#VU78469 Improper enforcement of behavioral workflow in Keycloak - CVE-2023-0105

Vulnerability identifier: #VU78469

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-0105

CWE-ID: CWE-841

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Keycloak
Server applications / Directory software, identity management

Vendor: Keycloak

Description

The vulnerability allows a remote attacker to lock out other users.

The vulnerability exists due to incorrect handling of email trust, caused by handling of the verified account state when changing the email address. A remote attacker can lock our or impersonate other users.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Keycloak: 20.0.0 - 22.0.0

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External links
https://access.redhat.com/security/cve/CVE-2023-0105

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.