Crossdomain xml how does it work

Poor configuration of the policy files enables Cross-site Request Forgery attacks, and may allow third parties to access sensitive data meant for the user. A cross-domain policy file specifies the permissions that a web client such as Java, Adobe Flash, Adobe Reader, etc. Whenever a web client detects that a resource has to be requested from other domain, it will first look for a policy file in the target domain to determine if performing cross-domain requests, including headers, and socket-based connections are allowed.

A client may be instructed to load a different policy file but it will always check the master policy file first to ensure that the master policy file permits the requested policy file. More information on settings and examples for such XML files , can be found at the related article from Adobe.

The bottom line is, that if a player has to load content from a different origin, we have to deal with the security concept called Same-Origin Policy. But, using mechanisms like CORS and the cross-domain policy file, we already have the solution in hand. How to ensure the security of your content although cross-domain activity is allowed, is a whole different story and can be read about in our DRM section.

Follow us on Twitter: bitmovin. Sign Up. Below is the crossdomain. You can modify this to be more restrictive. To learn about how to modify this file see the Adobe cross-domain policy file specification.

Below is the clientaccesspolicy. To learn how to modify a clientaccesspolicy. Client access policy files, or the lack thereof, do not guarantee that your site is safe from all cross-site vulnerabilities. For example, applications or scripts not running in Flash Player or Silverlight could invoke your services directly through REST, regardless of the content in the client access policy files. If you want to prevent usage of your web services by certain Javascript applications hosted on other domains, you can configure ArcGIS Server to include a list of only the domains that you trust.

This reduces the possibility that an unknown application could send malicious commands to your web services.