Scanning unexposed web applications for vulnerabilities
Disclosed herein are methods, systems, and processes for scanning unexposed web applications for security vulnerabilities. A web application executing on a client computing device is accessed and a determination is made that elements in a document object model (DOM) associated with the web application are completely loaded. A brute force operation is performed to identify unexposed actionable events associated with the elements in the DOM. The unexposed actionable events identified as part of performing the brute force operation are received from the client computing device, and the web application is scanned for security vulnerabilities based on the unexposed actionable events.
1. A computer-implemented method, comprising:
accessing a web application executing on a client computing device, wherein the web application loads elements of a document object model (DOM) at runtime from a virtual DOM utilized by a first web application framework;
determining, based on a DOM polling technique, that elements in the DOM are completely loaded from the virtual DOM;
selecting one or more elements and associated events from the DOM;
generating a list of elements based at least in part on a matching of the one or more elements and associated events selected with a set of common elements and associated events used by the first web application framework; and
transferring the list of elements and associated properties to a web application scanner.
2. The computer-implemented method of claim 1 , wherein
the first web application framework does not expose one or more actionable events associated with the one or more elements in the DOM of the web application due to the one or more elements being generated at runtime from the virtual DOM.
3. The computer-implemented method of claim 1 , further comprising:
retrieving a framework type of the first web application framework from the web application.
4. The computer-implemented method of claim 1 , further comprising:
generating a first extraction package that corresponds to the first web application framework; and
transmitting the first extraction package to the web application to generate the list of elements.
5. The computer-implemented method of claim 1 , further comprising:
generating a first scanning package that corresponds to the first web application framework; and
transmitting the first scanning package to the web application to scan the web application for one or more security vulnerabilities based on the list of elements.
6. The computer-implemented method of claim 5 , wherein
the first web application framework is a JavaScript framework.
7. The computer-implemented method of claim 1 , wherein
the one or more elements and associated events are selected based on respective tag names of the one or more elements and associated events in the DOM.
8. The computer-implemented method of claim 1 , wherein
the list of elements indicates respective locations of the elements in the DOM.
9. The computer-implemented method of claim 1 , further comprising:
causing the web application to execute one or more events associated with the elements in the list.
10. The computer-implemented method of claim 9 , wherein
the scanning of the web application is performed based on analyzing one or more captured network requests associated with the execution of the one or more events.
11. A system comprising:
one or more processors and associated memory that implement an application security server, the application security server configured to:
access a web application executing on a client computing device, wherein the web application loads elements of a document object model (DOM) at runtime from a virtual DOM utilized by a first web application framework;
determine, based on a DOM polling technique, that elements in the DOM are completely loaded from the virtual DOM;
select one or more elements and associated events from the DOM;
generate a list of elements by matching the one or more elements and associated events selected with a set of common elements and associated events used by the first web application framework; and
transfer the list of elements and associated properties to a web application scanner.
12. The system of claim 11 , wherein
the first web application framework does not expose one or more actionable events associated with the one or more elements in the DOM of the web application due to the one or more elements being generated at runtime from the virtual DOM.
13. The system of claim 11 , wherein the application security server is configured to:
retrieve a framework type of the first web application framework from the web application.
14. The system of claim 11 , wherein the application security server is configured to:
generate a first extraction package that corresponds to the first web application framework; and
transmit the first extraction package to the web application to generate the list of elements.
15. The system of claim 11 , wherein the application security server is configured to:
generate a first scanning package that corresponds to the first web application framework; and
transmit the first scanning package to the web application to scan the web application for one or more security vulnerabilities based on the list of elements.
16. The system of claim 11 , wherein
the one or more elements and associated events are selected based on respective tag names of the one or more elements and associated events in the DOM.
17. The system of claim 11 , wherein
the list of elements indicates respective locations of the elements in the DOM.
18. The system of claim 11 , wherein the application security server is configured to:
cause the web application to execute one or more events associated with the elements in the list.
19. The system of claim 18 , wherein
the scanning of the web application is performed based on analyzing one or more captured network requests associated with the execution of the one or more events.
20. One or more non-transitory computer readable storage media storing program instructions that when executed on one or more processors cause the one or more processors to:
access a web application executing on a client computing device, wherein the web application loads elements of a document object model (DOM) at runtime from a virtual DOM utilized by a first web application framework;
determine, based on a DOM polling technique, that elements in the DOM are completely loaded from the virtual DOM;
select one or more elements and associated events from the DOM;
generate a list of elements by matching the one or more elements and associated events selected with a set of common elements and associated events used by the first web application framework; and
transfer the list of elements and associated properties to a web application scanner.