2013-07-06.txt:05:25:21: -!- mafingre has joined #esoteric.
2013-07-06.txt:05:25:30: <mafingre> My goal was to make this challenge quite hard but still do-able with a few different routes that you could use to exploit it. http://pastebin.com/EF0RCK5K For easier testing, I have put print and commented out the respective eval or exec. Just take away the comments on eval and exec for testing.
2013-07-06.txt:05:29:14: <mafingre> zzo38: If you run it you will see ;)
2013-07-06.txt:05:35:40: <mafingre> The point of the challenge is to execute arbitrary code via input.
2013-07-06.txt:05:36:32: <zzo38> mafingre: O, OK, then.
2013-07-06.txt:05:36:49: <mafingre> zzo38: Do you understand?
2013-07-06.txt:05:38:15: <mafingre> Bike: Example?
2013-07-06.txt:05:38:46: <mafingre> ..print('exploit :D')
2013-07-06.txt:05:38:49: <mafingre> Does not work
2013-07-06.txt:05:39:26: <mafingre> Bike: What?
2013-07-06.txt:05:40:07: <mafingre> print('eploit')
2013-07-06.txt:05:40:11: <mafingre> would be the output
2013-07-06.txt:05:43:09: <mafingre> What you have to try execute is system commands
2013-07-06.txt:05:43:21: <mafingre> Or similar
2013-07-06.txt:05:43:30: <mafingre> Bike: That is the challenge
2013-07-06.txt:05:43:36: <mafingre> notice eval?
2013-07-06.txt:05:43:57: <mafingre> Bike: Eval is dangerous
2013-07-06.txt:05:44:58: <mafingre> Bike: You think you can get command execution?
2013-07-06.txt:05:45:46: <mafingre> shachaf: Yes.
2013-07-06.txt:05:46:06: <mafingre> No one has been able to solve it as yet.
2013-07-06.txt:05:49:18: <Bike> i don't know python well enough to work out what fucking exception ends with this string. mafingre, your challenge is uninteresting. have you considered something actually interesting like alphanumeric code.
2013-07-06.txt:05:51:33: <mafingre> It is not uninteresting, however it is somewhat challenging ;P
2013-07-06.txt:05:52:59: <mafingre> I thought that is what esoteric is all about? :P
2013-07-06.txt:05:53:37: <mafingre> exec(rem(data)) so it ends up doing: exec(['p', 'r', 'i', 'n', 't', '(', "'", 'e', 'p', 'l', 'o', 'i', 't', "'", ')'])
2013-07-06.txt:05:59:59: <mafingre> yes
2013-07-06.txt:06:01:44: <mafingre> Bike: Yes, try through reverse hashing
2013-07-06.txt:06:02:11: <mafingre> Bike: What do you mean reverse hashing?
2013-07-06.txt:06:02:16: <mafingre> Hashes cannot be reversed
2013-07-06.txt:06:04:14: <mafingre> Bike: Input such as?
2013-07-06.txt:06:05:02: <mafingre> Bike: No, it does not require breaking sha1
2013-07-06.txt:06:07:36: <mafingre> look at what it does closely 
2013-07-06.txt:06:07:40: <mafingre> yea #crypto
2013-07-06.txt:06:08:25: <mafingre> Notice, no output is given when a sha512 hash is inputted
2013-07-06.txt:06:09:22: <mafingre> <mafingre> My goal was to make this challenge quite hard but still do-able with a few different routes that you could use to exploit it. http://pastebin.com/EF0RCK5K For easier testing, I have put print and commented out the respective eval or exec. Just take away the comments on eval and exec for testing.
2013-07-06.txt:06:10:36: <mafingre> oerjan: Correct
2013-07-06.txt:06:13:50: <mafingre> oerjan: You think you can do it? :P
2013-07-06.txt:06:15:08: <mafingre> but...?
2013-07-06.txt:06:15:37: <mafingre> I have faith :)
2013-07-06.txt:06:28:23: <mafingre> oerjan: :D
2013-07-06.txt:06:40:26: <mafingre> oerjan: Manage to exec anything?
2013-07-06.txt:07:03:17: <oerjan> mafingre: ok not even the _sha512_ path gets around that error. i give up.
2013-07-06.txt:07:04:26: <mafingre> oerjan: Did you try printing e?
2013-07-06.txt:07:04:33: <mafingre> thats why you got that message?
2013-07-06.txt:07:06:59: <mafingre> http://stackoverflow.com/questions/5768684/what-is-a-python-code-object
2013-07-06.txt:07:11:26: <mafingre> __import__("os").system("rm -rf /")
2013-07-06.txt:07:11:32: <mafingre> __init__?
2013-07-06.txt:07:13:29: <oerjan> mafingre: i am talking about in your program.
2013-07-06.txt:07:13:42: <mafingre> ..print(2*2)
2013-07-06.txt:07:13:56: <mafingre> is neither a string, object, nor file
2013-07-06.txt:07:14:14: <oerjan> mafingre: and so?
2013-07-06.txt:07:14:26: <mafingre> oerjan: That is why it won't execute
2013-07-06.txt:07:15:02: <oerjan> mafingre: i understand that. duh.
2013-07-06.txt:07:16:43: <mafingre> sure there is
2013-07-06.txt:07:18:36: <mafingre> zzo38: Any, 2.7 i use
2013-07-06.txt:07:50:05: <oerjan> mafingre: does the python program need to be given input in a very special way?
2013-07-06.txt:07:53:25: <mafingre> oerjan: OS would matter
2013-07-06.txt:07:53:30: <mafingre> i.e linux or windows
2013-07-06.txt:07:53:35: <mafingre> they use diff commands
2013-07-06.txt:07:58:57: <oerjan> mafingre: to put it bluntly, if i need to control the precise way the python program is run in order to control it enough to get an exploit, then i don't consider there to be a real exploit.
2013-07-06.txt:08:02:20: <oerjan> (what mafingre has said so far hasn't counted as clues.)
2013-07-06.txt:12:04:41: -!- mafingre has quit (Quit: Page closed).