full-disclosure - ZDI-11-269: RealNetworks RealPlayer Cross-Zone Scripting Remote Code Execution Vulnerability

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Message-ID: <AF6E290B52139041BD6CA591212E455B5767ACF4A0@GVW0442EXB.americas.hpqcorp.net>
Date: Tue, 16 Aug 2011 23:12:00 +0100
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-11-269: RealNetworks RealPlayer Cross-Zone
 Scripting Remote Code Execution Vulnerability

ZDI-11-269: RealNetworks RealPlayer Cross-Zone Scripting Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-269

August 16, 2011

-- CVE ID:
CVE-2011-2947

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

-- Affected Vendors:
RealNetworks

-- Affected Products:
RealNetworks RealPlayer

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10589. 
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 RealNetworks RealPlayer. 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 due to the fact that RealPlayer allows users to
run local HTML files with scripting enabled without any warning. The
RealPlayer ActiveX control can be scripted from a web browser to load
local HTML files. This can lead to remote code execution under the
context of the current user.

-- Vendor Response:
RealNetworks has issued an update to correct this vulnerability. More
details can be found at:
http://service.real.com/realplayer/security/08162011_player/en/

-- Disclosure Timeline:
2011-04-01 - Vulnerability reported to vendor
2011-08-16 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Martin Bartek

-- 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:
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