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Date: Wed, 6 Mar 2019 22:41:37 -0800
From: Tomas Fernandez Lobbe <tflobbe@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2019-0192 Deserialization of untrusted data via jmx.serviceUrl in
Apache Solr
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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