A common vulnerability in web clients is cross-site request forgery, which lets an attacker impersonate a user when accessing a system. To protect against this vulnerability, calls to the Qlik Sense Repository Service (QRS) API must include the following:
- Xrfkey parameter: Must equal 16 arbitrary characters. The characters can be changed between calls to the API.
- x-Qlik-Xrfkey: Custom HTTP header. The format is as follows:
x-Qlik-Xrfkey: <The same 16 characters as used for the Xrfkey parameter>
Information noteThe only characters that are allowed for use in the Xrfkey parameter are 0 - 9, a - z, and A - Z.
Example:
The following API call returns all server node configurations in the repository database:
https://localhost:4242/qrs/servernodeconfiguration/full?Xrfkey= abcdefghijklmnop HTTP/1.1 Accept-Encoding: gzip,deflate X-Qlik-User: UserDirectory=INTERNAL; UserId=sa_repository Accept-Charset: utf-8; q=0.9, us-ascii;q=0.1, iso-8859-1 Accept: text/xml; q=0.1, application/json; q=0.2 X-Qlik-Xrfkey: abcdefghijklmnop Host: localhost:4242 Connection: Keep-Alive User-Agent: Apache-HttpClient/4.1.1 (java 1.5)