Dear Experts,
I've finish my job writting Session Fixation Audit plugin.
Can you test the plugin and give me comments about it.. I'll fix it
immidiately.
The plugin is attached.
Thank you very much.. I hope I can contribute much to W3af Community..
--
Best Regards,
Summer Nguyen .
'''
xss.py
Copyright 2006 Andres Riancho
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
'''
import core.controllers.outputManager as om
from core.data.dc.form import form as form
# options
from core.data.options.option import option
from core.data.options.optionList import optionList
from core.controllers.basePlugin.baseAuditPlugin import baseAuditPlugin
from core.data.fuzzer.fuzzer import createMutants, createRandAlNum
from core.controllers.w3afException import w3afException
import core.data.kb.knowledgeBase as kb
import core.data.kb.vuln as vuln
import core.data.constants.severity as severity
import string
import re
class sessionfixation(baseAuditPlugin):
'''
Find cross site scripting vulnerabilities.
@author: Summer Nguyen (summer0ngu...@gmail.com)
Steps:
1. Attacker get SSID
2. Victim login use valid username and password , .. and attacker' SSID
If server provide new SSID => NO VULN
otherwise => VULN
'''
def __init__(self):
baseAuditPlugin.__init__(self)
self._fuzzableRequests = []
self._hasID = False
self._username = 'username' ## Webmaster provide valid username and password to test the website
self._password = 'password'
self._SSID=''
self._SSIDparam=''
def audit(self, freq ):
'''
Tests an URL for Session Fixation vulnerabilities.
@param freq: A fuzzableRequest
'''
om.out.debug( 'Session Fixation plugin is testing: ' + freq.getURL() )
# Save it here, so I can check this URL after geting the SSID
self._fuzzableRequests.append(freq)
if self._hasID: ## I have SSID of anomunous user ( Attacker)
if self._isLoginForm(freq): ## Find Login form to login
self._victimlogin(freq) ## Victim Login
else: ## I am an attacker, I am trying to get SSID of anonymous user
if self._hasSSID(freq):
self._hasID=True
if self._isLoginForm(freq): ## Check if this URL is a login form
self._victimlogin(freq)
for freq in self._fuzzableRequests: ## Check the URL that are saved above
if self._isLoginForm(freq):
self._victimlogin(freq)
def _victimlogin(self,freq):
'''
Victim login useing valid username,password .. and use attacker's SSID
'''
data_container = freq.getDc()
user_field, passwd_field = self._getLoginFieldNames( freq )
data_container[ user_field ] = self._username ## Valid Username, Password
data_container[ passwd_field ] = self._password
freq.setDc( data_container )
Cookie=self._getJSESSION()
mutants = createMutants( freq , Cookie )
for mutant in mutants:
targs = (mutant,)
self._tm.startFunction( target=self._sendMutant, args=targs, ownerObj=self )
def _hasSSID( self, freq ):
'''
Check if the server provide a new SSID
'''
response = self._sendMutant( freq , analyze=False, grepResult=False )
params=self._getSSIDparam()
res2string=str(response.getHeaders()) ## convert to String
if 'Set-Cookie' in res2string: ## There is Cookie param
print "KAKAKAKAKAK"
SSID=''
for param in params:
num=string.find(res2string,param)
if num!= -1:
self._SSIDparam=param
char =''
i=1
end=False
while not end: ## Get the SSID value
char=res2string[num+len(param)+i]
if char!=';':
SSID+=char
else:
end=True
i=i+1
return True
return False
def _getJSESSION(self):
'''
Use the attacker's SESSION ID when victim logging in
'''
js=[]
js.append("Cookie: "+self._SSIDparam+"="+self._SSID)
return js
def _isLoginForm( self, freq ):
'''
@return: True if this fuzzableRequest is a loginForm.
'''
passwd = 0
text = 0
other = 0
data_container = freq.getDc()
if isinstance(data_container ,form ):
for key in data_container.keys():
if data_container.getType( key ).lower() == 'password':
passwd += 1
elif data_container.getType( key ).lower() == 'text':
text += 1
else:
other += 1
if text == 1 and passwd == 1:
return True
return False
def _getLoginFieldNames( self, freq ):
'''
@return: The names of the form fields where to input the user and the password.
'''
data_container = freq.getDc()
user = passwd = ''
if isinstance(data_container ,form ):
for key in data_container.keys():
if data_container.getType( key ).lower() == 'password':
passwd = key
elif data_container.getType( key ).lower() == 'text':
user = key
return user, passwd
def _analyzeResult( self, mutant, response ):
'''
Do we have a reflected XSS?
@return: None, record all the results in the kb.
'''
vuln=False
param=self._SSIDparam
res2string=str(response.getHeaders())
if 'Set-Cookie' in res2string:
SSID=''
num=string.find(res2string,param)
if num== -1: ## THERE IS NO SSID => VULN
vuln=True
else: ## THERE IS SSID, GET SSID NOW
param=self._SSIDparam
res2string=str(response.getHeaders())
SSID=''
char=''
i=1
end=False
while not end: ## Get the SSID value
char=res2string[num+len(param)+i]
if char!=';':
SSID+=char
else:
end=True
i=i+1
if SSID==self._SSID:
vuln=True
else:
vuln=True
if vuln: ## there is VULN
v = vuln.vuln( mutant )
v.setId( response.id )
v.setName( 'Session Fixation vulnerability' )
v.setSeverity(severity.MEDIUM)
kb.kb.append( self, 'sessionfixation', v )
def _getSSIDparam(self ):
'''
SSID parameters, Please add more parameters
'''
param=[]
param.append('JSESSIONID')
param.append('wordpress_test_cookie')
param.append('PHPSESSIONID')
param.append('SID')
return param
def getOptions( self ):
'''
@return: A list of option objects for this plugin.
'''
ol = optionList()
return ol
def setOptions( self, optionsMap ):
'''
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 runned before the
current one.
'''
return []
def getLongDesc( self ):
'''
@return: A DETAILED description of the plugin functions and features.
'''
return '''
This plugin finds Cross Site Scripting (XSS) vulnerabilities.
Two configurable parameters exist:
- checkStored
- numberOfChecks
To find XSS bugs the plugin will send a set of javascript strings to every parameter, and search for that input in
the response. The parameter "checkStored" configures the plugin to store all data sent to the web application
and at the end, request all pages again searching for that input; the numberOfChecks determines how many
javascript strings are sent to every injection point.
'''
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