Privilege escalation in Wildfly

1) Files or Directories Accessible to External Parties

EUVDB-ID: #VU58178

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 - Files or Directories Accessible to External Parties

Exploit availability: No

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

CPE2.3

• cpe:2.3:a:red_hat:wildfly_core:10.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:wildfly_core:10.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:wildfly_core:10.0.3:*:*:*:*:*:*:*

External links

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

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.