bugtraq - ZDI-10-016: Microsoft Windows ShellExecute Improper Sanitization Code Execution Vulnerability

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Message-ID: <EE499D69B3D0714590B6FE9762B04611038814575F@emb01.unity.local>
Date: Tue, 9 Feb 2010 14:00:37 -0600
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-10-016: Microsoft Windows ShellExecute Improper Sanitization
 Code Execution Vulnerability

ZDI-10-016: Microsoft Windows ShellExecute Improper Sanitization Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-016
February 9, 2010

-- CVE ID:
CVE-2010-0027

-- Affected Vendors:
Microsoft

-- Affected Products:
Microsoft Windows XP

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9436. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to force a Microsoft Windows
system to execute a given local executable. User interaction is required
in that the target must access a malicious URL.

The specific flaw exists within the ShellExecute API. Using a specially
formatted URL an attacker can bypass sanitization checks within this
function and force the calling application into running an executable of
their choice. Successful exploitation requires a useful binary to exist
in a predictable location on the remote system.

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

http://www.microsoft.com/technet/security/bulletin/MS10-007.mspx

-- Disclosure Timeline:
2009-07-20 - Vulnerability reported to vendor
2010-02-09 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Brett Moore, Insomnia Security

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents 
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/