10

CVE-2022-30525

Warning
Exploit

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.

Data is provided by the National Vulnerability Database (NVD)
Zyxel ≫ Usg Flex 100w Firmware Version >= 5.00 < 5.30
   Zyxel ≫ Usg Flex 100w Version-
Zyxel ≫ Usg Flex 200 Firmware Version >= 5.00 < 5.30
   Zyxel ≫ Usg Flex 200 Version-
Zyxel ≫ Usg Flex 500 Firmware Version >= 5.00 <= 5.30
   Zyxel ≫ Usg Flex 500 Version-
Zyxel ≫ Usg Flex 700 Firmware Version >= 5.00 < 5.30
   Zyxel ≫ Usg Flex 700 Version-
Zyxel ≫ Vpn100 Firmware Version >= 4.60 < 5.30
   Zyxel ≫ Vpn100 Version-
Zyxel ≫ Vpn1000 Firmware Version >= 4.60 < 5.30
   Zyxel ≫ Vpn1000 Version-
Zyxel ≫ Vpn300 Firmware Version >= 4.60 < 5.30
   Zyxel ≫ Vpn300 Version-
Zyxel ≫ Vpn50 Firmware Version >= 4.60 < 5.30
   Zyxel ≫ Vpn50 Version-
Zyxel ≫ Atp100 Firmware Version >= 5.10 < 5.30
   Zyxel ≫ Atp100 Version-
Zyxel ≫ Atp100w Firmware Version >= 5.10 < 5.30
   Zyxel ≫ Atp100w Version-
Zyxel ≫ Atp200 Firmware Version >= 5.10 < 5.30
   Zyxel ≫ Atp200 Version-
Zyxel ≫ Atp500 Firmware Version >= 5.10 < 5.30
   Zyxel ≫ Atp500 Version-
Zyxel ≫ Atp700 Firmware Version >= 5.10 < 5.30
   Zyxel ≫ Atp700 Version-
Zyxel ≫ Atp800 Firmware Version >= 5.10 < 5.30
   Zyxel ≫ Atp800 Version-
Zyxel ≫ Usg Flex 50w Firmware Version >= 5.10 < 5.30
   Zyxel ≫ Usg Flex 50w Version-
Zyxel ≫ Usg20w-vpn Firmware Version >= 5.10 < 5.30
   Zyxel ≫ Usg20w-vpn Version-

16.05.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Zyxel Multiple Firewalls OS Command Injection Vulnerability

Vulnerability

A command injection vulnerability in the CGI program of some Zyxel firewall versions could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.

Description

Apply updates per vendor instructions.

Required actions
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 94.42% 1
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 10 10 10
AV:N/AC:L/Au:N/C:C/I:C/A:C
security@zyxel.com.tw 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.