Fortinet Discovers Microsoft IE hlink.dll Information Disclosure Vulnerability
Fortinet's FortiGuard Labs has discovered an information disclosure vulnerability in Microsoft Internet Explorer (IE).
IE is one of the most widely used web browsers. It's developed by Microsoft and included as part of the Microsoft Windows operating systems. IE uses a componentized architecture built on the Component Object Model (COM) technology. It consists of several major components, each of which is contained in a separate Dynamic-link library (DLL) and exposes a set of COM programming interfaces.
An information disclosure vulnerability exists in IE when Hyperlink Object Library improperly discloses the contents of its memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user's system.
SolutionsFortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:
Released Oct 30, 2015
Users should apply the solution provided by Microsoft.
To exploit the vulnerability, an attacker must convince a user to either click a link in an email message or open an Office file, and then click a link in the file.
This vulnerability was discovered by Kai Lu of Fortinet's FortiGuard Labs.