// For flags

CVE-2023-0657

Keycloak: impersonation via logout token exchange

Severity Score

3.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

A flaw was found in Keycloak. This issue occurs due to improperly enforcing token types when validating signatures locally. This could allow an authenticated attacker to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Adjacent
Attack Complexity
High
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-02-02 CVE Reserved
  • 2024-04-17 CVE Published
  • 2024-11-17 CVE Updated
  • 2024-11-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-273: Improper Check for Dropped Privileges
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redhat
Search vendor "Redhat"
 Build Keycloak
Search vendor "Redhat" for product "Build Keycloak"
*-
Affected
Redhat
Search vendor "Redhat"
 Build Of Keycloak
Search vendor "Redhat" for product "Build Of Keycloak"
*-
Affected
Redhat
Search vendor "Redhat"
 Red Hat Single Sign On
Search vendor "Redhat" for product "Red Hat Single Sign On"
*-
Affected