Home / exploits Apache Struts 2 Forced Multi OGNL Evaluation
Posted on 24 December 2020
The Apache Struts framework, when forced, performs double evaluation of attribute values assigned to certain tags attributes such as id. It is therefore possible to pass in a value to Struts that will be evaluated again when a tag's attributes are rendered. With a carefully crafted request, this can lead to remote code execution. This vulnerability is application dependant. A server side template must make an affected use of request data to render an HTML tag attribute.
