Detections
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CVE-2021-33564
critical
Description
An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby allows remote attackers to read and write to arbitrary files via a crafted URL when the verify_url option is disabled. This may lead to code execution. The problem occurs because the generate and process features mishandle use of the ImageMagick convert utility.
References
https://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/
https://github.com/mlr0p/CVE-2021-33564
https://github.com/markevans/dragonfly/issues/513
https://github.com/markevans/dragonfly/compare/v1.3.0...v1.4.0
https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5