module

Java Applet Reflection Type Confusion Remote Code Execution

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Disclosed
2013-01-10
Created
2018-05-30

Description

This module abuses Java Reflection to generate a Type Confusion, due to a weak
access control when setting final fields on static classes, and run code outside of
the Java Sandbox. The vulnerability affects Java version 7u17 and earlier. This
exploit bypasses click-to-play throw a specially crafted JNLP file. This bypass is
applied mainly to IE, when Java Web Start can be launched automatically throw the
ActiveX control. Otherwise the applet is launched without click-to-play bypass.

Authors

Jeroen Frijters
juan vazquez juan.vazquez@metasploit.com

Platform

Java,Linux,OSX,Windows

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands ‘show options’ or ‘show advanced’:


    msf > use exploit/multi/browser/java_jre17_reflection_types
    msf exploit(java_jre17_reflection_types) > show targets
        ...targets...
    msf exploit(java_jre17_reflection_types) > set TARGET < target-id >
    msf exploit(java_jre17_reflection_types) > show options
        ...show and set options...
    msf exploit(java_jre17_reflection_types) > exploit
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