Keycloak
CVE-2023-0264
MEDIUM
Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Lifecycle Timeline
1Blast Radius
ecosystem impact- 36 maven packages depend on org.keycloak:keycloak-services (28 direct, 8 indirect)
Ecosystem-wide dependent count for version 21.0.1.
DescriptionNVD
A flaw was found in Keycloaks OpenID Connect user authentication, which may incorrectly authenticate requests. An authenticated attacker who could obtain information from a user request within the same realm could use that data to impersonate the victim and generate new session tokens. This issue could impact confidentiality, integrity, and availability.
AnalysisAI
A flaw was found in Keycloaks OpenID Connect user authentication, which may incorrectly authenticate requests. Rated medium severity (CVSS 5.0), this vulnerability is remotely exploitable. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. A flaw was found in Keycloaks OpenID Connect user authentication, which may incorrectly authenticate requests. An authenticated attacker who could obtain information from a user request within the same realm could use that data to impersonate the victim and generate new session tokens. This issue could impact confidentiality, integrity, and availability. Affected products include: Redhat Keycloak, Redhat Single Sign-On, Redhat Openshift Container Platform, Redhat Openshift Container Platform For Ibm Linuxone, Redhat Openshift Container Platform Ibm Z Systems.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.
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Same weakness CWE-287 – Improper Authentication
View allSame technique Authentication Bypass
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External POC / Exploit Code
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