CVE-2023-48228

CVSS 3.1 Score 7.5 of 10 (high)

Details

Published Nov 21, 2023
Updated: Nov 29, 2023
CWE ID 287

Summary

CVE-2023-48228 is a high-severity vulnerability categorized as CWE-287 (Improper Authentication). It affects the authentik open-source identity provider prior to versions 2023.10.4 and 2023.8.5. This vulnerability occurs during the initialization of an oauth2 flow with a `code_challenge` and `code_method` when requesting PKCE. The issue arises when authentik fails to check if there is a matching and existing `code_verifier` during the token step, allowing it to accept token requests without the `code_verifier`. The potential danger of this vulnerability lies in the fact that an attacker could bypass authentication mechanisms and gain unauthorized access to systems or sensitive information. To remediate this issue, organizations are advised to update to authentik versions 2023.10.4 or 2023.8.5, which have fixed this vulnerability.

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