ZDI-11-084: Oracle Java Unsigned Applet Applet2ClassLoader Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-084

February 15, 2011

-- CVE ID:
CVE-2010-4452

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

-- Affected Vendors:
Oracle

-- Affected Products:
Oracle Java Runtime

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TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 10594. 
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-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of the Java Runtime Environment. 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 the findClass method of the
sun.plugin2.applet.Applet2ClassLoader class. Due to a failure to
properly validate URLs supplied by an implicitly trusted applet, it is
possible to execute arbitrary code on Windows 32-bit and 64-bit, as well
as Linux 32-bit platforms under the context of the SYSTEM user. 

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

http://www.oracle.com/technetwork/topics/security/javacpufeb2011-304611.html

-- Disclosure Timeline:
2010-09-28 - Vulnerability reported to vendor
2011-02-15 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Frederic Hoguin

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