GHSA-HVCF-6324-CJH7

Vulnerability from github – Published: 2024-08-14 18:08 – Updated: 2024-08-16 18:15
VLAI?
Summary
Persistent Cross-site Scripting in Ibexa RichText Field Type
Details

Impact

The validator for the RichText fieldtype blocklists javascript: and vbscript: in links to prevent XSS. This can leave other options open, and the check can be circumvented using upper case. Content editing permissions for RichText content is required to exploit this vulnerability, which typically means Editor role or higher. The fix implements an allowlist instead, which allows only approved link protocols. The new check is case insensitive.

Patches

  • See "Patched versions".
  • https://github.com/ibexa/fieldtype-richtext/commit/59e9c1a9da60597f60cf7338bf289dccaa7e27ca (and follow-up https://github.com/ibexa/fieldtype-richtext/commit/0a3b830e8806d5169f697351fdc48ffd95a25c67)

Workarounds

None.

References

  • Same issue in v3.3: https://github.com/ezsystems/ezplatform-richtext/security/advisories/GHSA-rhm7-7469-rcpw
  • Ibexa advisory: https://developers.ibexa.co/security-advisories/ibexa-sa-2024-005-persistent-xss-in-richtext

Credit

This vulnerability was discovered and reported to Ibexa by Alec Romano: https://github.com/4rdr We thank them for reporting it responsibly to us.

How to report security issues: https://doc.ibexa.co/en/latest/infrastructure_and_maintenance/security/reporting_issues/

Severity ?
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "ibexa/fieldtype-richtext"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.6.0"
            },
            {
              "fixed": "4.6.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-43369"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-08-14T18:08:19Z",
    "nvd_published_at": "2024-08-16T02:15:16Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nThe validator for the RichText fieldtype blocklists `javascript:` and `vbscript:` in links to prevent XSS. This can leave other options open, and the check can be circumvented using upper case. Content editing permissions for RichText content is required to exploit this vulnerability, which typically means Editor role or higher. The fix implements an allowlist instead, which allows only approved link protocols. The new check is case insensitive.\n\n### Patches\n- See \"Patched versions\".\n- https://github.com/ibexa/fieldtype-richtext/commit/59e9c1a9da60597f60cf7338bf289dccaa7e27ca (and follow-up https://github.com/ibexa/fieldtype-richtext/commit/0a3b830e8806d5169f697351fdc48ffd95a25c67)\n\n### Workarounds\nNone.\n\n### References\n- Same issue in v3.3: https://github.com/ezsystems/ezplatform-richtext/security/advisories/GHSA-rhm7-7469-rcpw\n- Ibexa advisory: https://developers.ibexa.co/security-advisories/ibexa-sa-2024-005-persistent-xss-in-richtext\n\n### Credit\nThis vulnerability was discovered and reported to Ibexa by Alec Romano: https://github.com/4rdr\nWe thank them for reporting it responsibly to us.\n\nHow to report security issues:\nhttps://doc.ibexa.co/en/latest/infrastructure_and_maintenance/security/reporting_issues/",
  "id": "GHSA-hvcf-6324-cjh7",
  "modified": "2024-08-16T18:15:38Z",
  "published": "2024-08-14T18:08:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ezsystems/ezplatform-richtext/security/advisories/GHSA-rhm7-7469-rcpw"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ibexa/fieldtype-richtext/security/advisories/GHSA-hvcf-6324-cjh7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43369"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ibexa/fieldtype-richtext/commit/0a3b830e8806d5169f697351fdc48ffd95a25c67"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ibexa/fieldtype-richtext/commit/59e9c1a9da60597f60cf7338bf289dccaa7e27ca"
    },
    {
      "type": "WEB",
      "url": "https://developers.ibexa.co/security-advisories/ibexa-sa-2024-005-persistent-xss-in-richtext"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ibexa/fieldtype-richtext"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Persistent Cross-site Scripting in Ibexa RichText Field Type"
}


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Sightings

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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.