Vulnerability identifier: #VU50074

Vulnerability 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-2021-26118

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ActiveMQ Artemis
Server applications / Other server solutions

Vendor: Apache Foundation

Description

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. The creation of advisory messages in the OpenWire protocol head of Apache ActiveMQ Artemis bypasses policy based access control for the entire session. A remote user can bypass implemented security restrictions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ActiveMQ Artemis: 2.0.0 - 2.15.0

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External links
http://mail-archives.apache.org/mod_mbox/activemq-users/202101.mbox/%3CCAH%2BvQmMUNnkiXv2-d3ucdErWOsdnLi6CgnK%2BVfixyJvTgTuYig%40mail.gmail.com%3E
http://issues.apache.org/jira/browse/ARTEMIS-2964

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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.