CVE-2018-11802 : Vulnerability Insights and Analysis
Learn about CVE-2018-11802, an Apache Solr vulnerability allowing unauthorized access to collections before version 7.7. Find mitigation steps and best practices for securing Apache Solr.
Apache Solr allows for partitioning the cluster into multiple collections, with only a select group of nodes hosting each collection. In the event that a node receives a request for a collection that it does not host, it will forward the request to the appropriate node and handle the response. It is important to note that Solr does not apply any authorization settings for such requests, impacting all versions of Solr prior to 7.7 that utilize the default authorization mechanism (RuleBasedAuthorizationPlugin).
Understanding CVE-2018-11802
Apache Solr vulnerability allowing an authorization bypass.
What is CVE-2018-11802?
CVE-2018-11802 is an authorization bypass vulnerability in Apache Solr versions before 7.7, where nodes forward requests for collections they do not host without proper authorization.
The Impact of CVE-2018-11802
This vulnerability allows unauthorized access to collections in Apache Solr, potentially leading to data exposure and manipulation.
Technical Details of CVE-2018-11802
Apache Solr vulnerability details.
Vulnerability Description
- Apache Solr clusters can be partitioned into multiple collections with specific nodes hosting each collection.
- Nodes forwarding requests for collections they do not host bypass authorization settings.
Affected Systems and Versions
- Product: Apache Solr
- Vendor: Apache
- Versions Affected: Before 7.7
Exploitation Mechanism
- Nodes forwarding requests for collections they do not host without proper authorization.
Mitigation and Prevention
Protecting systems from CVE-2018-11802.
Immediate Steps to Take
- Upgrade Apache Solr to version 7.7 or later to mitigate the vulnerability.
- Implement proper authorization mechanisms to control access to collections.
Long-Term Security Practices
- Regularly monitor and audit access to Apache Solr collections.
- Stay informed about security updates and best practices for Apache Solr.
Patching and Updates
- Apply security patches promptly to address known vulnerabilities in Apache Solr.