Vulnerability-Lookup

CVE-2023-3597 (GCVE-0-2023-3597)

Vulnerability from cvelistv5 – Published: 2024-04-25 12:20 – Updated: 2025-11-11 15:57

Title

Keycloak: secondary factor bypass in step-up authentication

Summary

A flaw was found in Keycloak, where it does not correctly validate its client step-up authentication in org.keycloak.authentication. This flaw allows a remote user authenticated with a password to register a false second authentication factor along with an existing one and bypass authentication.

Severity

5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-02 15:08 UTC

CWE

CWE-287 - Improper Authentication

Assigner

redhat redhat root

References

5 references

URL	Tags
https://access.redhat.com/errata/RHSA-2024:1866	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1867	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1868	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-3597	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2221760	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
		Affected: 0 , < 22.0.10 (semver) Affected: 23.0.0 , < 24.0.3 (semver)
Red Hat	Red Hat build of Keycloak 22	Unaffected: 22.0.10-1 , < * (rpm) cpe:/a:redhat:build_keycloak:22::el9
Red Hat	Red Hat build of Keycloak 22	Unaffected: 22-13 , < * (rpm) cpe:/a:redhat:build_keycloak:22::el9
Red Hat	Red Hat build of Keycloak 22	Unaffected: 22-16 , < * (rpm) cpe:/a:redhat:build_keycloak:22::el9
Red Hat	Red Hat build of Keycloak 22.0.10	cpe:/a:redhat:build_keycloak:22
Red Hat	RHSSO 7.6.8	cpe:/a:redhat:red_hat_single_sign_on:7.6

Date Public

2024-04-15 00:00

Credits

Red Hat would like to thank Johannes Bergmann (Bosch) for reporting this issue.

Show details on NVD website

JSON

To clipboard

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EUVD-2026-49354

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-03 10:47

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

JSON

To clipboard

{
  "assigner": "ENISA",
  "date_reserved": "2026-10-03T10:47:16.423603+00:00",
  "id": "EUVD-2026-49354"
}

FKIE_CVE-2023-3597

Vulnerability from fkie_nvd - Published: 2024-04-25 13:15 - Updated: 2026-06-17 06:14

Severity

5.0 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Summary

References

	URL	Tags
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	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2024:1867
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2024:1868
	secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2023-3597
	secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2221760
	af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/errata/RHSA-2024:1867
	af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/errata/RHSA-2024:1868
	af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/security/cve/CVE-2023-3597
	af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.redhat.com/show_bug.cgi?id=2221760

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          ],
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          "packageName": "keycloak",
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        },
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        }
      ],
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    }
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  "cveTags": [],
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    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en Keycloak, donde no valida correctamente la autenticaci\u00f3n incremental de su cliente en org.keycloak.authentication. Esta falla permite que un usuario remoto autenticado con una contrase\u00f1a registre un segundo factor de autenticaci\u00f3n falso junto con uno existente y omita la autenticaci\u00f3n."
    }
  ],
  "id": "CVE-2023-3597",
  "lastModified": "2026-06-17T06:14:26.010",
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          "attackComplexity": "HIGH",
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            }
          ],
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          "timestamp": "2024-05-02T15:08:53.952771Z",
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        }
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      ],
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      "type": "Secondary"
    }
  ]
}

GHSA-4F53-XH3V-G8X4

Vulnerability from github – Published: 2024-04-17 17:31 – Updated: 2024-08-07 12:31

Summary

Keycloak secondary factor bypass in step-up authentication

Details

Keycloak does not correctly validate its client step-up authentication. A password-authed attacker could use this flaw to register a false second auth factor, alongside the existing one, to a targeted account. The second factor then permits step-up authentication.

Severity

5.0 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-services"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "22.0.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-services"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "23.0.0"
            },
            {
              "fixed": "24.0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-3597"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-288"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-04-17T17:31:50Z",
    "nvd_published_at": "2024-04-25T13:15:50Z",
    "severity": "MODERATE"
  },
  "details": "Keycloak does not correctly validate its client step-up authentication. A password-authed attacker could use this flaw to register a false second auth factor, alongside the existing one, to a targeted account. The second factor then permits step-up authentication.",
  "id": "GHSA-4f53-xh3v-g8x4",
  "modified": "2024-08-07T12:31:28Z",
  "published": "2024-04-17T17:31:50Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/security/advisories/GHSA-4f53-xh3v-g8x4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3597"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/commit/aa634aee882892960a526e49982806e103c8a432"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:1866"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:1867"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:1868"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-3597"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2221760"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keycloak secondary factor bypass in step-up authentication"
}

GSD-2023-3597

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-3597

Aliases

CVE-2023-3597

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-3597",
    "id": "GSD-2023-3597"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      ],
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      "id": "GSD-2023-3597",
      "modified": "2023-12-13T01:20:55.289335Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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                                "versionType": "rpm"
                              }
                            ]
                          }
                        },
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          },
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            "type": "Primary"
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}

RHSA-2024:1866

Vulnerability from csaf_redhat - Published: 2024-04-16 20:04 - Updated: 2026-09-10 21:48

Summary

Red Hat Security Advisory: Red Hat Single Sign-On 7.6.8 security update

Severity

Important

Scope

6 vulnerabilities in this advisory, including CVE-2023-3597.

CVE-2023-3597

5.0 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Fixed: 1 product

https://access.redhat.com/errata/RHSA-2024:1866

Open the full advisory

RHSA-2024:1867

Vulnerability from csaf_redhat - Published: 2024-04-16 20:26 - Updated: 2026-09-11 01:11

Summary

Red Hat Security Advisory: Red Hat build of Keycloak 22.0.10 enhancement and security update

Severity

Moderate

Scope

9 vulnerabilities in this advisory, including CVE-2023-3597.

CVE-2023-3597

5.0 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Fixed: 7 products

https://access.redhat.com/errata/RHSA-2024:1867

Open the full advisory

RHSA-2024:1868

Vulnerability from csaf_redhat - Published: 2024-04-16 20:26 - Updated: 2026-09-11 01:11

Summary

Red Hat Security Advisory: Red Hat build of Keycloak security update

Severity

Important

Scope

8 vulnerabilities in this advisory, including CVE-2023-3597.

CVE-2023-3597

5.0 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Fixed: 1 product

https://access.redhat.com/errata/RHSA-2024:1868

Open the full advisory

WID-SEC-W-2024-0914

Vulnerability from csaf_certbund - Published: 2024-04-16 22:00 - Updated: 2024-12-17 23:00

Summary

Red Hat Enterprise Linux (keycloak): Mehrere Schwachstellen

Severity

Mittel

Scope

9 vulnerabilities in this advisory, including CVE-2023-3597.

CVE-2023-3597

Known affected: 5 products

Open the full advisory

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2023-3597 (GCVE-0-2023-3597)

Tags

Sightings

Nomenclature

Related by attack behaviour