A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users.
Published 2024-01-26 15:15:08
Updated 2024-02-06 16:09:03
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Open redirect

Products affected by CVE-2023-6291

Exploit prediction scoring system (EPSS) score for CVE-2023-6291

0.34%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 71 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-6291

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.1
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
2.8
3.7
NIST 2024-02-06
6.1
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
2.8
2.7
NIST 2024-02-03
7.1
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
2.8
3.7
Red Hat, Inc. 2024-01-26
7.1
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
N/A
N/A
RedHat-CVE-2023-6291

CWE ids for CVE-2023-6291

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: secalert@redhat.com (Secondary)
  • The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
    Assigned by:
    • nvd@nist.gov (Primary)
    • secalert@redhat.com (Secondary)

References for CVE-2023-6291

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