Description
In Firebase PHP-JWT before 6.0.0, an algorithm-confusion issue (e.g., RS256 / HS256) exists via the kid (aka Key ID) header, when multiple types of keys are loaded in a key ring. This allows an attacker to forge tokens that validate under the incorrect key. NOTE: this provides a straightforward way to use the PHP-JWT library unsafely, but might not be considered a vulnerability in the library itself.
Published: 2022-03-29
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Advisories
Source ID Title
EUVD EUVD EUVD-2022-1387 In Firebase PHP-JWT before 6.0.0, an algorithm-confusion issue (e.g., RS256 / HS256) exists via the kid (aka Key ID) header, when multiple types of keys are loaded in a key ring. This allows an attacker to forge tokens that validate under the incorrect key. NOTE: this provides a straightforward way to use the PHP-JWT library unsafely, but might not be considered a vulnerability in the library itself.
Github GHSA Github GHSA GHSA-8xf4-w7qw-pjjw Firebase PHP-JWT key/algorithm type confusion
History

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Google Firebase Php-jwt
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T05:17:41.727Z

Reserved: 2022-03-29T00:00:00.000Z

Link: CVE-2021-46743

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-03-29T07:15:07.017

Modified: 2024-11-21T06:34:37.197

Link: CVE-2021-46743

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses