GSD-2021-3754

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
A flaw was found in keycloak where an attacker is able to register himself with the username same as the email ID of any existing user. This may cause trouble in getting password recovery email in case the user forgets the password.
Aliases
Aliases
CVE-2021-3754
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{
  "GSD": {
    "alias": "CVE-2021-3754",
    "description": "A flaw was found in keycloak where an attacker is able to register himself with the username same as the email ID of any existing user. This may cause trouble in getting password recovery email in case the user forgets the password.",
    "id": "GSD-2021-3754"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-3754"
      ],
      "details": "A flaw was found in keycloak where an attacker is able to register himself with the username same as the email ID of any existing user. This may cause trouble in getting password recovery email in case the user forgets the password.",
      "id": "GSD-2021-3754",
      "modified": "2023-12-13T01:23:35.316687Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2021-3754",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "keycloak",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "Not-Known"
                        }
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            }
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-20",
                "lang": "eng",
                "value": "CWE-20 - Improper Input Validation"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1999196",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1999196"
          },
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            "url": "https://access.redhat.com/security/cve/CVE-2021-3754"
          }
        ]
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "(,19.0.1]",
          "affected_versions": "All versions up to 19.0.1",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2022-09-16",
          "description": "A flaw was found in keycloak where an attacker is able to register himself with the username same as the email ID of any existing user. This may cause trouble in getting password recovery email in case the user forgets the password.",
          "fixed_versions": [],
          "identifier": "CVE-2021-3754",
          "identifiers": [
            "GHSA-j9xq-j329-2xvg",
            "CVE-2021-3754"
          ],
          "not_impacted": "",
          "package_slug": "maven/org.keycloak/keycloak-core",
          "pubdate": "2022-08-27",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Keycloak user may register themselves with same email ID of any existing user",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-3754",
            "https://access.redhat.com/security/cve/CVE-2021-3754",
            "https://bugzilla.redhat.com/show_bug.cgi?id=1999196",
            "https://github.com/advisories/GHSA-j9xq-j329-2xvg"
          ],
          "uuid": "83c3f709-ff94-4d07-9a4e-debf200c97fa"
        }
      ]
    },
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                "cpe23Uri": "cpe:2.3:a:redhat:keycloak:-:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
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            "operator": "OR"
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        ]
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      "cve": {
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          "ID": "CVE-2021-3754"
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        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "A flaw was found in keycloak where an attacker is able to register himself with the username same as the email ID of any existing user. This may cause trouble in getting password recovery email in case the user forgets the password."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
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                  "value": "NVD-CWE-noinfo"
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        "references": {
          "reference_data": [
            {
              "name": "https://access.redhat.com/security/cve/CVE-2021-3754",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
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              "url": "https://access.redhat.com/security/cve/CVE-2021-3754"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1999196",
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              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1999196"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-09-01T16:00Z",
      "publishedDate": "2022-08-26T16:15Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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