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Oracle Security Alert: Java Runtime Environment Beans vulnerability (CVE-2012-4681)

Severity CVSS Published Added Modified
10 (AV:N/AC:L/Au:N/C:C/I:C/A:C) August 27, 2012 August 31, 2012 April 22, 2013

Available Exploits 

Description

Multiple vulnerabilities in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 6 and earlier allow remote attackers to execute arbitrary code via a crafted applet that bypasses SecurityManager restrictions by (1) using com.sun.beans.finder.ClassFinder.findClass and leveraging an exception with the forName method to access restricted classes from arbitrary packages such as sun.awt.SunToolkit, then (2) using "reflection with a trusted immediate caller" to leverage the getField method to access and modify private fields, as exploited in the wild in August 2012 using Gondzz.class and Gondvv.class.

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References

Solution

Oracle JRE >= 1.7.0.0 and < 1.7.0.7

Upgrade to Oracle Java version 1.7.0.7

Upgrade your copy of the Java Runtime Environment to 1.7.0.7, which can be downloaded from here.

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