CVE-2020-11998: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
A regression has been introduced in the commit preventing JMX re-bind. By passing an empty environment map to RMIConnectorServer, instead of the map that contains the authentication credentials, it leaves ActiveMQ open to the following attack: https://docs.oracle.com/javase/8/docs/technotes/guides/management/agent.html “A remote client could create a javax.management.loading.MLet MBean and use it to create new MBeans from arbitrary URLs, at least if there is no security manager. In other words, a rogue remote client could make your Java application execute arbitrary code.” Mitigation: Upgrade to Apache ActiveMQ 5.15.13
References
- activemq.apache.org/security-advisories.data/CVE-2020-11998-announcement.txt
- github.com/advisories/GHSA-wqfh-9m4g-7x6x
- lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d36d7dcd7@%3Ccommits.activemq.apache.org%3E
- lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d@%3Ccommits.activemq.apache.org%3E
- nvd.nist.gov/vuln/detail/CVE-2020-11998
- www.oracle.com//security-alerts/cpujul2021.html
- www.oracle.com/security-alerts/cpuApr2021.html
- www.oracle.com/security-alerts/cpujan2021.html
- www.oracle.com/security-alerts/cpuoct2021.html
Code Behaviors & Features
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