Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2023-0264 |
CWE-ID | CWE-288 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Keycloak Server applications / Directory software, identity management |
Vendor | Keycloak |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU72725
Risk: Medium
CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-0264
CWE-ID:
CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Exploit availability: No
DescriptionThe vulnerability allows a remote user to impersonate application users.
The vulnerability exists due to an error when handling authentication requests in the OpenID Connect user authentication. A remote authenticated user who can obtain a certain piece of info from a victim's user request from the same realm can use that data to impersonate the victim and generate new session tokens.
MitigationInstall updates from vendor's website.
Vulnerable software versionsKeycloak: 20.0.3 - 21.0.0
External linkshttp://github.com/keycloak/keycloak/security/advisories/GHSA-9g98-5mj6-f9mv
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.