|Bugzilla:||852051: CVE-2012-4681 OpenJDK: beans insufficient permission checks, Java 7 0day (beans, 7162473)|
The MITRE CVE dictionary describes this issue as:
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.
This flaw allowed an attacker to circumvent all restrictions applied by the Java security manager. The Java security manager is used to sandbox Java applets in web browsers, but is also used in a variety of other applications.
Red Hat has tested the flaw and confirmed that it affected Java SE 7 provided by OpenJDK 7 (java-1.7.0-openjdk), Oracle Java SE 7 (java-1.7.0-oracle) and IBM Java SE 7 (java-1.7.0-ibm) as shipped with Red Hat Enterprise Linux 6. Updates correcting this issue were released for all affected packages.
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Red Hat security errata
|Red Hat Enterprise Linux Supplementary version 6 (java-1.7.0-ibm)||RHSA-2012:1289||September 18, 2012|
|Red Hat Enterprise Linux Supplementary version 6 (java-1.7.0-oracle)||RHSA-2012:1225||September 04, 2012|
|Red Hat Enterprise Linux version 6 (java-1.7.0-openjdk)||RHSA-2012:1223||September 03, 2012|
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