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Elastic Kibana HTML Injection Vulnerability (ESA-2021-23)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Elastic Kibana is prone to an HTML injection vulnerability.
Insight
Insight
It was discovered that kibana was not sanitizing document fields containing html snippets. Using this vulnerability, an attacker with the ability to write documents to an elasticsearch index could inject HTML. When the Discover app highlighted a search term containing the HTML, it would be rendered for the user.
Affected Software
Affected Software
Elastic Kibana version 7.14.0 only.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 7.14.1 or later. Mitigation: Users can set 'doc_table:highlight' to 'false' in the Kibana Advanced Settings.