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CVE-2020-27867

Quick assessment

Affected
NETGEAR Multiple Routers
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.

Netgear NETGEAR R8900等都是美国网件（Netgear）公司的产品。NETGEAR R8900是一款无线路由器。NETGEAR R9000是一款无线路由器。NETGEAR R7800是一款无线路由器。 多款 NETGEAR 路由器中存在命令注入漏洞，该漏洞源于外部输入数据构造可执行命令过程中，网络系统或产品未正确过滤其中的特殊元素。攻击者可利用该漏洞执行非法命令。以下产品和版本受到影响：NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2,

AI Predicted 8.1 Difficulty: Easy EPSS 2.23% · P82
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I. Basic Information for CVE-2020-27867

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. When parsing the funjsq_access_token parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-11653.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
多款Netgear产品命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netgear NETGEAR R8900等都是美国网件（Netgear）公司的产品。NETGEAR R8900是一款无线路由器。NETGEAR R9000是一款无线路由器。NETGEAR R7800是一款无线路由器。 多款 NETGEAR 路由器中存在命令注入漏洞，该漏洞源于外部输入数据构造可执行命令过程中，网络系统或产品未正确过滤其中的特殊元素。攻击者可利用该漏洞执行非法命令。以下产品和版本受到影响：NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2,
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
NETGEAR Multiple Routers firmware version 1.2.0.62_1.0.1 -

II. Public POCs for CVE-2020-27867

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III. Intelligence Information for CVE-2020-27867

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Vendor Advisories for CVE-2020-27867 (1)

Other References for CVE-2020-27867 (1)

Same Patch Batch · NETGEAR · 2021-02-11 · 3 CVEs total

CVE-2020-27861 Netgear NETGEAR 操作系统命令注入漏洞
CVE-2020-27866 多款Netgear产品授权问题漏洞

IV. Related Vulnerabilities

Same product: Multiple Routers
Same vendor: NETGEAR
Same weakness: CWE-77

V. Comments for CVE-2020-27867

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