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Posted to solr-user@lucene.apache.org by Jan Høydahl <ja...@apache.org> on 2017/02/15 22:57:13 UTC

[SECURITY] CVE-2017-3163 Apache Solr ReplicationHandler path traversal attack

CVE-2017-3163: Apache Solr ReplicationHandler path traversal attack

Severity: Moderate

Vendor:
The Apache Software Foundation

Versions Affected:
Solr 1.4 to 6.4.0

Description:
When using the Index Replication feature, Solr nodes can pull index files from
a master/leader node using an HTTP API which accepts a file name. However,
Solr did not validate the file name, hence it was possible to craft a special
request involving path traversal, leaving any file readable to the Solr server
process exposed. Solr servers protected and restricted by firewall rules
and/or authentication would not be at risk since only trusted clients and users
would gain direct HTTP access.

Mitigation:
6.x users should upgrade to 6.4.1
5.x users should upgrade to 5.5.4
4.x, 3.x and 1.4 users should upgrade to a supported version of Solr
or setup proper firewalling, or disable the ReplicationHandler if not in use.

Credit:
This issue was discovered by Hrishikesh Gadre of Cloudera Inc.

References:
https://issues.apache.org/jira/browse/SOLR-10031
https://wiki.apache.org/solr/SolrSecurity

The Lucene PMC