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Command Injection Affecting mechanize package, versions >=2.0.0, <2.7.7

0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Scope Changed
    Integrity High

    Threat Intelligence

    EPSS 0.3% (70th percentile)
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NVD
8.3 high

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  • Snyk ID SNYK-RUBY-MECHANIZE-1069888
  • published 3 Feb 2021
  • disclosed 1 Feb 2021
  • credit YOSHIDA Katsuhiko
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Introduced: 1 Feb 2021

CVE-2021-21289 Open this link in a new tab
CWE-78 Open this link in a new tab

How to fix?

Upgrade mechanize to version 2.7.7 or higher.

Overview

Affected versions of this package are vulnerable to Command Injection. Affected versions of mechanize allow for OS commands to be injected using several classes' methods which implicitly use Ruby's Kernel.open method. Exploitation is possible only if untrusted input is used as a local filename and passed to any of these calls: Mechanize::CookieJar#load, Mechanize::CookieJar#save_as, Mechanize#download, Mechanize::Download#save, Mechanize::File#save, and Mechanize::FileResponse#read_body.