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I. Basic Information for CVE-2020-15237
Vulnerability Information

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Vulnerability Title
Timing attack in Shrine
Source: NVD (National Vulnerability Database)
Vulnerability Description
In Shrine before version 3.3.0, when using the `derivation_endpoint` plugin, it's possible for the attacker to use a timing attack to guess the signature of the derivation URL. The problem has been fixed by comparing sent and calculated signature in constant time, using `Rack::Utils.secure_compare`. Users using the `derivation_endpoint` plugin are urged to upgrade to Shrine 3.3.0 or greater. A possible workaround is provided in the linked advisory.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过时间差异性导致的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Shrine 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Shrine是个人开发者的一个 Ruby 语言的文件工具包。 Shrine 3.3.0之前版本存在安全漏洞,该漏洞源于当使用“派生端点”插件时,攻击者可利用该漏洞可能会使用定时攻击来猜测派生URL的签名。
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
shrinerbshrine < 3.3.0 -
II. Public POCs for CVE-2020-15237
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III. Intelligence Information for CVE-2020-15237
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