GHSA-WF2X-8W6J-QW37

Vulnerability from github – Published: 2024-01-04 21:54 – Updated: 2024-01-04 21:54
VLAI?
Summary
view_component Cross-site Scripting vulnerability
Details

Impact

What kind of vulnerability is it? Who is impacted?

This is an XSS vulnerability that has the potential to impact anyone rendering a component directly from a controller with the view_component gem. Note that only components that define a #call method (i.e. instead of using a sidecar template) are affected. The return value of the #call method is not sanitized and can include user-defined content.

In addition, the return value of the #output_postamble method is not sanitized, which can also lead to XSS issues.

Patches

Has the problem been patched? What versions should users upgrade to?

Versions 3.9.0 has been released and fully mitigates both the #call and the #output_postamble vulnerabilities.

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

Sanitize the return value of #call, eg:

class MyComponent < ApplicationComponent
  def call
    html_escape("<div>#{user_input}</div>")
  end
end

References

Are there any links users can visit to find out more?

https://github.com/ViewComponent/view_component/pull/1950

For more information

If you have any questions or comments about this advisory:

Open an issue in the github/view_component project.

Severity ?
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "view_component"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.9.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "view_component"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.83.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-21636"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-01-04T21:54:34Z",
    "nvd_published_at": "2024-01-04T20:15:25Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nThis is an XSS vulnerability that has the potential to impact anyone rendering a component directly from a controller with the view_component gem. Note that only components that define a [`#call` method](https://viewcomponent.org/guide/templates.html#call) (i.e. instead of using a sidecar template) are affected. The return value of the `#call` method is not sanitized and can include user-defined content.\n\nIn addition, the return value of the [`#output_postamble` method](https://viewcomponent.org/api.html#output_postamble--string) is not sanitized, which can also lead to XSS issues.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\nVersions 3.9.0 has been released and fully mitigates both the `#call` and the `#output_postamble` vulnerabilities.\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nSanitize the return value of `#call`, eg:\n\n```ruby\nclass MyComponent \u003c ApplicationComponent\n  def call\n    html_escape(\"\u003cdiv\u003e#{user_input}\u003c/div\u003e\")\n  end\nend\n```\n\n### References\n_Are there any links users can visit to find out more?_\n\nhttps://github.com/ViewComponent/view_component/pull/1950\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\nOpen an issue in the [github/view_component](https://github.com/github/view_component) project.",
  "id": "GHSA-wf2x-8w6j-qw37",
  "modified": "2024-01-04T21:54:34Z",
  "published": "2024-01-04T21:54:34Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ViewComponent/view_component/security/advisories/GHSA-wf2x-8w6j-qw37"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21636"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ViewComponent/view_component/pull/1950"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ViewComponent/view_component/pull/1962"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ViewComponent/view_component/commit/0d26944a8d2730ea40e60eae23d70684483e5017"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ViewComponent/view_component/commit/c43d8bafa7117cbce479669a423ab266de150697"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ViewComponent/view_component"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/view_component/CVE-2024-21636.yml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "view_component Cross-site Scripting vulnerability"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.