Arbitrary Code Execution Affecting dragonfly package, versions <1.4.0


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
72.25% (100th percentile)

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  • Snyk IDSNYK-RUBY-DRAGONFLY-1298031
  • published30 May 2021
  • disclosed30 May 2021
  • creditZXSecurity

Introduced: 30 May 2021

CVE-2021-33564  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade dragonfly to version 1.4.0 or higher.

Overview

Affected versions of this package are vulnerable to Arbitrary Code Execution via a crafted URL when the verify_url option is disabled. This happens due to mishandling of the ImageMagick convert utility.

NOTE: This vulnerability has also been identified as: CVE-2021-33473

CVSS Base Scores

version 3.1