Zero-Day Advisory

Fortinet Discovers Intel XDK for Windows DLL Pre-Loading Vulnerability

Summary

Fortinet's FortiGuard Labs has discovered a DLL preloading vulnerability in Intel's XDK for Windows.


Intel XDK is an Integrated Development Environment (IDE) created by Intel to create native apps for mobile phones and tablets using web technologies like HTML5, CSS and JavaScript. Apps are created, edited and simulated using the IDE then exported to Adobe PhoneGap or Cordova CLI for compilation into a native code app. The IDE allows a developer to target the same solution to different platforms, thus reducing the amount of code required to ship a cross-platform product.


Intel's XDK for Windows is susceptible to a DLL preloading vulnerability. The issue occurs when the application looks to load a DLL for execution and an attacker provides a malicious DLL to use instead. The application generally follows a specific search path to locate the DLL. The vulnerability can be exploited by a simple file write (or potentially an over-write) which results in a foreign DLL running under the context of the application.


Solutions

No vendor patch is available.

Timeline

Fortinet reported the vulnerability to Intel on May 18, 2017.

Intel confirmed the vulnerability on July 19, 2018.


Acknowledgement

This vulnerability was discovered by Kushal Arvind Shah of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.