Awesome
Tool to penetrate V2G networks, monitor and inject packets to attack electric cars and charging stations.
Publications
- Researches paper: https://www.sstic.org/media/SSTIC2019/SSTIC-actes/v2g_injector_playing_with_electric_cars_and_chargi/SSTIC2019-Article-v2g_injector_playing_with_electric_cars_and_charging_stations_via_powerline-dudek.pdf
- Slides from SSTIC 2019: https://www.sstic.org/media/SSTIC2019/SSTIC-actes/v2g_injector_playing_with_electric_cars_and_chargi/SSTIC2019-Slides-v2g_injector_playing_with_electric_cars_and_charging_stations_via_powerline-dudek.pdf
- Video recording from SSTIC 2019 (in French): https://static.sstic.org/videos2019/1080p/SSTIC_2019-06-07_P06.mp4
Support: contact the Penthertz company which is the owner of the project.
Dependencies
Software
- Python 2, and Python 3
- Scapy
- Colorama for Python
- V2Gdecoder in submodules, that is already compiled and available here: https://github.com/FlUxIuS/V2Gdecoder/releases
- HomePlugPWN that is provided in submodules
To install Python dependencies, use pip install -r requirements.txt (or pip3 as needed).
Submodules can be fetched as follows:
$ git submodule update --init --recursive
Hardware
Any devices using the PowerLine-Communication Qualcomm Atheros 7k (QCA7k) series baseband (tested on QCA7420 and QCA7500). For wallplugs, next to the HomePlug logo, there is a text descripting plug's interoperability including HomePlug GP.
The tool has been tested with following devices:
- dLAN Green PHY eval board EU II (~150€)
- PLC Stamp Micro 2 Evaluation Board (Home Automation) (~300€)
- Devolo 1200+ (~50€) -> to rework if you want to bind it to CP lines -> dangerous to get access on TR+/- lines /!\
- Working on QCA7420 chips, but attenuation must be forced on EVSE side for the SLAC procedure
- TODO: test other devices with a QCA7k PLC baseband.
Connections
The PowerLine Communication device could be plugged in three different ways:
- plugging it with an IEC 61851 or any compatible connector for your targeted car (that could be found in Alibaba)
- with an interception cable between the charging station and the car
- or using simply use a default PLC wallplug with a QCA7k connected to the same shared electrical network as the charging station(s) and the car(s).
How to use it
The tool can be started with the following interpreter as follows:
$ python V2GInjector
ooooo oooo ooooooo ooooooo8
888 88 o88 888 o888 88
888 88 o888 888 oooo
88888 o888 o 888o 88
888 o8888oooo88 888ooo888
ooooo o88 o8
888 oo oooooo oooo ooooooooo8 ooooooo o888oo ooooooo oo oooooo
888 888 888 888 888oooooo8 888 888 888 888 888 888 888
888 888 888 888 888 888 888 888 888 888
o888o o888o o888o 888 88oooo888 88ooo888 888o 88ooo88 o888o
o88
~>>>
To collect data automatically, two methods are provided by Network class object:
Network().pcap(<pcap file>)Network().sniff(iface=<interface>)
Decoding V2G packet
First, the V2Gdecoder service must be running as follows:
$ java -jar V2Gdecoder.jar -w
Then, when calling pcap() or sniff() methods as follows, EXI data are simply decoded:
~>>> n=Network()
~>>> n.pcap("/tmp/emulated.pcapng")
<CookedLinux pkttype=unicast lladdrtype=0x304 lladdrlen=6 src='' proto=0x86dd |<IPv6 version=6 tc=0 fl=36603 plen=76 nh=TCP hlim=64 src=fe80::3e2a:b4ff:3e5f:1a4 dst=fe80::3e2a:b4ff:3e5f:1a4 |<TCP sport=54054 dport=62887 seq=1646944081 ack=4294522924 dataofs=8 reserved=0 flags=PA window=342 chksum=0xb60d urgptr=0 options=[('NOP', None), ('NOP', None), ('Timestamp', (1430435299, 1430435274))] |<V2GTP Version=1 Invers=254 PayloadType=EXI PayloadLen=36 Payload='\x80\x00\xeb\xab\x93q\xd3K\x9by\xd1\x89\xa9\x89\x89\xc1\xd1\x91\xd1\x91\x81\x89\x99\xd2k\x9b:#+0\x02\x00\x00(\x00@' |>>>>
[Decoded packet]
<?xml version="1.0" encoding="UTF-8"?><ns4:supportedAppProtocolReq xmlns:ns4="urn:iso:15118:2:2010:AppProtocol" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns3="http://www.w3.org/2001/XMLSchema"><AppProtocol><ProtocolNamespace>urn:iso:15118:2:2013:MsgDef</ProtocolNamespace><VersionNumberMajor>2</VersionNumberMajor><VersionNumberMinor>0</VersionNumberMinor><SchemaID>10</SchemaID><Priority>1</Priority></AppProtocol></ns4:supportedAppProtocolReq>
<CookedLinux pkttype=unicast lladdrtype=0x304 lladdrlen=6 src='' proto=0x86dd |<IPv6 version=6 tc=0 fl=218843 plen=44 nh=TCP hlim=64 src=fe80::3e2a:b4ff:3e5f:1a4 dst=fe80::3e2a:b4ff:3e5f:1a4 |<TCP sport=62887 dport=54054 seq=4294522924 ack=1646944125 dataofs=8 reserved=0 flags=PA window=342 chksum=0xb5ed urgptr=0 options=[('NOP', None), ('NOP', None), ('Timestamp', (1430435378, 1430435299))] |<V2GTP Version=1 Invers=254 PayloadType=EXI PayloadLen=4 Payload='\x80@\x02\x80' |>>>>
[Decoded packet]
<?xml version="1.0" encoding="UTF-8"?><ns4:supportedAppProtocolRes xmlns:ns4="urn:iso:15118:2:2010:AppProtocol" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns3="http://www.w3.org/2001/XMLSchema"><ResponseCode>OK_SuccessfulNegotiation</ResponseCode><SchemaID>10</SchemaID></ns4:supportedAppProtocolRes>
<CookedLinux pkttype=unicast lladdrtype=0x304 lladdrlen=6 src='' proto=0x86dd |<IPv6 version=6 tc=0 fl=36603 plen=61 nh=TCP hlim=64 src=fe80::3e2a:b4ff:3e5f:1a4 dst=fe80::3e2a:b4ff:3e5f:1a4 |<TCP sport=54054 dport=62887 seq=1646944125 ack=4294522936 dataofs=8 reserved=0 flags=PA window=342 chksum=0xb5fe urgptr=0 options=[('NOP', None), ('NOP', None), ('Timestamp', (1430435406, 1430435378))] |<V2GTP Version=1 Invers=254 PayloadType=EXI PayloadLen=21 Payload="\x80\x98\x02\x00\x00\x00\x00\x00\x00\x00\x00\x11\xd0\x18pn\xd5\xac'X\x00" |>>>>
[Decoded packet]
<?xml version="1.0" encoding="UTF-8"?><ns7:V2G_Message xmlns:ns7="urn:iso:15118:2:2013:MsgDef" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns3="http://www.w3.org/2001/XMLSchema" xmlns:ns4="http://www.w3.org/2000/09/xmldsig#" xmlns:ns5="urn:iso:15118:2:2013:MsgBody" xmlns:ns6="urn:iso:15118:2:2013:MsgDataTypes" xmlns:ns8="urn:iso:15118:2:2013:MsgHeader"><ns7:Header><ns8:SessionID>0000000000000000</ns8:SessionID></ns7:Header><ns7:Body><ns5:SessionSetupReq><ns5:EVCCID>1C1BB56B09D6</ns5:EVCCID></ns5:SessionSetupReq></ns7:Body></ns7:V2G_Message>
<CookedLinux pkttype=unicast lladdrtype=0x304 lladdrlen=6 src='' proto=0x86dd |<IPv6 version=6 tc=0 fl=218843 plen=69 nh=TCP hlim=64 src=fe80::3e2a:b4ff:3e5f:1a4 dst=fe80::3e2a:b4ff:3e5f:1a4 |<TCP sport=62887 dport=54054 seq=4294522936 ack=1646944154 dataofs=8 reserved=0 flags=PA window=342 chksum=0xb606 urgptr=0 options=[('NOP', None), ('NOP', None), ('Timestamp', (1430435411, 1430435406))] |<V2GTP Version=1 Invers=254 PayloadType=EXI PayloadLen=29 Payload="\x80\x98\x02'\xe5\xc2N\x07\xc8h\xae\xd1\xe0 )\x15YM\x15%\x10\xb4\xc0\x1c\xfb\x1e\x1c\xc0\xa0" |>>>>
[Decoded packet]
<?xml version="1.0" encoding="UTF-8"?><ns7:V2G_Message xmlns:ns7="urn:iso:15118:2:2013:MsgDef" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns3="http://www.w3.org/2001/XMLSchema" xmlns:ns4="http://www.w3.org/2000/09/xmldsig#" xmlns:ns5="urn:iso:15118:2:2013:MsgBody" xmlns:ns6="urn:iso:15118:2:2013:MsgDataTypes" xmlns:ns8="urn:iso:15118:2:2013:MsgHeader"><ns7:Header><ns8:SessionID>9F9709381F21A2BB</ns8:SessionID></ns7:Header><ns7:Body><ns5:SessionSetupRes><ns5:ResponseCode>OK_NewSessionEstablished</ns5:ResponseCode><ns5:EVSEID>EVSEID-0</ns5:EVSEID><ns5:EVSETimeStamp>1557933159</ns5:EVSETimeStamp></ns5:SessionSetupRes></ns7:Body></ns7:V2G_Message>
<CookedLinux pkttype=unicast lladdrtype=0x304 lladdrlen=6 src='' proto=0x86dd |<IPv6 version=6 tc=0 fl=36603 plen=53 nh=TCP hlim=64 src=fe80::3e2a:b4ff:3e5f:1a4 dst=fe80::3e2a:b4ff:3e5f:1a4 |<TCP sport=54054 dport=62887 seq=1646944154 ack=4294522973 dataofs=8 reserved=0 flags=PA window=342 chksum=0xb5f6 urgptr=0 options=[('NOP', None), ('NOP', None), ('Timestamp', (1430435414, 1430435411))] |<V2GTP Version=1 Invers=254 PayloadType=EXI PayloadLen=13 Payload="\x80\x98\x02'\xe5\xc2N\x07\xc8h\xae\xd1\xb8" |>>>>
[Decoded packet]
<?xml version="1.0" encoding="UTF-8"?><ns7:V2G_Message xmlns:ns7="urn:iso:15118:2:2013:MsgDef" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns3="http://www.w3.org/2001/XMLSchema" xmlns:ns4="http://www.w3.org/2000/09/xmldsig#" xmlns:ns5="urn:iso:15118:2:2013:MsgBody" xmlns:ns6="urn:iso:15118:2:2013:MsgDataTypes" xmlns:ns8="urn:iso:15118:2:2013:MsgHeader"><ns7:Header><ns8:SessionID>9F9709381F21A2BB</ns8:SessionID></ns7:Header><ns7:Body><ns5:ServiceDiscoveryReq/></ns7:Body></ns7:V2G_Message>
<CookedLinux pkttype=unicast lladdrtype=0x304 lladdrlen=6 src='' proto=0x86dd |<IPv6 version=6 tc=0 fl=218843 plen=83 nh=TCP hlim=64 src=fe80::3e2a:b4ff:3e5f:1a4 dst=fe80::3e2a:b4ff:3e5f:1a4 |<TCP sport=62887 dport=54054 seq=4294522973 ack=1646944175 dataofs=8 reserved=0 flags=PA window=342 chksum=0xb614 urgptr=0 options=[('NOP', None), ('NOP', None), ('Timestamp', (1430435419, 1430435414))] |<V2GTP Version=1 Invers=254 PayloadType=EXI PayloadLen=43 Payload="\x80\x98\x02'\xe5\xc2N\x07\xc8h\xae\xd1\xc0\x01 \x04\x05QU\x88\x18\xda\x18\\\x99\xda[\x99\xc8\n\x10P\xcb\xd1\x10\xca@@ \x01\x03\x08H" |>>>>
[Decoded packet]
<?xml version="1.0" encoding="UTF-8"?><ns7:V2G_Message xmlns:ns7="urn:iso:15118:2:2013:MsgDef" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns3="http://www.w3.org/2001/XMLSchema" xmlns:ns4="http://www.w3.org/2000/09/xmldsig#" xmlns:ns5="urn:iso:15118:2:2013:MsgBody" xmlns:ns6="urn:iso:15118:2:2013:MsgDataTypes" xmlns:ns8="urn:iso:15118:2:2013:MsgHeader"><ns7:Header><ns8:SessionID>9F9709381F21A2BB</ns8:SessionID></ns7:Header><ns7:Body><ns5:ServiceDiscoveryRes><ns5:ResponseCode>OK</ns5:ResponseCode><ns5:PaymentOptionList><ns6:PaymentOption>ExternalPayment</ns6:PaymentOption></ns5:PaymentOptionList><ns5:ChargeService><ns6:ServiceID>1</ns6:ServiceID><ns6:ServiceName>EV charging (AC/DC)</ns6:ServiceName><ns6:ServiceCategory>EVCharging</ns6:ServiceCategory><ns6:FreeService>false</ns6:FreeService><ns6:SupportedEnergyTransferMode><ns6:EnergyTransferMode>AC_three_phase_core</ns6:EnergyTransferMode><ns6:EnergyTransferMode>AC_single_phase_core</ns6:EnergyTransferMode><ns6:EnergyTransferMode>DC_core</ns6:EnergyTransferMode><ns6:EnergyTransferMode>DC_extended</ns6:EnergyTransferMode><ns6:EnergyTransferMode>DC_combo_core</ns6:EnergyTransferMode></ns6:SupportedEnergyTransferMode></ns5:ChargeService></ns5:ServiceDiscoveryRes></ns7:Body></ns7:V2G_Message>
[...]
Collected HPGP keys
Collected HomePlug GP keys are directly show when calling pcap() or sniff():
~>>> n=Network()
~>>> n.sniff(iface="eth0")
[...]
[New HPGP network spotted!]
- EVSEID: '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
- NetID: '\xae\x20\x00\xff\x82\x02\x00'
- NMK: '\x43F\xc8\xaeT\xbf\xefs\x01\x84\x94\xf8\xc3\x17'
- EVID: '\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff'
- RunID: '\xef\x34C\xf5E\xe0\xa6\x01'
These data are stored in the Network().hpgp attribute.
This can then be used to configure your PLC device's PIB by dumping it with plctool and using slac\pev tool and profile file.
Generate V2G packets
As it uses Scapy and extension layers, a V2G packet can be built using the same logic as Scapy:
~>>> ether = Ether()
~>>> ip = IPv6(dst="fe80::3e2a:b4ff:3e5f:1a4")
~>>> tcp = TCP(sport=6666, dport=54054, flags=24)
~>>> v2g=V2GTP()
~>>> packet = ether/ip/tcp/v2g
~>>> packet
<Ether type=0x86dd |<IPv6 nh=TCP dst=fe80::3e2a:b4ff:3e5f:1a4 |<TCP sport=6666 dport=54054 flags=PA |<V2GTP |>>>>
But we need to push an EXI encoded payload in the V2GTP layer:
~>>> packet[V2GTP].show()
###[ V2GTP ]###
Version = 1
Invers = 254
PayloadType= EXI
PayloadLen= 0
Payload = ''
To do that, as for the analyse() method call by sniff() and pcap() which uses decodeEXI() function to decode EXI data, a encoder function encodeEXI also exists to compress the XML payload to EXI:
~>>> xml = '<?xml version="1.0" encoding="UTF-8"?><ns7:V2G_Message xmlns:ns7="urn:iso:15118:2:2013:MsgDef" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns3="http://www.w3.org/2001/XMLSchema" xmlns:ns4="http://www.w3.org/2000/09/xmldsig#" xmlns:ns5="urn:iso:15118:2:2013:MsgBody" xmlns:ns6="urn:iso:15118:2:2013:MsgDataTypes" xmlns:ns8="urn:iso:15118:2:2013:MsgHeader"><ns7:Header><ns8:SessionID>0000000000000000</ns8:SessionID></ns7:Header><ns7:Body><ns5:SessionSetupReq><ns5:EVCCID>1C1BB56B09D6</ns5:EVCCID></ns5:SessionSetupReq></ns7:Body></ns7:V2G_Message>'
~>>> encoded_xml=encodeEXI(xml)
~>>> encoded_xml
u'809802000000000000000011D018706ED5AC275800'
Then, the encoded/compressed data in EXI can be pushed in the V2GTP payload as follows:
~>>> packet.Payload=encoded_xml
~>>> packet
<Ether type=0x86dd |<IPv6 nh=TCP dst=fe80::3e2a:b4ff:3e5f:1a4 |<TCP sport=6666 dport=54054 flags=PA |<V2GTP Payload='809802000000000000000011D018706ED5AC275800' |>>>>
To finish, the packet can be sent to the target using Scapy's sendp() function.
Further development
- Make a native Python EXI encoder/decoder -> very long task to do, or try using the C++ EXI Wrapper in Python
- Add other wrappers
- Add some pre-developed attacking functions during interception
- More docs