CVE-2015-1155

La implementación de historial en WebKit, utilizado en Apple Safari anterior a 6.2.6, 7.x anterior a 7.1.6, y 8.x anterior a 8.0.6, permite a atacantes remotos evadir Same Origin Policy y leer ficheros arbitrarios a través de un sitio web manipulado.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of popups to invalid pages. The issue lies in the ability to control the history of a window with higher privileges. An attacker can leverage this vulnerability to execute code outside the context of the Safari sandbox.

Versions of Safari before 8.0.6, 7.1.6, and 6.2.6 are vulnerable to a "state management issue" that allows a browser window to be navigated to a file:// URL. By dropping and loading a malicious .webarchive file, an attacker can read arbitrary files, inject cross-domain Javascript, and silently install Safari extensions.