Improved web application auditing based on sub-application identification

摘要

A web application is more efficiently analyzed by identifying the sub-applications used to generate the various web pages available at the web application and then limiting the vulnerability assessment to just a subset of the web pages generated by each sub-application. The sub-applications can be identified by detecting similarity between the web pages, based on the user interface presentation, the inputs required or allowed, or both. For the user interface presentation, the markup language used to generate the user interface is reduced to common markup language elements by removing content, attribute values and white space and then determining the edit distances between the various pages. Small edit distance values indicate similarity and thus, likely generated by a common sub-application.