Re: Can't convert nil to String

["Ricardo F. Teixeira" <ricardo.teixas () gmail com>]

Joshua,

At least in Mac OS X to install rjb you need to set the JAVA_HOME variable.
Without that it will complain, so that was not the error :) But has you say
it has been fixed in r8288 :)

msf > use exploit/multi/browser/java_signed_applet
msf exploit(java_signed_applet) >

-- 
Ricardo F. Teixeira

uid:  0x5BBD1456

On Thu, Jan 28, 2010 at 8:15 AM, Joshua J. Drake <jdrake () metasploit com>wrote:

> On Thu, Jan 28, 2010 at 01:49:24AM -0600, Joshua J. Drake wrote:
> > On Thu, Jan 28, 2010 at 01:20:20AM +0000, Ricardo F. Teixeira wrote:
> > > I get this error after installing rjb and run java_signed_applet.
> > > Maybe uninitialized variable or a null pointer dereference.
> > >
> > > msf > version
> > > Framework: 3.3.4-dev.8284
> > > Console  : 3.3.4-dev.8065
> > >
> > > msf > use exploit/multi/browser/java_signed_applet
> > > [-] Error while running command use: can't convert nil into String
> > >
> > > Call stack:
> > > /opt/local/msf/lib/msf/core/exploit/java.rb:45:in `join'
> > > /opt/local/msf/lib/msf/core/exploit/java.rb:45:in `init_jvm'
> > > /opt/local/msf/lib/msf/core/exploit/java.rb:33:in `initialize'
> > > (eval):97:in `initialize'
> > > /opt/local/msf/lib/msf/core/module_manager.rb:91:in `new'
> > > /opt/local/msf/lib/msf/core/module_manager.rb:91:in `create'
> > > /opt/local/msf/lib/msf/core/module_manager.rb:366:in `create'
> > > /opt/local/msf/lib/msf/ui/console/command_dispatcher/core.rb:1619:in
> > > `cmd_use'
> > > /opt/local/msf/lib/rex/ui/text/dispatcher_shell.rb:239:in `send'
> > > /opt/local/msf/lib/rex/ui/text/dispatcher_shell.rb:239:in `run_command'
> > > /opt/local/msf/lib/rex/ui/text/dispatcher_shell.rb:201:in `run_single'
> > > /opt/local/msf/lib/rex/ui/text/dispatcher_shell.rb:195:in `each'
> > > /opt/local/msf/lib/rex/ui/text/dispatcher_shell.rb:195:in `run_single'
> > > /opt/local/msf/lib/rex/ui/text/shell.rb:144:in `run'
> > > /opt/local/msf/msfconsole:92
> > > msf >
> >
> > Ricardo,
> >
> > This is fixed in r8288.
>
> After a closer look, it looks like you might not have had JAVA_HOME
> set properly in your environment before running msf..
>
> I added an additional check in r8289 so that the error message makes
> more sense.
>
> --
> Joshua J. Drake
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