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I. Basic Information for CVE-2021-41263
Vulnerability Information

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Vulnerability Title
Secure/signed cookies share secrets between sites in rails_multisite
Source: NVD (National Vulnerability Database)
Vulnerability Description
rails_multisite provides multi-db support for Rails applications. In affected versions this vulnerability impacts any Rails applications using `rails_multisite` alongside Rails' signed/encrypted cookies. Depending on how the application makes use of these cookies, it may be possible for an attacker to re-use cookies on different 'sites' within a multi-site Rails application. The issue has been patched in v4 of the `rails_multisite` gem. Note that this upgrade will invalidate all previous signed/encrypted cookies. The impact of this invalidation will vary based on the application architecture.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Rails 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rails是Rails团队的一套基于Ruby语言的开源Web应用框架。 Rails multisite 存在加密问题漏洞,攻击者可能会在多个Rails应用程序中的不同sites上重复使用cookie。
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
discourserails_multisite < 4.0.0 -
II. Public POCs for CVE-2021-41263
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III. Intelligence Information for CVE-2021-41263
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IV. Related Vulnerabilities
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