bugtraq - ZDI-11-123: Microsoft PowerPoint TimeCommandBehaviorContainer Remote Code Execution Vulnerability

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Message-ID: <AF6E290B52139041BD6CA591212E455B5760A0B0CA@GVW0442EXB.americas.hpqcorp.net>
Date: Tue, 12 Apr 2011 20:51:40 +0000
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>,
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-11-123: Microsoft PowerPoint TimeCommandBehaviorContainer
 Remote Code Execution Vulnerability

ZDI-11-123: Microsoft PowerPoint TimeCommandBehaviorContainer Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-123

April 12, 2011

-- CVE ID:
CVE-2011-0655

-- CVSS:
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)

-- Affected Vendors:
Microsoft

-- Affected Products:
Microsoft Office PowerPoint

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10822. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Microsoft Office PowerPoint. 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 ppcore.dll module responsible for
parsing PowerPoint (ppt) files. When parsing a malformed
TimeCommandBehaviorContainer structure the process raises an exception
that causes an object in memory to be freed prior to being fully parsed.
Due to the lack of a check that this object has been freed, a later
function references an invalid pointer element. This can be leveraged by
a remote attacker to execute arbitrary code under the context of the
user running PowerPoint.

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

http://www.microsoft.com/technet/security/Bulletin/MS11-022.mspx

-- Disclosure Timeline:
2010-09-24 - Vulnerability reported to vendor
2011-04-12 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Anonymous

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