Vulnerability identifier: #VU27522

Vulnerability risk: Low

CVSSv3.1: 3.6 [CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-10686

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 bypass authorization checks.

The vulnerability exists due to improper authorization checks where a malicious user registers as oneself. A remote administrator can use the remove devices form to post different credential IDs and possibly remove MFA devices for other users.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Keycloak: 8.0.2 - 9.0.0

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10686
http://github.com/keycloak/keycloak/commit/5ddd605ee96b8551c7eb00b609a0b97939925b77

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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.