A vulnerability in the way that Microsoft Outlook handles a certain type of hyperlink could allow a remote attacker to execute arbitrary code on the vulnerable system.
Microsoft Outlook provides a centralized application for managing and organizing e-mail messages, schedules, tasks, notes, contacts, and other information. Outlook is included as a component of newer versions of Microsoft Office and available as a stand-alone product.
Outlook exposes a vulnerability due to inadequate checking of parameters passed to the Outlook email client. The vulnerability is caused due to the manner in which Outlook interprest a mailto: URI. By creating a specially formatted mailto: URI, an attacker may be able to alter the way that Outlook is invoked in order to allow code execution. The malicious code could be delivered to the victim via a specially-crafted HTML email message or from a webpage controlled by the attacker.
Successful exploitation of this vulnerability could allow a remote, unauthenticated attacker to execute arbitrary code. Upon successful exploitation, the malicious code would be executed in the context of the "Local Machine" under the user running Outlook.
Microsoft acknowledges Greg MacManus of iDefense Labs for reporting this vulnerability.
This document was written by Joseph W. Pruszynski.
|Date First Published:||2008-03-11|
|Date Last Updated:||2008-04-01 19:34 UTC|