TippingPoint Zero Day Initiative
 

Microsoft Office Excel Art Data Memory Corruption Remote Code Execution Vulnerability

ZDI-16-508: September 16th, 2016

CVE ID

CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 24886. For further product information on the TippingPoint IPS:

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Office Excel. 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 processing of art data within a spreadsheet. The issue lies in the failure to properly validate user-supplied data which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process.

Vendor Response

Microsoft has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2016-06-06 - Vulnerability reported to vendor
    2016-09-16 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Steven Seeley of Source Incite