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CVE-2022-38547

Quick assessment

Affected
Zyxel ZyWALL/USG series firmware
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zyxel ZyXEL ZyWALL USG是中国合勤（Zyxel）公司的一款网络安全防火墙设备。 Zyxel ZyWALL/USG 4.20至4.72版本、VPN 4.30至5.32版本、USG FLEX 4.50至5.32版本、ATP 4.32至5.32版本存在安全漏洞，该漏洞源于在CLI命令中存在认证后命令注入漏洞， 允许具有管理员权限的经过身份验证的攻击者执行操作系统命令。

CVSS 7.2 · High EPSS 2.83% · P86

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2022-38547

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72, VPN series firmware versions 4.30 through 5.32, USG FLEX series firmware versions 4.50 through 5.32, and ATP series firmware versions 4.32 through 5.32, which could allow an authenticated attacker with administrator privileges to execute OS commands.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
ZyXEL ZyWALL USG 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel ZyXEL ZyWALL USG是中国合勤（Zyxel）公司的一款网络安全防火墙设备。 Zyxel ZyWALL/USG 4.20至4.72版本、VPN 4.30至5.32版本、USG FLEX 4.50至5.32版本、ATP 4.32至5.32版本存在安全漏洞，该漏洞源于在CLI命令中存在认证后命令注入漏洞， 允许具有管理员权限的经过身份验证的攻击者执行操作系统命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Zyxel ZyWALL/USG series firmware 4.20 through 4.72 -
Zyxel VPN series firmware 4.30 through 5.32 -
Zyxel USG FLEX series firmware 4.50 through 5.32 -
Zyxel ATP series firmware 4.32 through 5.32 -

II. Public POCs for CVE-2022-38547

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III. Intelligence Information for CVE-2022-38547

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Other References for CVE-2022-38547 (1)

Same Patch Batch · Zyxel · 2023-02-07 · 3 CVEs total

CVE-2022-45441 6.1 MEDIUM Zyxel NBG-418N v2 跨站脚本漏洞
CVE-2022-45854 4.3 MEDIUM Zyxel NWA110AX 代码问题漏洞

IV. Related Vulnerabilities

Same product: ZyWALL/USG series firmware
Same vendor: Zyxel
Same weakness: CWE-78

V. Comments for CVE-2022-38547

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