Check_MK Werk 3970: Fixed possible URL injection on index page

ID: 3970 Title: Fixed possible URL injection on index page Component: Multisite Level: 1 Class: Security Fix Version: 1.4.0i2 Till this version it was possible to inject authenticated users external URLs as start URLs for their GUI. An attacker could use this to make an authenticated GUI user open a page of his choice when the user clicks on a prepared link. One example URL which could be used: "index.py?start_url=//heise.de".