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[email protected]CVE-2021-21289

HistoryFeb 02, 2021 - 7:15 p.m.

CVE-2021-21289

2021-02-0219:15:14

CWE-78

[email protected]

web.nvd.nist.gov

mechanize

ruby

library

command injection

vulnerability

os commands

nvd

cve-2021-21289

7.6 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

8.3 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

8.1 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

69.8%

JSON

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.

Affected configurations

Vulners

NVD

Node

sparklemotionmechanizeRange2.0–2.7.7

CPENameOperatorVersion
mechanize_project:mechanizemechanize project mechanizelt2.7.7

CPE	Name	Operator	Version
mechanize_project:mechanize	mechanize project mechanize	lt	2.7.7

CNA Affected

[
  {
    "product": "mechanize",
    "vendor": "sparklemotion",
    "versions": [
      {
        "status": "affected",
        "version": ">= 2.0, < 2.7.7"
      }
    ]
  }
]