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veracodeVeracode Vulnerability DatabaseVERACODE:44346
HistoryNov 22, 2023 - 6:03 a.m.

Authentication Bypass

2023-11-2206:03:58
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
8
authentik
pkce check
oauth
vulnerability
bypass
authentication

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

7.2

Confidence

Low

EPSS

0.001

Percentile

44.8%

JSON

authentik is vulnerable to authentication bypass due to an insufficient PKCE check. The vulnerability is caused by code_verifier step during the OAUTH initialisation flow. Authentik improperly accepts the token request when code_verifier is omitted, even when the flow was started with a code_challenge. An attacker can exploit this flaw to bypass the single sign-on provider, bypassing authentication.

Related

cvelist 1
osv 1
nvd 1
prion 1
cve 1
cvelist
cvelist
CVE-2023-48228 OAuth2: PKCE can be fully circumvented
2023-11-21 20:48:32
osv
osv
CVE-2023-48228
2023-11-21 21:15:08
nvd
nvd
CVE-2023-48228
2023-11-21 21:15:08
prion
prion
Design/Logic Flaw
2023-11-21 21:15:00
cve
cve
CVE-2023-48228
2023-11-21 21:15:08

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

7.2

Confidence

Low

EPSS

0.001

Percentile

44.8%

JSON
Related for VERACODE:44346
cvelist1osv1nvd1prion1cve1