CVE-2021-21305

 

Published at: - 08-02-2021 09:15

Last modified: - 26-04-2022 05:59

Total changes: - 3

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#211---2021-02-08
• https://github.com/carrierwaveuploader/carrierwave/commit/387116f5c72efa42bc3938d946b4c8d2f22181b7
• https://github.com/carrierwaveuploader/carrierwave/security/advisories/GHSA-cf3w-g86h-35x4
• https://rubygems.org/gems/carrierwave
• https://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#132---2021-02-08

 

Keywords

NVD

 

CVE-2021-21305

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures