CVE-2019-12409

critical

Description

The 8.1.1 and 8.2.0 releases of Apache Solr contain an insecure setting for the ENABLE_REMOTE_JMX_OPTS configuration option in the default solr.in.sh configuration file shipping with Solr. If you use the default solr.in.sh file from the affected releases, then JMX monitoring will be enabled and exposed on RMI_PORT (default=18983), without any authentication. If this port is opened for inbound traffic in your firewall, then anyone with network access to your Solr nodes will be able to access JMX, which may in turn allow them to upload malicious code for execution on the Solr server.

From the Tenable Blog

CVE-2019-12409: Default Configuration in Apache Solr Could Lead to Remote Code Execution

Published: 2019-11-19

Linux servers using Apache Solr versions 8.1.1 and 8.2.0 with default configurations are potentially vulnerable to remote code execution. Background On July 22, 2019, a configuration flaw in versions 8.1.1 and 8.2.0 was found in Apache Solr, the open-source search-engine platform. John Ryan originally reported the issue and credit was also given to Matei “Mal” Badanoiu for noting the flaw could lead to remote code execution (RCE).