The bug addressed by the Apache Solr team fixed over the summer is more dangerous than initially thought.
Apache Solr is a highly reliable, scalable and fault-tolerant, open-source search engine written in Java.
The vulnerability was reported to maintainers by a user named “
“This issue originally had the title “default
The issue affects 8.1.1 and 8.2.0 releases of Apache Solr for Linux (Windows is not affected) that contain an insecure setting for the ENABLE_REMOTE_JMX_OPTS configuration option in the default
“If you use the default
According to an analysis published by Tenable, all Solr versions from v7.7.2 to v8.3 are affected by the flaw.
“Tenable Research has confirmed that Apache Solr versions 7.7.2 through 8.3 (the most current release) are vulnerable, and we suspect older versions that include the Config API are potentially vulnerable.” reads the analysis published by Tenable.
When the flaw was reported, the Apache Solr team acknowledged
On October 30, the user “s00py” published a proof-of-concept exploit code on GitHub that leverage the issue to get remote code execution of vulnerable systems. The exploit code used the exposed 8983
The availability of the two PoC exploits forced the Solr team to publish an updated security advisory on November 15. The vulnerability received
“Make sure your effective
Experts also recommend blocking inbound traffic on JMX_PORT.
At the time of writing, experts are not aware of attacks exploiting the issue in the wild, but they pointed out that it is only a matter of time.
(SecurityAffairs – Apache Solr, hacking)