An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly sanitize links presented to users. An attacker who successfully exploited this vulnerability could override the OWA interface with a fake login page and attempt to trick the user into disclosing sensitive information. To exploit the vulnerability, an attacker could send a specially crafted email message containing a malicious link to a user. The user would have to click the malicious link in order to be susceptible to the vulnerability. The security update addresses the vulnerability by correcting how Microsoft Exchange rewrites links presented within the body of emails.
With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.
– Scott Cheney, Manager of Information Security, Sierra View Medical Center