github - GHSA-8877-prq4-9xfw

GHSA-8877-prq4-9xfw

Vulnerability from github

Published

2021-03-02 03:44

Modified

2023-07-03 22:06

Severity ?

6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Summary

Actionpack Open Redirect Vulnerability

Details

The Host Authorization middleware in Action Pack before 6.1.2.1, 6.0.3.5 suffers from an open redirect vulnerability. Specially crafted Host headers in combination with certain "allowed host" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website.

Show details on source website

JSON

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 6.0.3.4"
      },
      "package": {
        "ecosystem": "RubyGems",
        "name": "actionpack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.0.3.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
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      },
      "package": {
        "ecosystem": "RubyGems",
        "name": "actionpack"
      },
      "ranges": [
        {
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            {
              "introduced": "6.1.0"
            },
            {
              "fixed": "6.1.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-22881"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-02T03:44:04Z",
    "nvd_published_at": "2021-02-11T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The Host Authorization middleware in Action Pack before 6.1.2.1, 6.0.3.5 suffers from an open redirect vulnerability. Specially crafted `Host` headers in combination with certain \"allowed host\" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. ",
  "id": "GHSA-8877-prq4-9xfw",
  "modified": "2023-07-03T22:06:02Z",
  "published": "2021-03-02T03:44:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22881"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails/commit/b5de7b3a4787d8a55aaad39f477c16e3af65e444"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1047447"
    },
    {
      "type": "WEB",
      "url": "https://benjamin-bouchet.com/cve-2021-22881-faille-de-securite-dans-le-middleware-hostauthorization"
    },
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    },
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      "url": "https://github.com/rails/rails"
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    },
    {
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      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2021-22881.yml"
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      "url": "https://groups.google.com/g/rubyonrails-security/c/zN_3qA26l6E"
    },
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    },
    {
      "type": "WEB",
      "url": "https://rubygems.org/gems/actionpack"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/05/05/2"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/08/20/1"
    },
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  "severity": [
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      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Actionpack Open Redirect Vulnerability "
}

cve-2021-22881

Vulnerability from cvelistv5

Published

2021-02-11 16:12

Modified

2024-08-03 18:58

Severity ?

Summary

The Host Authorization middleware in Action Pack before 6.1.2.1, 6.0.3.5 suffers from an open redirect vulnerability. Specially crafted `Host` headers in combination with certain "allowed host" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. Impacted applications will have allowed hosts with a leading dot. When an allowed host contains a leading dot, a specially crafted `Host` header can be used to redirect to a malicious website.

References

▼	URL	Tags
	https://hackerone.com/reports/1047447	x_refsource_MISC
	https://discuss.rubyonrails.org/t/cve-2021-22881-possible-open-redirect-in-host-authorization-middleware/77130	x_refsource_MISC
	https://benjamin-bouchet.com/cve-2021-22881-faille-de-securite-dans-le-middleware-hostauthorization/	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3/	vendor-advisory, x_refsource_FEDORA
	http://www.openwall.com/lists/oss-security/2021/05/05/2	mailing-list, x_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2021/08/20/1	mailing-list, x_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2021/12/14/5	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	https://github.com/rails/rails	Version: Fixed in 6.1.2.1, 6.0.3.5

Show details on NVD website

JSON

To clipboard

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gsd-2021-22881

Vulnerability from gsd

Modified

2021-02-10 00:00

Details

There is a possible open redirect vulnerability in the Host Authorization middleware in Action Pack. This vulnerability has been assigned the CVE identifier CVE-2021-22881. Versions Affected: >= 6.0.0 Not affected: < 6.0.0 Fixed Versions: 6.1.2.1, 6.0.3.5 Impact ------ Specially crafted "Host" headers in combination with certain "allowed host" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. Impacted applications will have allowed hosts with a leading dot. For example, configuration files that look like this: ``` config.hosts << '.tkte.ch' ``` When an allowed host contains a leading dot, a specially crafted Host header can be used to redirect to a malicious website. Workarounds ----------- In the case a patch can't be applied, the following monkey patch can be used in an initializer: ```ruby module ActionDispatch class HostAuthorization private def authorized?(request) valid_host = / \A (?<host>[a-z0-9.-]+|\[[a-f0-9]*:[a-f0-9\.:]+\]) (:\d+)? \z /x origin_host = valid_host.match( request.get_header("HTTP_HOST").to_s.downcase) forwarded_host = valid_host.match( request.x_forwarded_host.to_s.split(/,\s?/).last) origin_host && @permissions.allows?(origin_host[:host]) && ( forwarded_host.nil? || @permissions.allows?(forwarded_host[:host])) end end end ```

Aliases

CVE-2021-22881

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-22881",
    "description": "The Host Authorization middleware in Action Pack before 6.1.2.1, 6.0.3.5 suffers from an open redirect vulnerability. Specially crafted `Host` headers in combination with certain \"allowed host\" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. Impacted applications will have allowed hosts with a leading dot. When an allowed host contains a leading dot, a specially crafted `Host` header can be used to redirect to a malicious website.",
    "id": "GSD-2021-22881",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-22881.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "actionpack",
            "purl": "pkg:gem/actionpack"
          }
        }
      ],
      "aliases": [
        "CVE-2021-22881",
        "GHSA-8877-prq4-9xfw"
      ],
      "details": "There is a possible open redirect vulnerability in the Host Authorization\nmiddleware in Action Pack. This vulnerability has been assigned the CVE\nidentifier CVE-2021-22881.\n\nVersions Affected:  \u003e= 6.0.0\nNot affected:       \u003c 6.0.0\nFixed Versions:     6.1.2.1, 6.0.3.5\n\nImpact\n------\nSpecially crafted \"Host\" headers in combination with certain \"allowed host\"\nformats can cause the Host Authorization middleware in Action Pack to redirect\nusers to a malicious website.\n\nImpacted applications will have allowed hosts with a leading dot.  For\nexample, configuration files that look like this:\n\n```\nconfig.hosts \u003c\u003c  \u0027.tkte.ch\u0027\n```\n\nWhen an allowed host contains a leading dot, a specially crafted Host header\ncan be used to redirect to a malicious website.\n\nWorkarounds\n-----------\nIn the case a patch can\u0027t be applied, the following monkey patch can be used\nin an initializer:\n\n```ruby\nmodule ActionDispatch\n  class HostAuthorization\n    private\n      def authorized?(request)\n        valid_host = /\n          \\A\n          (?\u003chost\u003e[a-z0-9.-]+|\\[[a-f0-9]*:[a-f0-9\\.:]+\\])\n          (:\\d+)?\n          \\z\n        /x\n\n        origin_host = valid_host.match(\n          request.get_header(\"HTTP_HOST\").to_s.downcase)\n        forwarded_host = valid_host.match(\n          request.x_forwarded_host.to_s.split(/,\\s?/).last)\n\n        origin_host \u0026\u0026 @permissions.allows?(origin_host[:host]) \u0026\u0026 (\n          forwarded_host.nil? || @permissions.allows?(forwarded_host[:host]))\n      end\n  end\nend\n```\n",
      "id": "GSD-2021-22881",
      "modified": "2021-02-10T00:00:00.000Z",
      "published": "2021-02-10T00:00:00.000Z",
      "references": [
        {
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          "url": "https://groups.google.com/g/rubyonrails-security/c/zN_3qA26l6E"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 6.1,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Possible Open Redirect in Host Authorization Middleware"
    }
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            "name": "[oss-security] 20210505 [CVE-2021-22903] Possible Open Redirect Vulnerability in Action Pack",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2021/05/05/2"
          },
          {
            "name": "[oss-security] 20210819 [CVE-2021-22942] Possible Open Redirect in Host Authorization Middleware",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2021/08/20/1"
          },
          {
            "name": "[oss-security] 20211214 [CVE-2021-44528] Possible Open Redirect in Host Authorization Middleware",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2021/12/14/5"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2021-22881",
      "cvss_v3": 6.1,
      "date": "2021-02-10",
      "description": "There is a possible open redirect vulnerability in the Host Authorization\nmiddleware in Action Pack. This vulnerability has been assigned the CVE\nidentifier CVE-2021-22881.\n\nVersions Affected:  \u003e= 6.0.0\nNot affected:       \u003c 6.0.0\nFixed Versions:     6.1.2.1, 6.0.3.5\n\nImpact\n------\nSpecially crafted \"Host\" headers in combination with certain \"allowed host\"\nformats can cause the Host Authorization middleware in Action Pack to redirect\nusers to a malicious website.\n\nImpacted applications will have allowed hosts with a leading dot.  For\nexample, configuration files that look like this:\n\n```\nconfig.hosts \u003c\u003c  \u0027.tkte.ch\u0027\n```\n\nWhen an allowed host contains a leading dot, a specially crafted Host header\ncan be used to redirect to a malicious website.\n\nWorkarounds\n-----------\nIn the case a patch can\u0027t be applied, the following monkey patch can be used\nin an initializer:\n\n```ruby\nmodule ActionDispatch\n  class HostAuthorization\n    private\n      def authorized?(request)\n        valid_host = /\n          \\A\n          (?\u003chost\u003e[a-z0-9.-]+|\\[[a-f0-9]*:[a-f0-9\\.:]+\\])\n          (:\\d+)?\n          \\z\n        /x\n\n        origin_host = valid_host.match(\n          request.get_header(\"HTTP_HOST\").to_s.downcase)\n        forwarded_host = valid_host.match(\n          request.x_forwarded_host.to_s.split(/,\\s?/).last)\n\n        origin_host \u0026\u0026 @permissions.allows?(origin_host[:host]) \u0026\u0026 (\n          forwarded_host.nil? || @permissions.allows?(forwarded_host[:host]))\n      end\n  end\nend\n```\n",
      "framework": "rails",
      "gem": "actionpack",
      "ghsa": "8877-prq4-9xfw",
      "patched_versions": [
        "~\u003e 6.0.3, \u003e= 6.0.3.5",
        "\u003e= 6.1.2.1"
      ],
      "title": "Possible Open Redirect in Host Authorization Middleware",
      "unaffected_versions": [
        "\u003c 6.0.0"
      ],
      "url": "https://groups.google.com/g/rubyonrails-security/c/zN_3qA26l6E"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=6.0.0 \u003c6.0.3.5||\u003e=6.1.0 \u003c6.1.2.1||=33",
          "affected_versions": "All versions starting from 6.0.0 before 6.0.3.5, all versions starting from 6.1.0 before 6.1.2.1, version 33",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-601",
            "CWE-937"
          ],
          "date": "2021-09-21",
          "description": "The Host Authorization middleware in Action Pack suffers from an open redirect vulnerability. Specially crafted `Host` headers in combination with certain \"allowed host\" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. Impacted applications will have allowed hosts with a leading dot. When an allowed host contains a leading dot, a specially crafted `Host` header can be used to redirect to a malicious website.",
          "fixed_versions": [
            "6.0.3.5",
            "6.1.2.1"
          ],
          "identifier": "CVE-2021-22881",
          "identifiers": [
            "CVE-2021-22881"
          ],
          "not_impacted": "All versions before 6.0.0, all versions starting from 6.0.3.5 before 6.1.0, all versions starting from 6.1.2.1 before 33, all versions after 33",
          "package_slug": "gem/actionpack",
          "pubdate": "2021-02-11",
          "solution": "Upgrade to versions 6.0.3.5, 6.1.2.1 or above.",
          "title": "URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22881"
          ],
          "uuid": "b6b7cac1-ed1c-448d-921f-79262ac7d9e4"
        },
        {
          "affected_range": "\u003e=6.0.0 \u003c6.0.3.5||\u003e=6.1.0 \u003c6.1.2.1",
          "affected_versions": "All versions starting from 6.0.0 before 6.0.3.5, all versions starting from 6.1.0 before 6.1.2.1",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-601",
            "CWE-937"
          ],
          "date": "2022-01-04",
          "description": "The Host Authorization middleware in Action Pack suffers from an open redirect vulnerability. Specially crafted `Host` headers in combination with certain \"allowed host\" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. Impacted applications will have allowed hosts with a leading dot. When an allowed host contains a leading dot, a specially crafted `Host` header can be used to redirect to a malicious website.",
          "fixed_versions": [
            "6.0.3.5",
            "6.1.2.1"
          ],
          "identifier": "CVE-2021-22881",
          "identifiers": [
            "CVE-2021-22881"
          ],
          "not_impacted": "All versions before 6.0.0, all versions starting from 6.0.3.5 before 6.1.0, all versions starting from 6.1.2.1",
          "package_slug": "gem/rails",
          "pubdate": "2021-02-11",
          "solution": "Upgrade to versions 6.0.3.5, 6.1.2.1 or above.",
          "title": "URL Redirection to Untrusted Site (Open Redirect)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-22881",
            "https://discuss.rubyonrails.org/t/cve-2021-22881-possible-open-redirect-in-host-authorization-middleware/77130"
          ],
          "uuid": "155d2c71-7cce-497d-97e0-82f2c90e1e54"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "6.0.3.5",
                "versionStartIncluding": "6.0.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "6.1.2.1",
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              }
            ],
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          },
          {
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              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
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            "operator": "OR"
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      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve-assignments@hackerone.com",
          "ID": "CVE-2021-22881"
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              "value": "The Host Authorization middleware in Action Pack before 6.1.2.1, 6.0.3.5 suffers from an open redirect vulnerability. Specially crafted `Host` headers in combination with certain \"allowed host\" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. Impacted applications will have allowed hosts with a leading dot. When an allowed host contains a leading dot, a specially crafted `Host` header can be used to redirect to a malicious website."
            }
          ]
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        "problemtype": {
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                  "value": "CWE-601"
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              ]
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          "reference_data": [
            {
              "name": "https://hackerone.com/reports/1047447",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://hackerone.com/reports/1047447"
            },
            {
              "name": "https://discuss.rubyonrails.org/t/cve-2021-22881-possible-open-redirect-in-host-authorization-middleware/77130",
              "refsource": "MISC",
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                "Vendor Advisory"
              ],
              "url": "https://discuss.rubyonrails.org/t/cve-2021-22881-possible-open-redirect-in-host-authorization-middleware/77130"
            },
            {
              "name": "https://benjamin-bouchet.com/cve-2021-22881-faille-de-securite-dans-le-middleware-hostauthorization/",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://benjamin-bouchet.com/cve-2021-22881-faille-de-securite-dans-le-middleware-hostauthorization/"
            },
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              "name": "FEDORA-2021-b571fca1b8",
              "refsource": "FEDORA",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XQ3NS4IBYE2I3MVMGAHFZBZBIZGHXHT3/"
            },
            {
              "name": "[oss-security] 20210505 [CVE-2021-22903] Possible Open Redirect Vulnerability in Action Pack",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Mitigation",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2021/05/05/2"
            },
            {
              "name": "[oss-security] 20210819 [CVE-2021-22942] Possible Open Redirect in Host Authorization Middleware",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Mitigation",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2021/08/20/1"
            },
            {
              "name": "[oss-security] 20211214 [CVE-2021-44528] Possible Open Redirect in Host Authorization Middleware",
              "refsource": "MLIST",
              "tags": [
                "Exploit",
                "Mailing List",
                "Patch"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2021/12/14/5"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2022-01-04T16:38Z",
      "publishedDate": "2021-02-11T18:15Z"
    }
  }
}

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-8877-prq4-9xfw

Vulnerability from github

cve-2021-22881

Vulnerability from cvelistv5

gsd-2021-22881

Vulnerability from gsd

Tags

Sightings

Nomenclature