CVE-2021-21289

Description

Mechanize is an open-source ruby library that makes automated web interaction easy. In Mechanize from version 2.0.0 and before version 2.7.7 there is a command injection vulnerability. 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. This is fixed in version 2.7.7.

References

https://security.gentoo.org/glsa/202107-17

https://rubygems.org/gems/mechanize/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YNFZ7ROYS6V4J5L5PRAJUG2AWC7VXR2V/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBVVJUL4P4KCJH4IQTHFZ4ATXY7XXZPV/

https://lists.debian.org/debian-lts-announce/2021/02/msg00021.html

https://github.com/sparklemotion/mechanize/security/advisories/GHSA-qrqm-fpv6-6r8g

https://github.com/sparklemotion/mechanize/releases/tag/v2.7.7

https://github.com/sparklemotion/mechanize/commit/66a6a1bfa653a5f13274a396a5e5441238656aa0

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3