CVE-2021-4029
Quick assessment
Affected
Zyxel ARMOR Z2 (NBG6817) 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 Nbg6816和Zyxel Nbg6817都是中国合勤科技（Zyxel）公司的产品。Zyxel Nbg6816是一个双频无线千兆路由器。Zyxel Nbg6817是一个无线路由器。 Zyxel Nbg6816和Zyxel Nbg6817 存在操作系统命令注入漏洞，该漏洞源于输入验证不当。攻击者可利用该漏洞可以在目标系统上执行任意操作系统命令。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-4029
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A command injection vulnerability in the CGI program of the Zyxel ARMOR Z1/Z2 firmware could allow an attacker to execute arbitrary OS commands via a LAN interface.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/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 Nbg6816和Zyxel Nbg6817 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel Nbg6816和Zyxel Nbg6817都是中国合勤科技（Zyxel）公司的产品。Zyxel Nbg6816是一个双频无线千兆路由器。Zyxel Nbg6817是一个无线路由器。 Zyxel Nbg6816和Zyxel Nbg6817 存在操作系统命令注入漏洞，该漏洞源于输入验证不当。攻击者可利用该漏洞可以在目标系统上执行任意操作系统命令。
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 | ARMOR Z2 (NBG6817) firmware | 1.00(ABCS.10)C0 | - |
|
| Zyxel | ARMOR Z1 (NBG6816) firmware | 1.00(AAWB.10)C0 | - |
|
II. Public POCs for CVE-2021-4029
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-4029 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2021-4029
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