#VU65130 Improper Authorization in Keycloak - CVE-2022-1466

Vulnerability identifier: #VU65130

Vulnerability risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-1466

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

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

Vendor: Keycloak

Description

The vulnerability allows a remote user to modify files on the system.

The vulnerability exists due to improper authorization. A remote user can add users to the master realm possible even though no respective permission was granted.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Keycloak: 17.0.0

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External links
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-076.txt
https://www.syss.de/pentest-blog/fehlerhafte-autorisierung-bei-red-hat-single-sign-on-750ga-syss-2021-076
https://bugzilla.redhat.com/show_bug.cgi?id=2050228

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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