Vulnerability from bitnami_vulndb
Published
2024-03-06 10:53
Modified
2025-04-03 14:40
Summary
Details

An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was artificially large in relation to the comparison values. In a situation where access to user registration was unrestricted, this provided a potential vector for a denial-of-service attack.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "django",
        "purl": "pkg:bitnami/django"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2.0"
            },
            {
              "fixed": "2.2.26"
            },
            {
              "introduced": "3.2.0"
            },
            {
              "fixed": "3.2.11"
            },
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.0.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-45115"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was artificially large in relation to the comparison values. In a situation where access to user registration was unrestricted, this provided a potential vector for a denial-of-service attack.",
  "id": "BIT-django-2021-45115",
  "modified": "2025-04-03T14:40:37.652Z",
  "published": "2024-03-06T10:53:58.206Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://docs.djangoproject.com/en/4.0/releases/security/"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/#%21forum/django-announce"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220121-0005/"
    },
    {
      "type": "WEB",
      "url": "https://www.djangoproject.com/weblog/2022/jan/04/security-releases/"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45115"
    }
  ],
  "schema_version": "1.5.0"
}


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