full-disclosure - ZDI-06-037: America Online ICQ ActiveX Control Code Execution Vulnerability

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Date: Mon, 6 Nov 2006 10:08:01 -0800
From: zdi-disclosures@...m.com
To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Cc: zdi-disclosures@...m.com
Subject: ZDI-06-037: America Online ICQ ActiveX Control
	Code Execution Vulnerability

ZDI-06-037: America Online ICQ ActiveX Control Code Execution
            Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-06-037.html
November  6, 2006

-- CVE ID:
CVE-2006-5650

-- Affected Vendor:
America Online

-- Affected Products:
America Online ICQ 5.1

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since October 31, 2006 by Digital Vaccine protection
filter ID 4725. For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

-- Vulnerability Details:
This vulnerability allows attackers to execute arbitrary code on
vulnerable installations of AOL ICQ. User interaction is not required
to exploit this vulnerability.

The specific flaw exists in the DownloadAgent function of the
ICQPhone.SipxPhoneManager ActiveX control with the following CLSID:

    54BDE6EC-F42F-4500-AC46-905177444300

The vulnerable function takes a single URI argument of a file to
download and execute under the context of the running user. A malicious
ICQ avatar can be used as an exploitation vector, allowing attackers to
exploit this vulnerability by simply messaging a target ICQ user.

-- Vendor Response:
AOL has issued an update to correct this vulnerability on 10/31/2006.
The update is automatically applied once connected to the ICQ service.

-- Disclosure Timeline:
2006.09.20 - Vulnerability reported to vendor
2006.10.31 - Digital Vaccine released to TippingPoint customers
2006.11.06 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by Peter Vreugdenhil.

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, 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.
3Com does not re-sell the vulnerability details or any exploit code.
Instead, upon notifying the affected product vendor, 3Com 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, 3Com provides this vulnerability
information confidentially to security vendors (including competitors)
who have a vulnerability protection or mitigation product.

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