gsd-2022-23519
Vulnerability from gsd
Modified
2022-12-13 00:00
Details
## Summary There is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer. - Versions affected: ALL - Not affected: NONE - Fixed versions: 1.4.4 ## Impact A possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags in either of the following ways: - allow both "math" and "style" elements, - or allow both "svg" and "style" elements Code is only impacted if allowed tags are being overridden. Applications may be doing this in four different ways: 1. using application configuration: ```ruby # In config/application.rb config.action_view.sanitized_allowed_tags = ["math", "style"] # or config.action_view.sanitized_allowed_tags = ["svg", "style"] ``` see https://guides.rubyonrails.org/configuring.html#configuring-action-view 2. using a `:tags` option to the Action View helper `sanitize`: ``` <%= sanitize @comment.body, tags: ["math", "style"] %> <%# or %> <%= sanitize @comment.body, tags: ["svg", "style"] %> ``` see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize 3. using Rails::Html::SafeListSanitizer class method `allowed_tags=`: ```ruby # class-level option Rails::Html::SafeListSanitizer.allowed_tags = ["math", "style"] # or Rails::Html::SafeListSanitizer.allowed_tags = ["svg", "style"] ``` 4. using a `:tags` options to the Rails::Html::SafeListSanitizer instance method `sanitize`: ```ruby # instance-level option Rails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: ["math", "style"]) # or Rails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: ["svg", "style"]) ``` All users overriding the allowed tags by any of the above mechanisms to include (("math" or "svg") and "style") should either upgrade or use one of the workarounds immediately. ## Workarounds Remove "style" from the overridden allowed tags, or remove "math" and "svg" from the overridden allowed tags.
Aliases
Aliases
CVE-2022-23519


To clipboard 

{
  "GSD": {
    "alias": "CVE-2022-23519",
    "id": "GSD-2022-23519",
    "references": [
      "https://www.suse.com/security/cve/CVE-2022-23519.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "rails-html-sanitizer",
            "purl": "pkg:gem/rails-html-sanitizer"
          }
        }
      ],
      "aliases": [
        "CVE-2022-23519",
        "GHSA-9h9g-93gc-623h"
      ],
      "details": "## Summary\n\nThere is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.\n\n- Versions affected: ALL\n- Not affected: NONE\n- Fixed versions: 1.4.4\n\n## Impact\n\nA possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer\u0027s allowed tags in either of the following ways:\n\n- allow both \"math\" and \"style\" elements,\n- or allow both \"svg\" and \"style\" elements\n\nCode is only impacted if allowed tags are being overridden. Applications may be doing this in four different ways:\n\n1. using application configuration:\n\n  ```ruby\n  # In config/application.rb\n  config.action_view.sanitized_allowed_tags = [\"math\", \"style\"]\n  # or\n  config.action_view.sanitized_allowed_tags = [\"svg\", \"style\"]\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\", \"style\"] %\u003e\n  \u003c%# or %\u003e\n  \u003c%= sanitize @comment.body, tags: [\"svg\", \"style\"] %\u003e\n  ```\n\n  see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize\n\n3. using Rails::Html::SafeListSanitizer class method `allowed_tags=`:\n\n  ```ruby\n  # class-level option\n  Rails::Html::SafeListSanitizer.allowed_tags = [\"math\", \"style\"]\n  # or\n  Rails::Html::SafeListSanitizer.allowed_tags = [\"svg\", \"style\"]\n  ```\n\n4. using a `:tags` options to the Rails::Html::SafeListSanitizer instance method `sanitize`:\n\n  ```ruby\n  # instance-level option\n  Rails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: [\"math\", \"style\"])\n  # or\n  Rails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: [\"svg\", \"style\"])\n  ```\n\nAll users overriding the allowed tags by any of the above mechanisms to include ((\"math\" or \"svg\") and \"style\") should either upgrade or use one of the workarounds immediately.\n\n## Workarounds\n\nRemove \"style\" from the overridden allowed tags, or remove \"math\" and \"svg\" from the overridden allowed tags.\n",
      "id": "GSD-2022-23519",
      "modified": "2022-12-13T00:00:00.000Z",
      "published": "2022-12-13T00:00:00.000Z",
      "references": [
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          "type": "WEB",
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          "type": "WEB",
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        },
        {
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        }
      ],
      "schema_version": "1.4.0",
      "severity": [
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          "score": 6.1,
          "type": "CVSS_V3"
        }
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      "summary": "Possible XSS vulnerability with certain configurations of rails-html-sanitizer"
    }
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      },
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          "vendor_data": [
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              "product": {
                "product_data": [
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                    "product_name": "rails-html-sanitizer",
                    "version": {
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                          "version_affected": "=",
                          "version_value": "\u003c 1.4.4"
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      "source": {
        "advisory": "GHSA-9h9g-93gc-623h",
        "discovery": "UNKNOWN"
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      "cve": "2022-23519",
      "cvss_v3": 6.1,
      "date": "2022-12-13",
      "description": "## Summary\n\nThere is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.\n\n- Versions affected: ALL\n- Not affected: NONE\n- Fixed versions: 1.4.4\n\n## Impact\n\nA possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer\u0027s allowed tags in either of the following ways:\n\n- allow both \"math\" and \"style\" elements,\n- or allow both \"svg\" and \"style\" elements\n\nCode is only impacted if allowed tags are being overridden. Applications may be doing this in four different ways:\n\n1. using application configuration:\n\n  ```ruby\n  # In config/application.rb\n  config.action_view.sanitized_allowed_tags = [\"math\", \"style\"]\n  # or\n  config.action_view.sanitized_allowed_tags = [\"svg\", \"style\"]\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\", \"style\"] %\u003e\n  \u003c%# or %\u003e\n  \u003c%= sanitize @comment.body, tags: [\"svg\", \"style\"] %\u003e\n  ```\n\n  see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize\n\n3. using Rails::Html::SafeListSanitizer class method `allowed_tags=`:\n\n  ```ruby\n  # class-level option\n  Rails::Html::SafeListSanitizer.allowed_tags = [\"math\", \"style\"]\n  # or\n  Rails::Html::SafeListSanitizer.allowed_tags = [\"svg\", \"style\"]\n  ```\n\n4. using a `:tags` options to the Rails::Html::SafeListSanitizer instance method `sanitize`:\n\n  ```ruby\n  # instance-level option\n  Rails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: [\"math\", \"style\"])\n  # or\n  Rails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: [\"svg\", \"style\"])\n  ```\n\nAll users overriding the allowed tags by any of the above mechanisms to include ((\"math\" or \"svg\") and \"style\") should either upgrade or use one of the workarounds immediately.\n\n## Workarounds\n\nRemove \"style\" from the overridden allowed tags, or remove \"math\" and \"svg\" from the overridden allowed tags.\n",
      "gem": "rails-html-sanitizer",
      "ghsa": "9h9g-93gc-623h",
      "patched_versions": [
        "\u003e= 1.4.4"
      ],
      "related": {
        "url": [
          "https://cwe.mitre.org/data/definitions/79.html",
          "https://hackerone.com/reports/1656627"
        ]
      },
      "title": "Possible XSS vulnerability with certain configurations of rails-html-sanitizer",
      "url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623h"
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          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "cwe_ids": [
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            "CWE-79",
            "CWE-937"
          ],
          "date": "2022-12-16",
          "description": "rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer\u0027s allowed tags in either of the following ways: allow both \"math\" and \"style\" elements, or allow both \"svg\" and \"style\" elements. Code is only impacted if allowed tags are being overridden. . This issue is fixed in version 1.4.4. All users overriding the allowed tags to include \"math\" or \"svg\" and \"style\" should either upgrade or use the following workaround immediately: Remove \"style\" from the overridden allowed tags, or remove \"math\" and \"svg\" from the overridden allowed tags.",
          "fixed_versions": [
            "1.4.4"
          ],
          "identifier": "CVE-2022-23519",
          "identifiers": [
            "CVE-2022-23519",
            "GHSA-9h9g-93gc-623h",
            "GMS-2022-8299"
          ],
          "not_impacted": "All versions starting from 1.4.4",
          "package_slug": "gem/rails-html-sanitizer",
          "pubdate": "2022-12-14",
          "solution": "Upgrade to version 1.4.4 or above.",
          "title": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2022-23519",
            "https://hackerone.com/reports/1656627",
            "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623h",
            "https://github.com/advisories/GHSA-9h9g-93gc-623h"
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          "uuid": "14e9e407-48cc-4c20-ac86-39f71f55fc99"
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          "cwe_ids": [
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            "CWE-79",
            "CWE-937"
          ],
          "date": "2022-12-13",
          "description": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027) in rails-html-sanitizer.",
          "fixed_versions": [
            "1.4.4"
          ],
          "identifier": "GMS-2022-8299",
          "identifiers": [
            "GHSA-9h9g-93gc-623h",
            "GMS-2022-8299",
            "CVE-2022-23519"
          ],
          "not_impacted": "All versions starting from 1.4.4",
          "package_slug": "gem/rails-html-sanitizer",
          "pubdate": "2022-12-13",
          "solution": "Upgrade to version 1.4.4 or above.",
          "title": "Duplicate of ./gem/rails-html-sanitizer/CVE-2022-23519.yml",
          "urls": [
            "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-9h9g-93gc-623h",
            "https://hackerone.com/reports/1656627",
            "https://github.com/advisories/GHSA-9h9g-93gc-623h"
          ],
          "uuid": "3579ccc6-601e-412d-9f40-02327e052d2d"
        }
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            "lang": "en",
            "value": "rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer\u0027s allowed tags in either of the following ways: allow both \"math\" and \"style\" elements,  or allow both \"svg\" and \"style\" elements. Code is only impacted if allowed tags are being overridden. . This issue is fixed in version 1.4.4. All users overriding the allowed tags to include \"math\" or \"svg\" and \"style\" should either upgrade or use the following workaround immediately: Remove \"style\" from the overridden allowed tags, or remove \"math\" and \"svg\" from the overridden allowed tags.\n"
          },
          {
            "lang": "es",
            "value": "rails-html-sanitizer es responsable de sanitizar fragmentos HTML en aplicaciones Rails. Antes de la versi\u00f3n 1.4.4, una posible vulnerabilidad XSS con ciertas configuraciones de Rails::Html::Sanitizer pod\u00eda permitir a un atacante inyectar contenido si el desarrollador de la aplicaci\u00f3n hab\u00eda anulado las etiquetas permitidas del sanitizador de cualquiera de las siguientes maneras: permitir ambas \"math \" y \"syle\", o permitir elementos \"svg\" y \"style\". El c\u00f3digo solo se ve afectado si se anulan las etiquetas permitidas. . Este problema se solucion\u00f3 en la versi\u00f3n 1.4.4. Todos los usuarios que anulen las etiquetas permitidas para incluir \"math\" o \"svg\" y \"style\" deben actualizar o utilizar el siguiente workaround inmediatamente: eliminar \"style\" de las etiquetas permitidas anuladas, o eliminar \"math\" y \"svg\" de la etiquetas permitidas anuladas."
          }
        ],
        "id": "CVE-2022-23519",
        "lastModified": "2024-02-01T15:59:04.693",
        "metrics": {
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                "attackVector": "NETWORK",
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                "userInteraction": "REQUIRED",
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        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Analyzed",
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}


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