github - ghsa-g8ww-46x2-2p65

ghsa-g8ww-46x2-2p65

Vulnerability from github

Published

2021-05-05 19:48

Modified

2023-08-08 15:37

Severity ?

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

Summary

Denial of Service in Action Dispatch

Details

Impact

There is a possible Denial of Service vulnerability in Action Dispatch. Carefully crafted Accept headers can cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine.

Releases

The fixed releases are available at the normal locations.

Workarounds

The following monkey patch placed in an initializer can be used to work around the issue.

ruby module Mime class Type MIME_REGEXP = /\A(?:\*\/\*|#{MIME_NAME}\/(?:\*|#{MIME_NAME})(?>\s*#{MIME_PARAMETER}\s*)*)\z/ end end

Patches

To aid users who aren't able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset.

6-0-Prevent-catastrophic-backtracking-during-mime-parsin.patch - Patch for 6.0 series
6-1-Prevent-catastrophic-backtracking-during-mime-parsin.patch - Patch for 6.1 series

Please note that only the 6.1.Z, 6.0.Z, and 5.2.Z series are supported at present. Users of earlier unsupported releases are advised to upgrade as soon as possible as we cannot guarantee the continued availability of security fixes for unsupported releases.

Credits

Thanks to Security Curious security...@pm.me for reporting this!

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 6.0.3.6"
      },
      "package": {
        "ecosystem": "RubyGems",
        "name": "actionpack"
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      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.0.3.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 6.1.3.1"
      },
      "package": {
        "ecosystem": "RubyGems",
        "name": "actionpack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.1.0"
            },
            {
              "fixed": "6.1.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-22902"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-05T19:47:37Z",
    "nvd_published_at": "2021-06-11T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "Impact\n------\nThere is a possible Denial of Service vulnerability in Action Dispatch. Carefully crafted Accept headers can cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine.\n\nReleases\n--------\nThe fixed releases are available at the normal locations.\n\nWorkarounds\n-----------\nThe following monkey patch placed in an initializer can be used to work around the issue.\n\n```ruby\nmodule Mime\n  class Type\n    MIME_REGEXP = /\\A(?:\\*\\/\\*|#{MIME_NAME}\\/(?:\\*|#{MIME_NAME})(?\u003e\\s*#{MIME_PARAMETER}\\s*)*)\\z/\n  end\nend\n```\n\nPatches\n-------\nTo aid users who aren\u0027t able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset.\n\n* 6-0-Prevent-catastrophic-backtracking-during-mime-parsin.patch - Patch for 6.0 series\n* 6-1-Prevent-catastrophic-backtracking-during-mime-parsin.patch - Patch for 6.1 series\n\nPlease note that only the 6.1.Z, 6.0.Z, and 5.2.Z series are supported at present. Users of earlier unsupported releases are advised to upgrade as soon as possible as we cannot guarantee the continued availability of security fixes for unsupported releases.\n\nCredits\n-------\n\nThanks to Security Curious \u003csecurity...@pm.me\u003e for reporting this!",
  "id": "GHSA-g8ww-46x2-2p65",
  "modified": "2023-08-08T15:37:20Z",
  "published": "2021-05-05T19:48:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22902"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1138654"
    },
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    },
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      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of Service in Action Dispatch"
}

gsd-2021-22902

Vulnerability from gsd

Modified

2021-05-05 00:00

Details

There is a possible Denial of Service vulnerability in the Mime type parser of Action Dispatch. This vulnerability has been assigned the CVE identifier CVE-2021-22902. Versions Affected: >= 6.0.0 Not affected: < 6.0.0 Fixed Versions: 6.0.3.7, 6.1.3.2 Impact ------ There is a possible Denial of Service vulnerability in Action Dispatch. Carefully crafted Accept headers can cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine. Workarounds ----------- The following monkey patch placed in an initializer can be used to work around the issue: ```ruby module Mime class Type MIME_REGEXP = /\A(?:\*\/\*|#{MIME_NAME}\/(?:\*|#{MIME_NAME})(?>\s*#{MIME_PARAMETER}\s*)*)\z/ end end ```

Aliases

CVE-2021-22902

JSON

To clipboard

{
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    "alias": "CVE-2021-22902",
    "description": "The actionpack ruby gem (a framework for handling and responding to web requests in Rails) before 6.0.3.7, 6.1.3.2 suffers from a possible denial of service vulnerability in the Mime type parser of Action Dispatch. Carefully crafted Accept headers can cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine.",
    "id": "GSD-2021-22902",
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    ]
  },
  "gsd": {
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      "type": "vulnerability"
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}

cve-2021-22902

Vulnerability from cvelistv5

Published

2021-06-11 15:49

Modified

2024-08-03 18:58

Severity ?

Summary

The actionpack ruby gem (a framework for handling and responding to web requests in Rails) before 6.0.3.7, 6.1.3.2 suffers from a possible denial of service vulnerability in the Mime type parser of Action Dispatch. Carefully crafted Accept headers can cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine.

References

▼	URL	Tags
	https://hackerone.com/reports/1138654	x_refsource_MISC
	https://discuss.rubyonrails.org/t/cve-2021-22902-possible-denial-of-service-vulnerability-in-action-dispatch/77866	x_refsource_MISC

Impacted products

▼	Vendor	Product
	n/a	https://github.com/rails/rails

Show details on NVD website

JSON

To clipboard

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                        "version_data": [
                          {
                            "version_value": "Fixed in 6.0.3.7, 6.1.3.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The actionpack ruby gem (a framework for handling and responding to web requests in Rails) before 6.0.3.7, 6.1.3.2 suffers from a possible denial of service vulnerability in the Mime type parser of Action Dispatch. Carefully crafted Accept headers can cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Denial of Service (CWE-400)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://hackerone.com/reports/1138654",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/1138654"
            },
            {
              "name": "https://discuss.rubyonrails.org/t/cve-2021-22902-possible-denial-of-service-vulnerability-in-action-dispatch/77866",
              "refsource": "MISC",
              "url": "https://discuss.rubyonrails.org/t/cve-2021-22902-possible-denial-of-service-vulnerability-in-action-dispatch/77866"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2021-22902",
    "datePublished": "2021-06-11T15:49:38",
    "dateReserved": "2021-01-06T00:00:00",
    "dateUpdated": "2024-08-03T18:58:25.713Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

ghsa-g8ww-46x2-2p65

Vulnerability from github

Impact

Releases

Workarounds

Patches

Credits

gsd-2021-22902

Vulnerability from gsd

cve-2021-22902

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature