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Category:   Application (Multimedia)  >   RealOne (RealPlayer) Vendors:   RealNetworks
RealPlayer OpenURLInDefaultBrowser() Function Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1025351
SecurityTracker URL:  http://securitytracker.com/id/1025351
CVE Reference:   CVE-2011-1426   (Links to External Site)
Date:  Apr 13 2011
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 14.0.3
Description:   A vulnerability was reported in RealPlayer. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted '.rnx' file or web page that, when loaded by the target user, will invoke the OpenURLInDefaultBrowser() method and execute arbitrary code on the target system. The code will run with the privileges of the target user.

The vendor was notified on February 17, 2011.

Peter Vreugdenhil and Andrea Micalizzi aka rgod separately reported this vulnerability via TippingPoint's Zero Day Initiative.

Impact:   A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix (14.0.3).

The vendor's advisory is available at:

http://service.real.com/realplayer/security/04122011_player/en/

Vendor URL:  service.real.com/realplayer/security/04122011_player/en/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  ZDI-11-122: RealNetworks RealPlayer OpenURLInDefaultBrowser Remote Code Execution Vulnerability

ZDI-11-122: RealNetworks RealPlayer OpenURLInDefaultBrowser Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-122

April 12, 2011

-- CVE ID:
CVE-2011-1426

-- CVSS:
9.7, (AV:N/AC:L/Au:N/C:C/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 11062. 
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 within RealPlayer exposes a method called
OpenURLInDefaultBrowser() that can be accessed through RealPlayer's
internal browser. When this method is called, it will open and execute
the first parameter based on the operating system's default handler for
the filetype. An attacker can reach RealPlayer's internal browser by
utilizing a specially crafted .rnx file. This can be leveraged to
execute arbitrary code under the context of the user invoking
RealPlayer.

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

http://service.real.com/realplayer/security/04122011_player/en/

-- Disclosure Timeline:
2011-02-17 - Vulnerability reported to vendor
2011-04-12 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Peter Vreugdenhil ( http://vreugdenhilresearch.nl )
    * Andrea Micalizzi aka rgod

-- 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/

Follow the ZDI on Twitter:

    http://twitter.com/thezdi
 
 


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