Medium severity · published Aug 4, 2023
CVE-2023-0264
A flaw was found in Keycloaks OpenID Connect user authentication, which may incorrectly authenticate requests
5.0
CVSS
1.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Keycloak · Redhat
before 18.0.6 · source: NVD
OC
Openshift Container Platform · Redhat
4.9; 4.10 · source: NVD
OC
Openshift Container Platform For Ibm Linuxone · Redhat
4.9; 4.10 · source: NVD
OC
Openshift Container Platform Ibm Z Systems · Redhat
4.9; 4.10 · source: NVD
SS
Single Sign-on · Redhat
before 7.6.2; before 7.6.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-0264
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-0264
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-0264
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