Intrusion Prevention

MS.Outlook.Protected.View.Security.Bypass

Description

This indicates an attack attempt to exploit a Security Bypass vulnerability in Microsoft Outlook.
The vulnerability is due to insufficient validation of emails that are sent to the application. A remote attacker may be able to exploit this to load crafted documents via outlook attachments, possibly leading to other attacks.

Affected Products

Microsoft Outlook 2007 Service Pack 3
Microsoft Outlook 2010 Service Pack 2 (32-bit editions)
Microsoft Outlook 2010 Service Pack 2 (64-bit editions)
Microsoft Outlook 2016 (32-bit edition)
Microsoft Outlook 2016 (64-bit edition)
Microsoft Outlook 2013 Service Pack 1 (32-bit editions)
Microsoft Outlook 2013 Service Pack 1 (64-bit editions)

Impact

Security Bypass: Remote attackers can bypass security features of vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0204

CVE References

CVE-2017-0204