022-30525.

  • How do I fix CVE-2022-30525?

    To fix CVE-2022-30525, users should update their Zyxel firewalls to firmware versions 5.21 Patch 2 or higher.

  • Where can I find more information about CVE-2022-30525?

    More information about CVE-2022-30525 can be found at the following references: <ul><li><a href='http://packetstormsecurity.com/files/167176/Zyxel-Remote-Command-Execution.html'>Packet Storm Security</a></li><li><a href='http://packetstormsecurity.com/files/167182/Zyxel-Firewall-ZTP-Unauthenticated-Command-Injection.html'>Packet Storm Security</a></li><li><a href='http://packetstormsecurity.com/files/167372/Zyxel-USG-FLEX-5.21-Command-Injection.html'>Packet Storm Security</a></li></ul>

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