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ubuntu-cve-2021-21289
Vulnerability from osv_ubuntu
Published
2021-02-02 19:15
Modified
2025-10-24 04:50
Summary
Details

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.

Severity
7.4 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
8.3 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-mechanize",
            "binary_version": "2.7.3-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "ruby-mechanize",
        "purl": "pkg:deb/ubuntu/ruby-mechanize@2.7.3-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.3-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-mechanize",
            "binary_version": "2.7.5-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "ruby-mechanize",
        "purl": "pkg:deb/ubuntu/ruby-mechanize@2.7.5-2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.5-1",
        "2.7.5-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-mechanize",
            "binary_version": "2.7.6-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "ruby-mechanize",
        "purl": "pkg:deb/ubuntu/ruby-mechanize@2.7.6-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.6-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ruby-mechanize",
            "binary_version": "2.7.7-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "ruby-mechanize",
        "purl": "pkg:deb/ubuntu/ruby-mechanize@2.7.7-3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.7-1",
        "2.7.7-3"
      ]
    }
  ],
  "aliases": [],
  "details": "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\u0027 methods which implicitly use Ruby\u0027s 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.",
  "id": "UBUNTU-CVE-2021-21289",
  "modified": "2025-10-24T04:50:06Z",
  "published": "2021-02-02T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-21289"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sparklemotion/mechanize/security/advisories/GHSA-qrqm-fpv6-6r8g"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sparklemotion/mechanize/commit/aae0b13514a1a0caf93b1cf233733c50e679069a"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sparklemotion/mechanize/commit/2ac906b26f4a565a0af92df5fb9c8a36c2b75375"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sparklemotion/mechanize/commit/f43a3952ab39341136656b0a8b2c8597ba1b4adc"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sparklemotion/mechanize/commit/b48b12f5db33c5a94a14dfcab8adf3e73cfa0388"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sparklemotion/mechanize/commit/63f8779e49664d5e95fae8d42d04c8e373162b3c"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sparklemotion/mechanize/commit/66a6a1bfa653a5f13274a396a5e5441238656aa0"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/sparklemotion/mechanize/releases/tag/v2.7.7"
    },
    {
      "type": "REPORT",
      "url": "https://rubygems.org/gems/mechanize/"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-21289"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-21289"
  ]
}



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