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I. Basic Information for CVE-2021-21305
Vulnerability Information

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Vulnerability Title
Code Injection vulnerability in CarrierWave
Source: NVD (National Vulnerability Database)
Vulnerability Description
CarrierWave is an open-source RubyGem which provides a simple and flexible way to upload files from Ruby applications. In CarrierWave before versions 1.3.2 and 2.1.1, there is a code injection vulnerability. The "#manipulate!" method inappropriately evals the content of mutation option(:read/:write), allowing attackers to craft a string that can be executed as a Ruby code. If an application developer supplies untrusted inputs to the option, it will lead to remote code execution(RCE). This is fixed in versions 1.3.2 and 2.1.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mshibuya CarrierWave 代码代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mshibuya CarrierWave是美国Mshibuya个人组织的一个上传工具。提供了一种简单且极为灵活的方式来从Ruby应用程序上传文件。 Mshibuya CarrierWave 1.3.2和2.1.1之前版本存在代码注入漏洞,该漏洞源于#manipulate!方法不恰当地求值了突变选项(:read/:write)的内容,从而允许攻击者创建一个可以作为Ruby代码执行的字符串。如果应用程序开发人员向该选项提供不受信任的输入,则会导致远程代码执行。
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
carrierwaveuploadercarrierwave < 1.3.2 -
II. Public POCs for CVE-2021-21305
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III. Intelligence Information for CVE-2021-21305
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