Truck Challenges

This page has cybersecurity related challenges for you to test your skills in heavy vehicle cybersecurity.

J1939 Log Decoding

The following data is reported in the Linux can-utils candump format. It was taken from a 2012 truck-tractor. The data was recorded for about a quarter second. Please parse and decode some of the data and address the questions below.

 (1553794338.000001) can0 18FEF200#180194018502FFFF
(1553794338.000569) can0 1CFE9201#FF24C6FFFFFFFFFF
(1553794338.002777) can0 14F00031#CFFFFFFFFFFFFFFF
(1553794338.003538) can0 0C000F0B#FCFFFA00FFFFFFFF
(1553794338.007083) can0 0CF00400#F1D0CD5A1D00FFCD
(1553794338.007669) can0 18FEDF00#860013FF7EFFFFFF
(1553794338.008244) can0 18FEF600#FF0F5F41FFA033FF
(1553794338.012861) can0 14F00131#FFFFFFFF00FFFFFF
(1553794338.013616) can0 10FF2121#72551FC0C0FFFFE1
(1553794338.014188) can0 0C00100B#FCFFFA00FFFFFFFF
(1553794338.017261) can0 0CF00400#F1D0CC451D00FFCC
(1553794338.020069) can0 14FF3131#0030030000FFFFFF
(1553794338.022750) can0 14FEF121#F3FFFF0FFFFFFFFF
(1553794338.023572) can0 14FF2321#000CE1FFFFFFFFFF
(1553794338.024825) can0 0C00290B#FCFFFA00FFFFFFFF
(1553794338.027109) can0 0CF00400#F1D0CD2F1D00FFCD
(1553794338.027714) can0 18FF3000#0000FFFFFFFFFFFF
(1553794338.028289) can0 18FEF500#C6FFFF10265FFFFF
(1553794338.029960) can0 18FEF117#F3FFFFFFFFFFFFFF
(1553794338.031643) can0 18F00F3D#A00FFFFFFFFFFFFF
(1553794338.032871) can0 14FEF131#CFFFFFF300FFFF30
(1553794338.033577) can0 14FF0121#FFFFFFFFFFFFFCFF
(1553794338.035502) can0 18FE4F3E#0400FFFFFFFFFFFF
(1553794338.037184) can0 0CF00400#F1D0CC2A1D00FFCC
(1553794338.037785) can0 14FFA000#FCFFFFFFFFFFFFFF
(1553794338.038381) can0 18FEF000#FFFFFF0000F000FF
(1553794338.042744) can0 0CF00421#FFFFFFFFFFFFFFFF
(1553794338.043323) can0 0CF00A01#C01F822BFFFFFFFF
(1553794338.043901) can0 10F01A01#0000FFFFFFFFFFFF
(1553794338.044488) can0 14FF0221#FFFFFFFFFFFFFFFF
(1553794338.046124) can0 18F0010B#C0FFF0FFFF0DFF3F
(1553794338.046884) can0 0CF00400#F1D0CD2E1D00FFCD
(1553794338.047458) can0 0CF00300#DCF15FFFFFFFC8FF
(1553794338.048041) can0 18FEF100#C36C140000000030
(1553794338.048609) can0 18FEE000#1BC9A8001BC9A800
(1553794338.052784) can0 14FDA421#FFFFFFFFFFFFFFFF
(1553794338.057034) can0 0CF00400#F1D0CC251D00FFCC
(1553794338.057625) can0 18FEDF00#860013FF7FFFFFFF
(1553794338.062750) can0 14FEF031#FFFFFFFFFFFC00FF
(1553794338.063591) can0 10FF2121#72551FC0C0FFFFE1
(1553794338.064542) can0 18FF2221#0355C30701F3FFFF
(1553794338.066975) can0 0CF00400#F1D0CC181D00FFCC
(1553794338.067562) can0 18F00100#FFFFFFFFFFFFFFFF
(1553794338.068137) can0 18FEEE00#7F56802CFFFF5FFF
(1553794338.077181) can0 0CF00400#F1D0CC161D00FFCC
(1553794338.077769) can0 18F0000F#007DFFFF0F7DFFFF
(1553794338.078357) can0 18FEA400#FFFFFFFFFFFFFFFF
(1553794338.081929) can0 18F00F3D#A00FFFFFFFFFFFFF
(1553794338.082521) can0 18FDB23D#FFFFC0321B00FFFF
(1553794338.083092) can0 18FDB400#0934C032FFFFFFFF
(1553794338.083661) can0 18FD8C3D#26000A00FFFFFFFF
(1553794338.084236) can0 18FECA3D#03FF00000000FFFF
(1553794338.084798) can0 18FFA53D#000A750088357F32
(1553794338.085836) can0 18FFA43D#000000000000FDFF
(1553794338.086385) can0 18FFA33D#9807E80357125046
(1553794338.086943) can0 18FFA23D#0000CF261E041810
(1553794338.087493) can0 18FFA13D#2807730723000050
(1553794338.088048) can0 0CF00400#F1D0CC1A1D00FFCC
(1553794338.088605) can0 18FFA03D#2322220028001CFF
(1553794338.089200) can0 10FE6F00#FFFFFFFFFFFFFFFF
(1553794338.089775) can0 18FEBD00#FA0B4A24FFFFFFFF
(1553794338.092922) can0 0C00000B#FCFFFAFAFFFFFFFF
(1553794338.093490) can0 0CF00A01#D71D902BFFFFFFFF
(1553794338.094073) can0 10F01A01#0000FFFFFFFFFFFF
(1553794338.095444) can0 10FDA301#FFFFFFFFFFFFFFFF
(1553794338.096031) can0 18FDD001#FFFFFF4141FFFFFF
(1553794338.096579) can0 18FEDB01#B321B321B321FFFF
(1553794338.097161) can0 18FD9401#0007FFFFFFFFFFFF
(1553794338.097717) can0 0CF00400#F1D0CC201D00FFCC
(1553794338.098274) can0 18FEBF0B#33137E7B827FFFFF
(1553794338.098842) can0 0CF00300#DCF660FFFFFFC8FF
(1553794338.099424) can0 1CFE9201#FFE8C4FFFFFFFFFF
(1553794338.099991) can0 18FEF200#180194018502FFFF
(1553794338.100584) can0 18FF7400#D600FFFFFFFFFFFF
(1553794338.102800) can0 14F00031#CFFFFFFFFFFFFFFF
(1553794338.107071) can0 0CF00400#F1D0CC1A1D00FFCC
(1553794338.107662) can0 18FEDF00#860013FF7FFFFFFF
(1553794338.108238) can0 18FD7C00#F8F3C074FDFFE3FF
(1553794338.112860) can0 14F00131#FFFFFFFF00FFFFFF
(1553794338.113632) can0 10FF2121#72551FC0C0FFFFE1
(1553794338.117221) can0 0CF00400#F1D0CD121D00FFCD
(1553794338.117809) can0 18FEE400#007FFFFC033FFFFF
(1553794338.120111) can0 14FF3131#0030030000FFFFFF
(1553794338.122754) can0 14FEF121#F3FFFF0FFFFFFFFF
(1553794338.123576) can0 14FF2321#000CE1FFFFFFFFFF
(1553794338.127089) can0 0CF00400#F1D0CD131D00FFCD
(1553794338.127695) can0 18FF3000#0000FFFFFFFFFFFF
(1553794338.129368) can0 18FEF117#F3FFFFFFFFFFFFFF
(1553794338.131658) can0 18F00F3D#A00FFFFFFFFFFFFF
(1553794338.132885) can0 14FEF131#CFFFFFF300FFFF30
(1553794338.133592) can0 14FF0121#FFFFFFFFFFFFFCFF
(1553794338.135535) can0 18FE4F3E#0400FFFFFFFFFFFF
(1553794338.137169) can0 0CF00400#F1D0CD201D00FFCD
(1553794338.137770) can0 14FFA000#FCFFFFFFFFFFFFFF
(1553794338.138364) can0 18FEF000#FFFFFF0000F000FF
(1553794338.142763) can0 0CF00421#FFFFFFFFFFFFFFFF
(1553794338.143334) can0 0CF00A01#881DAD2BFFFFFFFF
(1553794338.143914) can0 10F01A01#0000FFFFFFFFFFFF
(1553794338.144503) can0 14FF0221#FFFFFFFFFFFFFFFF
(1553794338.146153) can0 18F0010B#C0FFF0FFFF0DFF3F
(1553794338.146888) can0 0CF00400#F1D0CD251D00FFCD
(1553794338.147468) can0 0CF00300#DCF860FFFFFFC8FF
(1553794338.148044) can0 18FEF100#C336140000000030
(1553794338.148618) can0 18FEE000#1BC9A8001BC9A800
(1553794338.152756) can0 14FDA421#FFFFFFFFFFFFFFFF
(1553794338.157020) can0 0CF00400#F1D0CD2A1D00FFCD
(1553794338.157607) can0 18FEDF00#860013FF7FFFFFFF
(1553794338.162759) can0 14FEF031#FFFFFFFFFFFC00FF
(1553794338.163618) can0 10FF2121#72551FC0C0FFFFE1
(1553794338.166939) can0 0CF00400#F8D0CD321D00FFCD
(1553794338.167532) can0 18F00100#FFFFFFFFFFFFFFFF
(1553794338.168120) can0 18FE5600#F840FFFF1FFFFFFF
(1553794338.172835) can0 18FF2421#EDF0FFFFFFFFFFFF
(1553794338.177012) can0 0CF00400#F8D0CD4E1D00FFCD
(1553794338.177600) can0 18F0000F#007DFFFF0F7DFFFF
(1553794338.178163) can0 18FEC100#AFA37B10AFA37B10
(1553794338.181915) can0 18F00F3D#A00FFFFFFFFFFFFF
(1553794338.182509) can0 18FDB23D#FFFFC0321B00FFFF
(1553794338.183086) can0 18FDB400#0934C032FFFFFFFF
(1553794338.183649) can0 18FD8C3D#26000A00FFFFFFFF
(1553794338.187264) can0 0CF00400#F8D0CD611D00FFCD
(1553794338.187856) can0 10FE6F00#FFFFFFFFFFFFFFFF
(1553794338.188437) can0 18FEF700#FFFFFFFF17011701
(1553794338.192945) can0 0C00000B#FCFFFAFAFFFFFFFF
(1553794338.193502) can0 0CF00A01#961DEE2BFFFFFFFF
(1553794338.194082) can0 10F01A01#0000FFFFFFFFFFFF
(1553794338.195444) can0 10FDA301#FFFFFFFFFFFFFFFF
(1553794338.196025) can0 18FDD001#FFFFFF4141FFFFFF
(1553794338.196574) can0 18FEDB01#B321B321B321FFFF
(1553794338.197151) can0 18FD9401#5008FFFFFFFFFFFF
(1553794338.197707) can0 0CF00400#F8D0CE6E1D00FFCE
(1553794338.198264) can0 18FEBF0B#62137F7A807EFFFF
(1553794338.198838) can0 0CF00300#DCFA60FFFFFFC8FF
(1553794338.199408) can0 1CFE9201#FF8CC4FFFFFFFFFF
(1553794338.199976) can0 18FEF200#1801C1028502FFFF
(1553794338.202771) can0 14F00031#CFFFFFFFFFFFFFFF
(1553794338.203595) can0 0C000F0B#FCFFFA00FFFFFFFF
(1553794338.207102) can0 0CF00400#F8D0CE7D1D00FFCE
(1553794338.207694) can0 18FEDF00#860013FF7FFFFFFF
(1553794338.212738) can0 14F00131#FFFFFFFF00FFFFFF
(1553794338.213578) can0 10FF2121#72551FC0C0FFFFE1
(1553794338.214242) can0 0C00100B#FCFFFA00FFFFFFFF
(1553794338.217238) can0 0CF00400#F8D0CE931D00FFCE
(1553794338.220060) can0 14FF3131#0030030000FFFFFF
(1553794338.222743) can0 14FEF121#F3FFFF0FFFFFFFFF
(1553794338.223567) can0 14FF2321#000CE1FFFFFFFFFF
(1553794338.224883) can0 0C00290B#FCFFFA00FFFFFFFF
(1553794338.227119) can0 0CF00400#F8D0CEA81D00FFCE
(1553794338.227716) can0 18FF3000#0000FFFFFFFFFFFF
(1553794338.229857) can0 18FEF117#F3FFFFFFFFFFFFFF
(1553794338.231628) can0 18F00F3D#A00FFFFFFFFFFFFF
(1553794338.232816) can0 14FEF131#CFFFFFF300FFFF30
(1553794338.233612) can0 14FF0121#FFFFFFFFFFFFFCFF
(1553794338.235551) can0 18FE4F3E#0400FFFFFFFFFFFF
(1553794338.237182) can0 0CF00400#F8D0CFB61D00FFCF
(1553794338.237783) can0 14FFA000#FCFFFFFFFFFFFFFF
(1553794338.238371) can0 18FEF000#FFFFFF0000F000FF
(1553794338.242735) can0 0CF00421#FFFFFFFFFFFFFFFF
(1553794338.243303) can0 0CF00A01#2D1E5A2CFFFFFFFF
(1553794338.243883) can0 10F01A01#0000FFFFFFFFFFFF
(1553794338.244470) can0 14FF0221#FFFFFFFFFFFFFFFF
(1553794338.246182) can0 18F0010B#C0FFF0FFFF0DFF3F
(1553794338.246903) can0 0CF00400#F8D1CFB31D00FFCF
(1553794338.247478) can0 0CF00300#DCFA62FFFFFFCDFF
(1553794338.248059) can0 18FEF100#C394140000000030
(1553794338.248627) can0 18FEE000#1BC9A8001BC9A800
  • What was the top speed in whole miles per hour of the truck during this time period?
  • What was the lowest engine speed in RPM during this time period?
  • Did the driver have the cruise control set during this time?
  • Did the driver press the service brake pedal during this time?
  • How many different controller applications are broadcasting data on the J1939 network during this time?
  • How many parameter group numbers are on the network at this time?
  • What is the CAN bus load during this time?