Date: Wed, 14 Sep 2016 09:49:43 -0500 From: jfoug <jfoug@...nwall.net> To: john-users@...ts.openwall.com Subject: Re: Error: wordlist contains NULL bytes - aborting On 9/14/2016 9:11 AM, patpro@...pro.net wrote: > Remove the 2 lines with these passwords: >>  >> [4000646f6232] >> >> and the null problems will go away. > Thank you for the tip. My question is a little bit wider though: is there any way for john to handle passwords with null character? Are those password just artifacts (from a hacking attempt for example), or could they be legitimate? > Here is another couple 'fun' ones for john: [310d316e6b61] [326d610d6b61] [3174650d6b61] These have a carriage return in them (the 0d). There are 3 characters which are very hard to deal with in JtR. That is \x00 (null), \x0a and \x0d (line feed and carriage return). Also, the ':' can be tough in certain situations (but is not a problem for an input wordlist). The \x0a and \x0d 'can' be handled in wordlist (using rules, external or mask). I am not sure if john can (or ever will) be able to handle a null byte. It may be that we can handle them with mask mode, I am not sure. It will almost certainly never be able to handle embedded null bytes in wordlist mode
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