#VU77767 Authentication Bypass by Spoofing in Keycloak - CVE-2023-2585

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Main Vulnerability Database Vulnerabilities #VU77767

#VU77767 Authentication Bypass by Spoofing in Keycloak - CVE-2023-2585

Published: June 28, 2023


Vulnerability identifier: #VU77767
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-2585
CWE-ID: CWE-290
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Keycloak
Software vendor:
Keycloak

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error within the Keycloak Device Authorisation Grant. A remote attacker can spoof parts of the device flow and use a device_code to retrieve an access token for other OAuth clients.


Remediation

Install updates from vendor's website.

External links