/usr/share/w3af/plugins/evasion/shiftOutShiftInBetweenDots.py is in w3af-console 1.1svn5547-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | '''
shiftOutShiftInBetweenDots.py
Copyright 2008 Jose Ramon Palanco
This file is part of w3af, w3af.sourceforge.net .
w3af is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation version 2 of the License.
w3af is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with w3af; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
'''
from core.controllers.basePlugin.baseEvasionPlugin import baseEvasionPlugin
from core.controllers.w3afException import w3afException
from core.data.url.HTTPRequest import HTTPRequest as HTTPRequest
# options
from core.data.options.option import option
from core.data.options.optionList import optionList
class shiftOutShiftInBetweenDots(baseEvasionPlugin):
'''
Insert between dots shift-in and shift-out control characters which are cancelled each other when they are below
@author: Jose Ramon Palanco( jose.palanco@hazent.com )
'''
def __init__(self):
baseEvasionPlugin.__init__(self)
def modifyRequest(self, request ):
'''
Mangles the request
@parameter request: HTTPRequest instance that is going to be modified by the evasion plugin
@return: The modified request
>>> from core.data.parsers.urlParser import url_object
>>> import re
>>> sosibd = shiftOutShiftInBetweenDots()
>>> u = url_object('http://www.w3af.com/')
>>> r = HTTPRequest( u )
>>> sosibd.modifyRequest( r ).url_object.url_string
u'http://www.w3af.com/'
>>> u = url_object('http://www.w3af.com/../')
>>> r = HTTPRequest( u )
>>> sosibd.modifyRequest( r ).url_object.url_string
u'http://www.w3af.com/.%0E%0F./'
>>> u = url_object('http://www.w3af.com/abc/def/.././jkl.htm')
>>> r = HTTPRequest( u )
>>> sosibd.modifyRequest( r ).url_object.url_string
u'http://www.w3af.com/abc/def/.%0E%0F././jkl.htm'
>>> #
>>> # The plugins should not modify the original request
>>> #
>>> u.url_string
u'http://www.w3af.com/abc/def/.././jkl.htm'
'''
# We mangle the URL
path = request.url_object.getPath()
path = path.replace('/../','/.%0E%0F./' )
# Finally, we set all the mutants to the request in order to return it
new_url = request.url_object.copy()
new_url.setPath( path )
new_req = HTTPRequest( new_url , request.get_data(),
request.headers, request.get_origin_req_host() )
return new_req
def getOptions( self ):
'''
@return: A list of option objects for this plugin.
'''
ol = optionList()
return ol
def setOptions( self, OptionList ):
'''
This method sets all the options that are configured using the user interface
generated by the framework using the result of getOptions().
@parameter OptionList: A dictionary with the options for the plugin.
@return: No value is returned.
'''
pass
def getPluginDeps( self ):
'''
@return: A list with the names of the plugins that should be run before the
current one.
'''
return []
def getPriority( self ):
'''
This function is called when sorting evasion plugins.
Each evasion plugin should implement this.
@return: An integer specifying the priority. 100 is run first, 0 last.
'''
return 20
def getLongDesc( self ):
'''
@return: A DETAILED description of the plugin functions and features.
'''
return r'''
This evasion plugin insert between dots shift-in and shift-out control
characters which are cancelled each other when they are below so some
".." filters are bypassed
Example:
Input: '../../../../../../../../etc/passwd'
Output: '.%0E%0F./.%0E%0F./.%0E%0F./.%0E%0F./.%0E%0F./.%0E%0F./.%0E%0F./.%0E%0F./etc/passwd'
'''
|