Upgrade Apache Solr version to 7.7.0 or later in Ambari

CVE-2017-3164 SSRF issue in Apache Solr

Severity: High

Vendor: The Apache Software Foundation

Versions Affected:
Apache Solr versions from 1.3 to 7.6.0

Description:
The "shards" parameter does not have a corresponding whitelist mechanism,
so it can request any URL.

Mitigation:
Upgrade to Apache Solr 7.7.0 or later.
Ensure your network settings are configured so that only trusted traffic is
allowed to ingress/egress your hosts running Solr.

Credit:
dk from Chaitin Tech

References:
https://issues.apache.org/jira/browse/SOLR-12770
https://wiki.apache.org/solr/SolrSecurity