Security features bypass in authentik - CVE-2023-48228
Published: November 24, 2023
Vulnerability identifier: #VU83471
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-48228
CWE-ID: CWE-254
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient PKCE check. A remote attacker can gain access to the target application.
Affected software
authentik
How to mitigate CVE-2023-48228
Install updates from vendor's website.
authentik - addressed in versions 2023.8.5, 2023.10.4
External References
- https://github.com/goauthentik/authentik/security/advisories/GHSA-fm34-v8xq-f2c3
- 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/commit/3af77ab3821fe9c7df8055ba5eade3d1ecea03a6
- https://github.com/goauthentik/authentik/commit/6b9afed21f7c39f171a4a445654cfe415bba37d5
- https://github.com/goauthentik/authentik/commit/b88e39411c12e3f9e04125a7887f12354f760a14
- https://github.com/goauthentik/authentik/blob/dd4e9030b4e667d3720be2feda24c08972602274/authentik/providers/oauth2/views/token.py#L225
- https://github.com/goauthentik/authentik/releases/tag/version%2F2023.10.4
- https://github.com/goauthentik/authentik/releases/tag/version%2F2023.8.5