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ZDI-10-139: Novell iPrint Client Browser Plugin Parameter Name Remote Code Execution
From: ZDI Disclosures <zdi-disclosures () tippingpoint com>
Date: Thu, 5 Aug 2010 16:03:13 -0500

ZDI-10-139: Novell iPrint Client Browser Plugin Parameter Name Remote Code Execution
http://www.zerodayinitiative.com/advisories/ZDI-10-139
August 5, 2010

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

-- Affected Vendors:
Novell

-- Affected Products:
Novell iPrint

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9882. 
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 the Novell iPrint Client browser plugin.
User interaction is required in that a target must visit a malicious web
page.

The specific flaw exists within handling plugin parameters. The
application does not properly verify the name of parameters passed via
<embed> tags. If a malicious attacker provides a long enough value a
destination buffer can be overflowed. Successful exploitation leads to
execution of arbitrary code under the context of the user owning the
browser process.

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

http://download.novell.com/Download?buildid=ftwZBxEFjIg~

-- Disclosure Timeline:
2010-06-02 - Vulnerability reported to vendor
2010-08-05 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Ivan Almuina

-- 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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