github - GHSA-4vf4-qmvg-mh7h

GHSA-4vf4-qmvg-mh7h

Vulnerability from github

Published

2022-01-21 23:22

Modified

2023-08-29 16:46

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

Cookie Prefix Spoofing in CGI::Cookie.parse

Details

CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects the CGI gem prior to versions 0.3.1, 0.2.1, 0.1.1, and 0.1.0.1 for Ruby.

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "cgi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.0"
            },
            {
              "fixed": "0.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.3.0"
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "cgi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.2.0"
            },
            {
              "fixed": "0.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.2.0"
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "cgi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-41819"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-565"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-13T18:53:26Z",
    "nvd_published_at": "2022-01-01T06:15:00Z",
    "severity": "HIGH"
  },
  "details": "CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects the CGI gem prior to versions 0.3.1, 0.2.1, 0.1.1, and 0.1.0.1 for Ruby.",
  "id": "GHSA-4vf4-qmvg-mh7h",
  "modified": "2023-08-29T16:46:42Z",
  "published": "2022-01-21T23:22:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41819"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/910552"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ruby/cgi"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/cgi/CVE-2021-41819.yml"
    },
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      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN"
    },
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF"
    },
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    },
    {
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202401-27"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220121-0003"
    },
    {
      "type": "WEB",
      "url": "https://www.ruby-lang.org/en/news/2021/11/24/cookie-prefix-spoofing-in-cgi-cookie-parse-cve-2021-41819"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cookie Prefix Spoofing in CGI::Cookie.parse"
}

The old versions of `CGI::Cookie.parse` applied URL decoding to cookie names. An attacker could exploit this vulnerability to spoof security prefixes in cookie names, which may be able to trick a vulnerable application. By this fix, `CGI::Cookie.parse` no longer decodes cookie names. Note that this is an incompatibility if cookie names that you are using include non-alphanumeric characters that are URL-encoded. This is the same issue of CVE-2020-8184. If you are using Ruby 2.7 or 3.0: * Please update the cgi gem to version 0.3.1, 0.2,1, and 0.1,1 or later. You can use `gem update cgi` to update it. If you are using bundler, please add `gem "cgi", ">= 0.3.1"`` to your `Gemfile`. * Alternatively, please update Ruby to 2.7.5 or 3.0.3. If you are using Ruby 2.6: * Please update Ruby to 2.6.9. You cannot use `gem update cgi` for Ruby 2.6 or prior.

Aliases

CVE-2021-41819

JSON

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    "alias": "CVE-2021-41819",
    "description": "CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects the CGI gem through 0.3.0 for Ruby.",
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      "https://www.debian.org/security/2022/dsa-5066",
      "https://www.debian.org/security/2022/dsa-5067",
      "https://access.redhat.com/errata/RHSA-2022:0708",
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      "https://access.redhat.com/errata/RHSA-2022:6450",
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          "title": "Reliance on Cookies without Validation and Integrity Checking in a Security Decision",
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        "published": "2022-01-01T06:15:07.293",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Permissions Required",
              "Third Party Advisory"
            ],
            "url": "https://hackerone.com/reports/910552"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://security.gentoo.org/glsa/202401-27"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20220121-0003/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Exploit",
              "Vendor Advisory"
            ],
            "url": "https://www.ruby-lang.org/en/news/2021/11/24/cookie-prefix-spoofing-in-cgi-cookie-parse-cve-2021-41819/"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-565"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}

cve-2021-41819

Vulnerability from cvelistv5

Published

2022-01-01 00:00

Modified

2024-08-04 03:22

Severity ?

Summary

CGI::Cookie.parse in Ruby through 2.6.8 mishandles security prefixes in cookie names. This also affects the CGI gem through 0.3.0 for Ruby.

References

▼	URL	Tags
	https://hackerone.com/reports/910552
	https://www.ruby-lang.org/en/news/2021/11/24/cookie-prefix-spoofing-in-cgi-cookie-parse-cve-2021-41819/
	https://security.netapp.com/advisory/ntap-20220121-0003/
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUXQCH6FRKANCVZO2Q7D2SQX33FP3KWN/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTOJGS5IEFDK3UOO7IY4OTTFGHGLSWZF/	vendor-advisory
	https://security.gentoo.org/glsa/202401-27	vendor-advisory

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

To clipboard

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            "tags": [
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            "url": "https://www.ruby-lang.org/en/news/2021/11/24/cookie-prefix-spoofing-in-cgi-cookie-parse-cve-2021-41819/"
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            "tags": [
              "x_transferred"
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            "url": "https://security.netapp.com/advisory/ntap-20220121-0003/"
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          "url": "https://security.netapp.com/advisory/ntap-20220121-0003/"
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    "datePublished": "2022-01-01T00:00:00",
    "dateReserved": "2021-09-29T00:00:00",
    "dateUpdated": "2024-08-04T03:22:24.942Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Action not permitted

GHSA-4vf4-qmvg-mh7h

Vulnerability from github

gsd-2021-41819

Vulnerability from gsd

cve-2021-41819

Vulnerability from cvelistv5

Tags