Executive Summary

Informations
Name CVE-2023-48228 First vendor Publication 2023-11-21
Vendor Cve Last vendor Modification 2023-11-29

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

authentik is an open-source identity provider. When initialising a oauth2 flow with a `code_challenge` and `code_method` (thus requesting PKCE), the single sign-on provider (authentik) must check if there is a matching and existing `code_verifier` during the token step. Prior to versions 2023.10.4 and 2023.8.5, authentik checks if the contents of `code_verifier` is matching only when it is provided. When it is left out completely, authentik simply accepts the token request with out it; even when the flow was started with a `code_challenge`. authentik 2023.8.5 and 2023.10.4 fix this issue.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-48228

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-287 Improper Authentication

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

https://github.com/goauthentik/authentik/blob/dd4e9030b4e667d3720be2feda24c08...
https://github.com/goauthentik/authentik/commit/3af77ab3821fe9c7df8055ba5eade...
https://github.com/goauthentik/authentik/commit/6b9afed21f7c39f171a4a445654cf...
https://github.com/goauthentik/authentik/commit/b88e39411c12e3f9e04125a7887f1...
https://github.com/goauthentik/authentik/pull/7666
https://github.com/goauthentik/authentik/pull/7668
https://github.com/goauthentik/authentik/pull/7669
https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.4
https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.5
https://github.com/goauthentik/authentik/security/advisories/GHSA-fm34-v8xq-f2c3
Source Url

Alert History

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Date Informations
2023-12-08 13:37:52
  • Multiple Updates
2023-11-29 09:27:27
  • Multiple Updates
2023-11-22 09:27:27
  • Multiple Updates
2023-11-22 00:27:23
  • First insertion