CRITICAL 9.8 RubyGems
Dragonfly contains remote code execution vulnerability
GHSA-j858-xp5v-f8xx · CVE-2021-33564
Published · Modified
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
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-33564
- WEB https://github.com/markevans/dragonfly/issues/513
- WEB https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5
- ADVISORY https://github.com/advisories/GHSA-j858-xp5v-f8xx
- WEB https://github.com/markevans/dragonfly/compare/v1.3.0...v1.4.0
- WEB https://github.com/mlr0p/CVE-2021-33564
- WEB https://github.com/rubysec/ruby-advisory-db/blob/master/gems/dragonfly/CVE-2021-33564.yml
- WEB https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yaml
- WEB https://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly
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