#VU54938 Improper access control in Wildfly Core - CVE-2021-3644

Vulnerability identifier: #VU54938

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-3644

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Wildfly Core
Server applications / Application servers

Vendor: Red Hat Inc.

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

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

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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.