GHSA-4VC8-PG5C-VG4X

Vulnerability from github – Published: 2024-06-12 19:41 – Updated: 2024-12-20 17:49
VLAI?
Summary
Keycloak's improper input validation allows using email as username
Details

Keycloak allows the use of email as a username and doesn't check that an account with this email already exists. That could lead to the unability to reset/login with email for the user. This is caused by usernames being evaluated before emails.

Severity ?
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-services"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "24.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-3754"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-670"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-06-12T19:41:05Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "Keycloak allows the use of email as a username and doesn\u0027t check that an account with this email already exists. That could lead to the unability to reset/login with email for the user. This is caused by usernames being evaluated before emails.",
  "id": "GHSA-4vc8-pg5c-vg4x",
  "modified": "2024-12-20T17:49:09Z",
  "published": "2024-06-12T19:41:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/security/advisories/GHSA-4vc8-pg5c-vg4x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3754"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/commit/f9708037383aa98741e4850447de64dc4a0d4b4e"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2021-3754"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1999196"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keycloak\u0027s improper input validation allows using email as username"
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.