ZDI-11-014: Red Hat OpenJDK IcedTea6 ClassLoader Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-014

January 18, 2011

-- CVE ID:
CVE-2010-4351

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

-- Affected Vendors:
Red Hat

-- Affected Products:
Red Hat OpenJDK IcedTea

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10778.
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 Java OpenJDK. User interaction is required
to exploit this vulnerability in that the target must visit a malicious
page or open a malicious file.

The flaw exists within the IcedTea.so component. When handling the an
applet the process fails to properly restrict permission of code. It is
possible to create and instantiate subclasses of ClassLoader. A remote
attacker can exploit this vulnerability to execute arbitrary code under
the context of the browser.

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

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4351

-- Disclosure Timeline:
2010-12-21 - Vulnerability reported to vendor
2011-01-18 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Anonymous

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