Security restrictins bypass in WildFly Core

1) Improper access control

EUVDB-ID: #VU54938

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3644

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote user to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions to vault expressions. A remote user with access to management interface can can access restricted vault and retrieve items stored in the vault, if a vault expression is in the form of a single attribute that contains multiple expressions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Wildfly Core: 1.0.0 - 16.0.0

External links

http://github.com/wildfly/wildfly-core/releases/tag/16.0.1.Final
http://bugzilla.redhat.com/show_bug.cgi?id=1976052

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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