Authentication bypass in Apache ActiveMQ and ActiveMQ Artemis



Published: 2021-01-28
Risk High
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2021-26117
CWE ID CWE-287
Exploitation vector Network
Public exploit N/A
Vulnerable software
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ActiveMQ
Server applications / Mail servers

ActiveMQ Artemis
Server applications / Other server solutions

Vendor Apache Foundation

Security Advisory

This security advisory describes one high risk vulnerability.

1) Improper Authentication

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-26117

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to a logic error in ActiveMQ LDAP login module when configured to to use anonymous access to the LDAP server. A remote attacker can provide a valid username and no password and gain unauthorized access to the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ActiveMQ: 5.15.0, 5.15.1, 5.15.2, 5.15.3, 5.15.4, 5.15.5, 5.15.6, 5.15.7, 5.15.8, 5.15.9, 5.15.10, 5.15.11, 5.15.12, 5.15.13, 5.16.0

ActiveMQ Artemis: 1.0.0, 1.1.0, 1.2.0, 1.3.0, 1.4.0, 1.5.0, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5, 1.5.6, 2.0.0, 2.1.0, 2.2.0, 2.3.0, 2.4.0, 2.5.0, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.7.0, 2.8.0, 2.8.1, 2.9.0, 2.10.0, 2.10.1, 2.11.0, 2.12.0, 2.13.0, 2.14.0, 2.15.0

CPE External links

https://mail-archives.apache.org/mod_mbox/activemq-users/202101.mbox/%3cCAH+vQmMeUEiKN4wYX9nLBbqmFZFPXqajNvBKmzb2V8QZANcSTA@mail.gmail.com%3e
https://issues.apache.org/jira/browse/AMQ-8035
https://issues.apache.org/jira/browse/ARTEMIS-2895

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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