Remote Code Execution (RCE) Affecting diffy package, versions <3.4.1


0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.19% (56th percentile)
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NVD
9.8 critical
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Red Hat
7.5 high

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  • Snyk ID SNYK-RUBY-DIFFY-2934981
  • published 24 Jun 2022
  • disclosed 24 Jun 2022
  • credit Unknown

How to fix?

Upgrade diffy to version 3.4.1 or higher.

Overview

diffy is a Convenient diffing gem in ruby.

Affected versions of this package are vulnerable to Remote Code Execution (RCE). The function that calls the diff tool does not properly handle double quotes in a filename when run in a windows environment. This allows attackers to execute arbitrary commands via a crafted string.

Note: This vulnerability is applicable in Windows only.