Vulnerability identifier: #VU16029

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-14657

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

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

Vendor: Keycloak

Description
The vulnerability allows remote attacker to perform brute-force attack on the target system.

The vulnerability exists due to improper implementation of the Brute Force detection algorithm doesn't enforce its protection measures when TOPT enabled. A remote attacker can perform a brute force attack, bypass authentication and gain access to device functions.

Successful exploitation of this vulnerability may result in unauthorized access to the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Keycloak: 4.2.1 - 4.3.0

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14657

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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.