Unprotected storage of credentials in Keycloak Core

1) Unprotected storage of credentials

EUVDB-ID: #VU80649

Risk: Low

CVSSv3.1: 2.4 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4918

CWE-ID: CWE-256 - Unprotected Storage of Credentials

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to other users' credentials.

The vulnerability exists due to application stored credentials in plain text when a user registers itself through registration flow. The "password" and "password-confirm" field from the form will occur as regular attributes in the users attributes. A remote user with ability to view attributes can gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Keycloak: 22.0.2

External links

http://github.com/keycloak/keycloak/security/advisories/GHSA-5q66-v53q-pm35

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged 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.