Message-ID: <EE499D69B3D0714590B6FE9762B0461104BE5573BA@emb01.unity.local>
Date: Fri, 15 Oct 2010 15:16:04 -0500
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'Full Disclosure (full-disclosure@...ts.grok.org.uk)'"
	<full-disclosure@...ts.grok.org.uk>,
	"'Bugtraq (bugtraq@...urityfocus.com)'" <bugtraq@...urityfocus.com>
Subject: ZDI-10-211: RealNetworks Realplayer RecordClip
 Parameter Injection Remote Code Execution Vulnerability

ZDI-10-211: RealNetworks Realplayer RecordClip Parameter Injection Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-211
October 15, 2010

-- CVE ID:
CVE-2010-3749

-- 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 10057.
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.

The specific flaw exists within the browser plugins provided by
RealNetworks. The RecordClip method can be access via the ActiveX
control or the Firefox plugin. By injecting a specific character into
the arguments to this method, invalid parameters can be passed to a
child process that is launched on the local system. This parameter
injection allows an attacker to download and subsequently execute a file
on a target system, thus allowing for remote code execution.

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

http://service.real.com/realplayer/security/10152010_player/en/

-- Disclosure Timeline:
2010-01-06 - Vulnerability reported to vendor
2010-10-15 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Sean de Regge

-- 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/

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