Path Traversal Vulnerability in Apache Solr Index Replication

CVE-2017-3163 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

When using the Index Replication feature, Apache Solr nodes can pull index files from a master/leader node using an HTTP API which accepts a file name. However, Solr before 5.5.4 and 6.x before 6.4.1 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.

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