github - ghsa-cfjx-w229-hgx5

ghsa-cfjx-w229-hgx5

Vulnerability from github

Published

2024-12-02 21:48

Modified

2024-12-03 18:50

Severity ?

2.3 (Low) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Summary

rails-html-sanitizer has XSS vulnerability with certain configurations

Details

Summary

There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0.

Versions affected: 1.6.0
Not affected: < 1.6.0
Fixed versions: 1.6.1

Impact

A possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer may allow an attacker to inject content if HTML5 sanitization is enabled and the application developer has overridden the sanitizer's allowed tags in the following way:

the "math", "mtext", "table", and "style" elements are allowed
and either "mglyph" or "malignmark" are allowed

Code is only impacted if Rails is configured to use HTML5 sanitization, please see documentation for config.action_view.sanitizer_vendor and config.action_text.sanitizer_vendor for more information on these configuration options.

The default configuration is to disallow all of these elements except for "table". Code is only impacted if allowed tags are being overridden. Applications may be doing this in a few different ways:

using application configuration to configure Action View sanitizers' allowed tags:

ruby # In config/application.rb config.action_view.sanitized_allowed_tags = ["math", "mtext", "table", "style", "mglyph"] # or config.action_view.sanitized_allowed_tags = ["math", "mtext", "table", "style", "malignmark"]

see https://guides.rubyonrails.org/configuring.html#configuring-action-view

using a :tags option to the Action View helper sanitize:

<%= sanitize @comment.body, tags: ["math", "mtext", "table", "style", "mglyph"] %> <%# or %> <%= sanitize @comment.body, tags: ["math", "mtext", "table", "style", "malignmark"] %>

see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize

setting Rails::HTML5::SafeListSanitizer class attribute allowed_tags:

ruby # class-level option Rails::HTML5::SafeListSanitizer.allowed_tags = ["math", "mtext", "table", "style", "mglyph"] # or Rails::HTML5::SafeListSanitizer.allowed_tags = ["math", "mtext", "table", "style", "malignmark"]

(note that this class may also be referenced as Rails::Html::SafeListSanitizer)

using a :tags options to the Rails::HTML5::SafeListSanitizer instance method sanitize:

ruby # instance-level option Rails::HTML5::SafeListSanitizer.new.sanitize(@article.body, tags: ["math", "mtext", "table", "style", "mglyph"]) # or Rails::HTML5::SafeListSanitizer.new.sanitize(@article.body, tags: ["math", "mtext", "table", "style", "malignmark"])

(note that this class may also be referenced as Rails::Html::SafeListSanitizer)

setting ActionText::ContentHelper module attribute allowed_tags:

ruby ActionText::ContentHelper.allowed_tags = ["math", "mtext", "table", "style", "mglyph"] # or ActionText::ContentHelper.allowed_tags = ["math", "mtext", "table", "style", "malignmark"]

All users overriding the allowed tags by any of the above mechanisms to include ("math" and "mtext" and "table" and "style" and ("mglyph" or "malignmark")) should either upgrade or use one of the workarounds.

Workarounds

Any one of the following actions will work around this issue:

Remove "mglyph" and "malignmark" from the overridden allowed tags,
Or, downgrade sanitization to HTML4 (see documentation for config.action_view.sanitizer_vendor and config.action_text.sanitizer_vendor for more information).

References

CWE - CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (4.9)
Original report: https://hackerone.com/reports/2519936

Credit

This vulnerability was responsibly reported by So Sakaguchi (mokusou) and taise.

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "rails-html-sanitizer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.6.0"
            },
            {
              "fixed": "1.6.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2024-53988"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-12-02T21:48:42Z",
    "nvd_published_at": "2024-12-02T22:15:11Z",
    "severity": "LOW"
  },
  "details": "## Summary\n\nThere is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails \u003e= 7.1.0.\n\n* Versions affected: 1.6.0\n* Not affected: \u003c 1.6.0\n* Fixed versions: 1.6.1\n\n## Impact\n\nA possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer may allow an attacker to inject content if HTML5 sanitization is enabled and the application developer has overridden the sanitizer\u0027s allowed tags in the following way:\n\n- the \"math\", \"mtext\", \"table\", and \"style\" elements are allowed\n- and either \"mglyph\" or \"malignmark\" are allowed\n\nCode is only impacted if Rails is configured to use HTML5 sanitization, please see documentation for [`config.action_view.sanitizer_vendor`](https://guides.rubyonrails.org/configuring.html#config-action-view-sanitizer-vendor) and [`config.action_text.sanitizer_vendor`](https://guides.rubyonrails.org/configuring.html#config-action-text-sanitizer-vendor) for more information on these configuration options.\n\nThe default configuration is to disallow all of these elements except for \"table\". Code is only impacted if allowed tags are being overridden. Applications may be doing this in a few different ways:\n\n1. using application configuration to configure Action View sanitizers\u0027 allowed tags:\n\n  ```ruby\n  # In config/application.rb\n  config.action_view.sanitized_allowed_tags = [\"math\", \"mtext\", \"table\", \"style\", \"mglyph\"]\n  # or\n  config.action_view.sanitized_allowed_tags = [\"math\", \"mtext\", \"table\", \"style\", \"malignmark\"]\n  ```\n\n  see https://guides.rubyonrails.org/configuring.html#configuring-action-view\n\n2. using a `:tags` option to the Action View helper `sanitize`:\n\n  ```\n  \u003c%= sanitize @comment.body, tags: [\"math\", \"mtext\", \"table\", \"style\", \"mglyph\"] %\u003e\n  \u003c%# or %\u003e\n  \u003c%= sanitize @comment.body, tags: [\"math\", \"mtext\", \"table\", \"style\", \"malignmark\"] %\u003e\n  ```\n\n  see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize\n\n3. setting Rails::HTML5::SafeListSanitizer class attribute `allowed_tags`:\n\n  ```ruby\n  # class-level option\n  Rails::HTML5::SafeListSanitizer.allowed_tags = [\"math\", \"mtext\", \"table\", \"style\", \"mglyph\"]\n  # or\n  Rails::HTML5::SafeListSanitizer.allowed_tags = [\"math\", \"mtext\", \"table\", \"style\", \"malignmark\"]\n  ```\n\n  (note that this class may also be referenced as `Rails::Html::SafeListSanitizer`)\n\n4. using a `:tags` options to the Rails::HTML5::SafeListSanitizer instance method `sanitize`:\n\n  ```ruby\n  # instance-level option\n  Rails::HTML5::SafeListSanitizer.new.sanitize(@article.body, tags: [\"math\", \"mtext\", \"table\", \"style\", \"mglyph\"])\n  # or\n  Rails::HTML5::SafeListSanitizer.new.sanitize(@article.body, tags: [\"math\", \"mtext\", \"table\", \"style\", \"malignmark\"])\n  ```\n\n  (note that this class may also be referenced as `Rails::Html::SafeListSanitizer`)\n\n5. setting ActionText::ContentHelper module attribute `allowed_tags`:\n\n  ```ruby\n  ActionText::ContentHelper.allowed_tags = [\"math\", \"mtext\", \"table\", \"style\", \"mglyph\"]\n  # or\n  ActionText::ContentHelper.allowed_tags = [\"math\", \"mtext\", \"table\", \"style\", \"malignmark\"]\n  ```\n\nAll users overriding the allowed tags by any of the above mechanisms to include (\"math\" and \"mtext\" and \"table\" and \"style\" and (\"mglyph\" or \"malignmark\")) should either upgrade or use one of the workarounds.\n\n\n## Workarounds\n\nAny one of the following actions will work around this issue:\n\n- Remove \"mglyph\" and \"malignmark\" from the overridden allowed tags,\n- Or, downgrade sanitization to HTML4 (see documentation for [`config.action_view.sanitizer_vendor`](https://guides.rubyonrails.org/configuring.html#config-action-view-sanitizer-vendor) and [`config.action_text.sanitizer_vendor`](https://guides.rubyonrails.org/configuring.html#config-action-text-sanitizer-vendor) for more information).\n\n\n## References\n\n- [CWE - CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027) (4.9)](https://cwe.mitre.org/data/definitions/79.html)\n- Original report: https://hackerone.com/reports/2519936\n\n## Credit\n\nThis vulnerability was responsibly reported by So Sakaguchi ([mokusou](https://hackerone.com/mokusou)) and [taise](https://hackerone.com/taise).\n",
  "id": "GHSA-cfjx-w229-hgx5",
  "modified": "2024-12-03T18:50:33Z",
  "published": "2024-12-02T21:48:42Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-cfjx-w229-hgx5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53988"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails-html-sanitizer/commit/a0a3e8b76b696446ffc6bffcff3bc7b7c6393c72"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rails/rails-html-sanitizer"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2024-53988.yml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "rails-html-sanitizer has XSS vulnerability with certain configurations"
}

cve-2024-53988

Vulnerability from cvelistv5

Published

2024-12-02 21:09

Modified

2024-12-03 14:34

Severity ?

2.3 (Low) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Summary

Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0

References

▼	URL	Tags
	https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-cfjx-w229-hgx5	x_refsource_CONFIRM
	https://github.com/rails/rails-html-sanitizer/commit/a0a3e8b76b696446ffc6bffcff3bc7b7c6393c72	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

rails

rails-html-sanitizer

Version: >= 1.6.0, < 1.6.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-53988",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-12-03T14:34:13.985525Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "rails-html-sanitizer",
          "vendor": "rails",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.6.0, \u003c 1.6.1"
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      "descriptions": [
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 2.3,
            "baseSeverity": "LOW",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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          "tags": [
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          "url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-cfjx-w229-hgx5"
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          "name": "https://github.com/rails/rails-html-sanitizer/commit/a0a3e8b76b696446ffc6bffcff3bc7b7c6393c72",
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        "advisory": "GHSA-cfjx-w229-hgx5",
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      "title": "Possible XSS vulnerability with certain configurations of rails-html-sanitizer 1.6.0"
    }
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  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "dateReserved": "2024-11-25T23:14:36.381Z",
    "dateUpdated": "2024-12-03T14:34:23.054Z",
    "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-cfjx-w229-hgx5

Vulnerability from github

Summary

Impact

Workarounds

References

Credit

cve-2024-53988

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature