CVE-2021-21289

Severity CVSS v4.0:

Pending analysis

Type:

CWE-78 OS Command Injections

Publication date:

02/02/2021

Last modified:

07/11/2023

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&#39; methods which implicitly use Ruby&#39;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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.30 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.30

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:H/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.60 HIGH
Vector: AV:N/AC:H/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

7.60

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:mechanize_project:mechanize::::::ruby::*	2.0 (including)	2.7.7 (excluding)
cpe:2.3:o:fedoraproject:fedora:32:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:debian:debian_linux:9.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-21289

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools