#VU46680 Improper Authentication in ActiveMQ - CVE-2020-11998
Published: September 14, 2020
Vulnerability identifier: #VU46680
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-11998
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
ActiveMQ
ActiveMQ
Software vendor:
Apache Foundation
Apache Foundation
Description
The vulnerability allows a remote client to bypass authentication process.
The vulnerability exists due to an error in authentication process, caused by incorrect implementation of protection measures against JMX re-bind attack. A remote attacker can bypass authentication process by passing an empty environment map to RMIConnectorServer, instead of the map that contains the authentication credentials.As a result, a remote client can create javax.management.loading.MLet MBean and use it to create new MBeans from arbitrary URLs.
Successful exploitation of the vulnerability may allow an attacker to execute arbitrary code on the target system.
Remediation
Install updates from vendor's website.