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I. Basic Information for CVE-2021-32706
Vulnerability Information
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Vulnerability Title
(Authenticated) Remote Code Execution Possible in Web Interface 5.5
Source: NVD (National Vulnerability Database)
Vulnerability Description
Pi-hole's Web interface provides a central location to manage a Pi-hole instance and review performance statistics. Prior to Pi-hole Web interface version 5.5.1, the `validDomainWildcard` preg_match filter allows a malicious character through that can be used to execute code, list directories, and overwrite sensitive files. The issue lies in the fact that one of the periods is not escaped, allowing any character to be used in its place. A patch for this vulnerability was released in version 5.5.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Pi-hole 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pi-hole是Pi-hole公司的一款网络级广告拦截应用程序。 Pi-hole 5.5.1之前版本存在安全漏洞，该漏洞源于Pi-hole的Web界面提供了一个中央位置来管理Pi-hole实例和检查性能统计信息，在Pi-hole Web界面5.5.1版本之前，恶意字符可以绕过 validDomainWildcard preg匹配过滤器，从而执行代码、列出目录和覆盖敏感文件。根源在于其中一个句点没有转义，允许在其位置使用任何字符。
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
VendorProductAffected VersionsCPESubscribe
pi-holeAdminLTE < 5.5.1 -
II. Public POCs for CVE-2021-32706
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7953 chars
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III. Intelligence Information for CVE-2021-32706
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IV. Related Vulnerabilities
Same product: AdminLTE
Same vendor: pi-hole
Same weakness: CWE-94
V. Comments for CVE-2021-32706

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