ESB-2019.0743 - [Win][UNIX/Linux] Apache Solr: Execute arbitrary code/commands - Remote with user interaction 2019-03-08

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0743
   [CVE-2019-0192] Deserialization of untrusted data via jmx.serviceUrl
                               8 March 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Apache Solr
Publisher:         The Apache Software Foundation
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-0192  

Original Bulletin: 
   https://issues.apache.org/jira/browse/SOLR-13301

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Severity: High

Vendor: The Apache Software Foundation

Versions Affected:
5.0.0 to 5.5.5
6.0.0 to 6.6.5

Description:
ConfigAPI allows to configure Solr's JMX server via an HTTP POST request.
By pointing it to a malicious RMI server, an attacker could take advantage
of Solr's unsafe deserialization to trigger remote code execution on the
Solr side.

Mitigation:
Any of the following are enough to prevent this vulnerability:
* Upgrade to Apache Solr 7.0 or later.
* Disable the ConfigAPI if not in use, by running Solr with the system
property disable.configEdit=true
* If upgrading or disabling the Config API are not viable options, apply
patch in [1] and re-compile Solr.
* Ensure your network settings are configured so that only trusted traffic
is allowed to ingress/egress your hosts running Solr.

Credit:
Michael Stepankin

References:
[1] https://issues.apache.org/jira/browse/SOLR-13301
[2] https://wiki.apache.org/solr/SolrSecurity

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