#VU58178 Files or Directories Accessible to External Parties in Wildfly Core - CVE-2021-3717

Vulnerability identifier: #VU58178

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-3717

CWE-ID: CWE-552

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Wildfly Core
Server applications / Application servers

Vendor: Red Hat Inc.

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to an incorrect JBOSS_LOCAL_USER challenge location. A local unprivileged user can access any user account on the affected system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Wildfly Core: 10.0.0 - 16.0.1

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=1991305

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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