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Arbitrary Code Injection Affecting activestorage package, versions >=5.2.0, <5.2.6.3 >=6.0.0, <6.0.4.7 >=6.1.0, <6.1.4.7 >=7.0.0, <7.0.2.3

0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 6.67% (94th percentile)
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NVD
9.8 critical
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Red Hat
9.8 critical

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  • Snyk ID SNYK-RUBY-ACTIVESTORAGE-2420035
  • published 9 Mar 2022
  • disclosed 9 Mar 2022
  • credit gquadros, Zack Deveau
Report a new vulnerability Found a mistake?

Introduced: 9 Mar 2022

CVE-2022-21831 Open this link in a new tab
CWE-94 Open this link in a new tab

How to fix?

Upgrade activestorage to version 5.2.6.3, 6.0.4.7, 6.1.4.7, 7.0.2.3 or higher.

Overview

Affected versions of this package are vulnerable to Arbitrary Code Injection where the transformation method or its arguments are untrusted arbitrary input.

Note:

This vulnerability impacts applications that use Active Storage with the image_processing processing in addition to the mini_magick back end for image_processing.

PoC: 

<%= image_tag blob.variant(params[:t] => params[:v]) %>