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I. Basic Information for CVE-2021-23435
Vulnerability Information

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Vulnerability Title
Open Redirect
Source: NVD (National Vulnerability Database)
Vulnerability Description
This affects the package clearance before 2.5.0. The vulnerability can be possible when users are able to set the value of session[:return_to]. If the value used for return_to contains multiple leading slashes (/////example.com) the user ends up being redirected to the external domain that comes after the slashes (http://example.com).
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Github Clearance 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Github Clearance是使用电子邮件和密码进行 Rails 身份验证。 clearance 存在输入验证错误漏洞,该漏洞源于用于 return_to 的值包含多个前导斜杠 (//////example.com),则用户最终会被重定向到斜杠之后的外部域 (http://example.com)。
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
-clearance unspecified ~ 2.5.0 -
II. Public POCs for CVE-2021-23435
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III. Intelligence Information for CVE-2021-23435
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IV. Related Vulnerabilities
V. Comments for CVE-2021-23435

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