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CVE-2021-33564GHSA-J858-XP5V-F8XX

An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby allows remote attackers to read and write to arbitrary files

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.4.0
2 proofs of concept on GitHub, 1 Nuclei template

Summary

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.

Timeline

  1. CVE published
  2. Record last updated
  3. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • n/a n/a

    Version range not reported

  • dragonflyRubyGems

    fixed in 1.4.0

References 8

GitHub · markevans/dragonfly

raw.githubusercontent.com

GitHub · mlr0p/CVE-2021-33564

zxsecurity.co.nz

GitHub · projectdiscovery/nuclei-templates

GitHub · dorkerdevil/CVE-2021-33564