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


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.23% (61st percentile)

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  • Snyk IDSNYK-RUBY-MECHANIZE-1069888
  • published3 Feb 2021
  • disclosed1 Feb 2021
  • creditYOSHIDA Katsuhiko

Introduced: 1 Feb 2021

CVE-2021-21289  (opens in a new tab)
CWE-78  (opens 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.

CVSS Scores

version 3.1