Command Injection Vulnerability in Mechanize
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
mechanizeRubyGems | >= 2.0.0, < 2.7.7 | 2.7.7 |
Affected products
2- sparklemotion/mechanizev5Range: >= 2.0, < 2.7.7
Patches
Vulnerability mechanics
References
14- github.com/advisories/GHSA-qrqm-fpv6-6r8gghsaADVISORY
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBVVJUL4P4KCJH4IQTHFZ4ATXY7XXZPV/mitrevendor-advisoryx_refsource_FEDORA
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YNFZ7ROYS6V4J5L5PRAJUG2AWC7VXR2V/mitrevendor-advisoryx_refsource_FEDORA
- nvd.nist.gov/vuln/detail/CVE-2021-21289ghsaADVISORY
- security.gentoo.org/glsa/202107-17ghsavendor-advisoryx_refsource_GENTOOWEB
- github.com/rubysec/ruby-advisory-db/blob/master/gems/mechanize/CVE-2021-21289.ymlghsaWEB
- github.com/sparklemotion/mechanize/commit/66a6a1bfa653a5f13274a396a5e5441238656aa0ghsax_refsource_MISCWEB
- github.com/sparklemotion/mechanize/releases/tag/v2.7.7ghsax_refsource_MISCWEB
- github.com/sparklemotion/mechanize/security/advisories/GHSA-qrqm-fpv6-6r8gghsax_refsource_CONFIRMWEB
- lists.debian.org/debian-lts-announce/2021/02/msg00021.htmlghsamailing-listx_refsource_MLISTWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LBVVJUL4P4KCJH4IQTHFZ4ATXY7XXZPVghsaWEB
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YNFZ7ROYS6V4J5L5PRAJUG2AWC7VXR2VghsaWEB
- rubygems.org/gems/mechanizeghsaWEB
- rubygems.org/gems/mechanize/mitrex_refsource_MISC
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