CVE-2021-21289

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 v3.0 8.3 HIGH
CVSS v2.0 7.6 HIGH

8.3^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

7.6^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:H/Au:N/C:C/I:C/A:C

Exploitability : 4.9 / Impact : 10.0

Access Vector NETWORK

Access Complexity HIGH

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://rubygems.org/gems/mechanize/	Product Third Party Advisory
https://github.com/sparklemotion/mechanize/commit/66a6a1bfa653a5f13274a396a5e5441238656aa0	Patch Third Party Advisory
https://github.com/sparklemotion/mechanize/security/advisories/GHSA-qrqm-fpv6-6r8g	Third Party Advisory
https://github.com/sparklemotion/mechanize/releases/tag/v2.7.7	Release Notes Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LBVVJUL4P4KCJH4IQTHFZ4ATXY7XXZPV/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YNFZ7ROYS6V4J5L5PRAJUG2AWC7VXR2V/	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00021.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202107-17	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mechanize_project:mechanize:*:*:*:*:*:ruby:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:32:::::::*
	cpe:2.3:o:fedoraproject:fedora:33:::::::*

Configuration 3 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2021-02-02 11:15

Updated : 2022-04-26 08:07

NVD link : CVE-2021-21289

Mitre link : CVE-2021-21289

JSON object : View

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Products Affected

fedoraproject

fedora

debian

debian_linux

mechanize_project

mechanize

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8.3 /10