CVE-2021-21289
In Mechanize from version 2.0.0 and before version 2.7.7 there is a command injection vulnerability.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.3 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
- EPSS
- 3.51% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- mechanize project/mechanize · fedoraproject/fedora · debian/debian linux
- Source
- security-advisories@github.com
References
- https://github.com/sparklemotion/mechanize/commit/66a6a1bfa653a5f13274a396a5e5441238656aa0Patch, Third Party Advisory
- https://github.com/sparklemotion/mechanize/releases/tag/v2.7.7Release Notes, Third Party Advisory
- https://github.com/sparklemotion/mechanize/security/advisories/GHSA-qrqm-fpv6-6r8gThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00021.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBVVJUL4P4KCJH4IQTHFZ4ATXY7XXZPV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YNFZ7ROYS6V4J5L5PRAJUG2AWC7VXR2V/
- https://rubygems.org/gems/mechanize/Product, Third Party Advisory
- https://security.gentoo.org/glsa/202107-17Third Party Advisory
- https://github.com/sparklemotion/mechanize/commit/66a6a1bfa653a5f13274a396a5e5441238656aa0Patch, Third Party Advisory
- https://github.com/sparklemotion/mechanize/releases/tag/v2.7.7Release Notes, Third Party Advisory
- https://github.com/sparklemotion/mechanize/security/advisories/GHSA-qrqm-fpv6-6r8gThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00021.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBVVJUL4P4KCJH4IQTHFZ4ATXY7XXZPV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YNFZ7ROYS6V4J5L5PRAJUG2AWC7VXR2V/
- https://rubygems.org/gems/mechanize/Product, Third Party Advisory
- https://security.gentoo.org/glsa/202107-17Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.