Vulnerability-Lookup

GSD-2021-3424

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.

Aliases

CVE-2021-3424

Aliases

CVE-2021-3424

JSON

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{
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    "alias": "CVE-2021-3424",
    "description": "A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.",
    "id": "GSD-2021-3424",
    "references": [
      "https://access.redhat.com/errata/RHSA-2021:2070",
      "https://access.redhat.com/errata/RHSA-2021:2065",
      "https://access.redhat.com/errata/RHSA-2021:2064",
      "https://access.redhat.com/errata/RHSA-2021:2063",
      "https://security.archlinux.org/CVE-2021-3424"
    ]
  },
  "gsd": {
    "metadata": {
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      "remediation": "unknown",
      "reportConfidence": "confirmed",
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          "package_slug": "maven/org.keycloak/keycloak-services",
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          "solution": "Upgrade to version 18.0.0 or above.",
          "title": "Keycloak is vulnerable to IDN homograph attack",
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          "impactScore": 2.9,
          "obtainAllPrivilege": false,
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          "userInteractionRequired": false
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
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          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-04-25T19:49Z",
      "publishedDate": "2021-06-01T19:15Z"
    }
  }
}

CVE-2021-3424 (GCVE-0-2021-3424)

Vulnerability from cvelistv5 – Published: 2021-06-01 18:43 – Updated: 2024-08-03 16:53

Summary

Severity

No CVSS data available.

CWE

CWE-287

Assigner

redhat redhat root

References

1 reference

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1933320	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	keycloak	Affected: as shipped in Red Hat Single Sign-On 7.4

Show details on NVD website

JSON

To clipboard

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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.