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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
Affected products
- carrierwaveuploader / carrierwave< 1.3.2 – < 1.3.2
- carrierwaveuploader / carrierwave>= 2.0.0, < 2.1.1 – >= 2.0.0, < 2.1.1
References
- MISChttps://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#132---2021-02-08
- MISChttps://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#211---2021-02-08
- VENDOR_ADVISORYhttps://github.com/carrierwaveuploader/carrierwave/security/advisories/GHSA-cf3w-g86h-35x4
- MISChttps://rubygems.org/gems/carrierwave
- PATCHhttps://github.com/carrierwaveuploader/carrierwave/commit/387116f5c72efa42bc3938d946b4c8d2f22181b7