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CVE-2021-27255

Quick assessment

Affected
NETGEAR R7800
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 R7800是美国网件（Netgear）公司的一款无线路由器。 NETGEAR R7800 存在访问控制错误漏洞，攻击者可利用该漏洞在受影响的设备安装上执行任意代码。

AI Predicted 9.8 Difficulty: Easy EPSS 1.40% · P71
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I. Basic Information for CVE-2021-27255

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Authentication is not required to exploit this vulnerability. The specific flaw exists within the refresh_status.aspx endpoint. The issue results from a lack of authentication required to start a service on the server. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12360.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Netgear NETGEAR R7800 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Netgear NETGEAR R7800是美国网件（Netgear）公司的一款无线路由器。 NETGEAR R7800 存在访问控制错误漏洞，攻击者可利用该漏洞在受影响的设备安装上执行任意代码。
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 R7800 firmware version 1.0.2.76 -

II. Public POCs for CVE-2021-27255

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III. Intelligence Information for CVE-2021-27255

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Vendor Advisories for CVE-2021-27255 (1)

Other References for CVE-2021-27255 (1)

Same Patch Batch · NETGEAR · 2021-03-05 · 4 CVEs total

CVE-2021-27254 Netgear NETGEAR 信任管理问题漏洞
CVE-2021-27256 Netgear NETGEAR R7800 操作系统命令注入漏洞
CVE-2021-27257 Netgear NETGEAR R7800 信任管理问题漏洞

IV. Related Vulnerabilities

Same product: R7800
Same vendor: NETGEAR
Same weakness: CWE-306

V. Comments for CVE-2021-27255

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