CVE-2017-3163 : Security Advisory and Response

Apache Solr vulnerability allowing path traversal attack.

Understanding CVE-2017-3163

Apache Solr versions 1.4.0 to 5.5.3 and 6.0.0 to 6.4.0 are affected by a path traversal vulnerability.

What is CVE-2017-3163?

The Index Replication feature in Apache Solr allowed a potential path traversal attack due to lack of file name validation in versions prior to 5.5.4 and 6.4.1.

The Impact of CVE-2017-3163

Attackers could exploit this vulnerability to access any file readable by the Solr server process.
Solr servers with firewall rules and authentication measures were protected.

Technical Details of CVE-2017-3163

Vulnerability Description

Apache Solr's Index Replication feature lacked file name validation, enabling path traversal attacks.

Affected Systems and Versions

Apache Solr versions 1.4.0 to 5.5.3 and 6.0.0 to 6.4.0

Exploitation Mechanism

Attackers could manipulate requests to perform path traversal, accessing sensitive files.

Mitigation and Prevention

Immediate Steps to Take

Update Apache Solr to versions 5.5.4 or 6.4.1 to mitigate the vulnerability.
Implement firewall rules and authentication mechanisms to restrict access.

Long-Term Security Practices

Regularly monitor and update Apache Solr to the latest secure versions.
Conduct security audits to identify and address potential vulnerabilities.

Patching and Updates

Apply security patches provided by Apache Software Foundation to address CVE-2017-3163.