Module: PWN::Plugins::Packet

Defined in:
lib/pwn/plugins/packet.rb

Overview

This plugin is used for interacting with PCAP files to map out and visualize in an automated fashion what comprises a infrastructure, network, and/or application

Class Method Summary collapse

Class Method Details

.authors ⇒ Object

Author(s)

0day Inc. <[email protected]>



1198
1199
1200
1201
1202
 
# File 'lib/pwn/plugins/packet.rb', line 1198

public_class_method def self.authors
  "AUTHOR(S):
    0day Inc. <[email protected]>
  "
end

.construct_arp(opts = {}) ⇒ Object

Supported Method Parameters

pkt = PWN::Plugins::Packet.construct_arp(

ip_saddr: 'required - source ip of packet',
ip_daddr: 'required - destination ip to send packet',
payload: 'optional - packet payload defaults to empty string',
ip_id: 'optional - defaults to 0xfeed',
iface: 'optional - interface to send packet (defaults to eth0)',

)



42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
 
# File 'lib/pwn/plugins/packet.rb', line 42

public_class_method def self.construct_arp(opts = {})
  # Ethernet Header
  eth_src = opts[:eth_src]
  eth_dst = opts[:eth_dst]

  if opts[:eth_proto]
    eth_proto = opts[:eth_proto]
  else
    eth_proto = 0x0806 # ARP
  end

  # ARP Header
  if opts[:arp_hw]
    arp_hw = opts[:arp_hw].to_i
  else
    arp_hw = 1
  end

  if opts[:arp_proto]
    arp_proto = opts[:arp_proto]
  else
    arp_proto = 0x0800 # IPv4
  end

  if opts[:arp_hw_len]
    arp_hw_len = opts[:arp_hw_len].to_i
  else
    arp_hw_len = 6
  end

  if opts[:arp_proto_len]
    arp_proto_len = opts[:arp_proto_len].to_i
  else
    arp_proto_len = 4
  end

  if opts[:arp_opcode]
    arp_opcode = opts[:arp_opcode].to_i
  else
    arp_opcode = 1
  end

  arp_src_mac = opts[:arp_src_mac]
  arp_ip_saddr = opts[:ip_saddr].to_s.scrub.strip.chomp

  arp_dst_mac = opts[:arp_dst_mac]
  arp_ip_daddr = opts[:ip_daddr].to_s.scrub.strip.chomp

  # Payload
  payload = opts[:payload]

  pkt = PacketFu::ARPPacket.new(config: PacketFu::Utils.whoami?)
  # Ethernet Header
  pkt.eth_saddr = eth_src unless eth_src.nil?
  pkt.eth_daddr = eth_dst unless eth_dst.nil?
  pkt.eth_proto = eth_proto
  # ARP Header
  pkt.arp_hw = arp_hw
  pkt.arp_proto = arp_proto
  pkt.arp_hw_len = arp_hw_len
  pkt.arp_proto_len = arp_proto_len
  pkt.arp_opcode = arp_opcode
  pkt.arp_saddr_mac = arp_src_mac
  pkt.arp_saddr_ip = arp_ip_saddr
  pkt.arp_daddr_mac = arp_dst_mac
  pkt.arp_daddr_ip = arp_ip_daddr
  # Payload
  pkt.payload = payload if payload

  pkt
rescue StandardError => e
  raise e
end

.construct_eth(opts = {}) ⇒ Object

Supported Method Parameters

pkt = PWN::Plugins::Packet.construct_eth(

ip_saddr: 'required - source ip of packet',
ip_daddr: 'required - destination ip to send packet',
payload: 'optional - packet payload defaults to empty string',
ip_id: 'optional - defaults to 0xfeed',
iface: 'optional - interface to send packet (defaults to eth0)',

)



125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
 
# File 'lib/pwn/plugins/packet.rb', line 125

public_class_method def self.construct_eth(opts = {})
  # Ethernet Header
  eth_src = opts[:eth_src]
  eth_dst = opts[:eth_dst]

  if opts[:eth_proto]
    eth_proto = opts[:eth_proto]
  else
    eth_proto = 0x0800 # IPv4
  end

  # Payload
  payload = opts[:payload]

  pkt = PacketFu::EthPacket.new(config: PacketFu::Utils.whoami?)
  # Ethernet Header
  pkt.eth_saddr = eth_src unless eth_src.nil?
  pkt.eth_daddr = eth_dst unless eth_dst.nil?
  pkt.eth_proto = eth_proto
  # Payload
  pkt.payload = payload if payload

  pkt
rescue StandardError => e
  raise e
end

.construct_hsrp(opts = {}) ⇒ Object

Supported Method Parameters

pkt = PWN::Plugins::Packet.construct_hsrp(

ip_saddr: 'required - source ip of packet',
ip_daddr: 'required - destination ip to send packet',
payload: 'optional - packet payload defaults to empty string',
ip_id: 'optional - defaults to 0xfeed',
iface: 'optional - interface to send packet (defaults to eth0)',

)



161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
 
# File 'lib/pwn/plugins/packet.rb', line 161

public_class_method def self.construct_hsrp(opts = {})
  # Ethernet Header
  eth_src = opts[:eth_src]
  eth_dst = opts[:eth_dst]

  if opts[:eth_proto]
    eth_proto = opts[:eth_proto]
  else
    eth_proto = 0x0800 # IPv4
  end

  # IP Header
  if opts[:ip_v]
    ip_v = opts[:ip_v]
  else
    ip_v = 4
  end

  if opts[:ip_hl]
    ip_hl = opts[:ip_hl]
  else
    ip_hl = 5
  end

  if opts[:ip_tos]
    ip_tos = opts[:ip_tos]
  else
    ip_tos = 0
  end

  if opts[:ip_len]
    ip_len = opts[:ip_len]
  else
    ip_len = 20
  end

  if opts[:ip_id]
    ip_id = opts[:ip_id]
  else
    ip_id = 0xfeed
  end

  if opts[:ip_frag]
    ip_frag = opts[:ip_frag]
  else
    ip_frag = 0
  end

  if opts[:ip_ttl]
    ip_ttl = opts[:ip_ttl]
  else
    ip_ttl = 32
  end

  if opts[:ip_proto]
    ip_proto = opts[:ip_proto]
  else
    ip_proto = 17 # UDP
  end

  if opts[:ip_sum]
    ip_sum = opts[:ip_sum]
  else
    ip_sum = 0xffff
  end

  ip_saddr = opts[:ip_saddr]
  ip_daddr = opts[:ip_daddr]

  # UDP Header
  udp_src_port = opts[:udp_src_port]
  udp_dst_port = opts[:udp_dst_port]

  if opts[:udp_len]
    udp_len = opts[:udp_len]
  else
    udp_len = 8
  end

  if opts[:udp_sum]
    udp_sum = opts[:udp_sum]
  else
    udp_sum = 0x0000
  end

  # HSRP Header
  if opts[:hsrp_version]
    hsrp_version = opts[:hsrp_version]
  else
    hsrp_version = 0
  end

  if opts[:hsrp_opcode]
    hsrp_opcode = opts[:hsrp_opcode]
  else
    hsrp_opcode = 0
  end

  if opts[:hsrp_state]
    hsrp_state = opts[:hsrp_state]
  else
    hsrp_state = 0
  end

  if opts[:hsrp_hellotime]
    hsrp_state = opts[:hsrp_hellotime]
  else
    hsrp_state = 3
  end

  if opts[:hsrp_holdtime]
    hsrp_holdtime = opts[:hsrp_holdtime]
  else
    hsrp_holdtime = 10
  end

  if opts[:hsrp_priority]
    hsrp_priority = opts[:hsrp_priority]
  else
    hsrp_priority = 0
  end

  if opts[:hsrp_group]
    hsrp_group = opts[:hsrp_group]
  else
    hsrp_group = 0
  end

  if opts[:hsrp_reserved]
    hsrp_reserved = opts[:hsrp_reserved]
  else
    hsrp_reserved = 0
  end

  if opts[:hsrp_password]
    hsrp_password = opts[:hsrp_password]
  else
    hsrp_password = "cicso\x00\x00\x00"
  end

  if opts[:hsrp_addr]
    hsrp_addr = opts[:hsrp_addr]
  else
    hsrp_addr = '0.0.0.0'
  end

  # Payload
  payload = opts[:payload]

  pkt = PacketFu::HSRPPacket.new(config: PacketFu::Utils.whoami?)
  # Ethernet Header
  pkt.eth_saddr = eth_src unless eth_src.nil?
  pkt.eth_daddr = eth_dst unless eth_dst.nil?
  pkt.eth_proto = eth_proto
  # IP Header
  pkt.ip_v = ip_v
  pkt.ip_hl = ip_hl
  pkt.ip_tos = ip_tos
  pkt.ip_len = ip_len
  pkt.ip_id = ip_id
  pkt.ip_frag = ip_frag
  pkt.ip_ttl = ip_ttl
  pkt.ip_proto = ip_proto
  pkt.ip_sum = ip_sum
  pkt.ip_saddr = ip_saddr
  pkt.ip_daddr = ip_daddr
  # UDP Header
  pkt.udp_src = udp_src_port if udp_src_port
  pkt.udp_dst = udp_dst_port if udp_dst_port
  pkt.udp_len = udp_len
  pkt.udp_sum = udp_sum
  # HSRP Header
  pkt.hsrp_version = hsrp_version
  pkt.hsrp_opcode = hsrp_opcode
  pkt.hsrp_state = hsrp_state
  pkt.hsrp_hellotime = hsrp_hellotime
  pkt.hsrp_holdtime = hsrp_holdtime
  pkt.hsrp_priority = hsrp_priority
  pkt.hsrp_group = hsrp_group
  pkt.hsrp_reserved = hsrp_reserved
  pkt.hsrp_password = hsrp_password
  pkt.hsrp_addr = hsrp_addr
  # Payload
  pkt.payload = payload if payload

  pkt
rescue StandardError => e
  raise e
end

.construct_icmp(opts = {}) ⇒ Object

Supported Method Parameters

pkt = PWN::Plugins::Packet.construct_icmp(

ip_saddr: 'required - source ip of packet',
ip_daddr: 'required - destination ip to send packet',
payload: 'optional - packet payload defaults to "*ping*"',
ip_id: 'optional - defaults to 0xfeed',
iface: 'optional - interface to send packet (defaults to eth0)',

)



360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
 
# File 'lib/pwn/plugins/packet.rb', line 360

public_class_method def self.construct_icmp(opts = {})
  # Ethernet Header
  eth_src = opts[:eth_src]
  eth_dst = opts[:eth_dst]

  if opts[:eth_proto]
    eth_proto = opts[:eth_proto]
  else
    eth_proto = 0x0800 # IPv4
  end

  # IP Header
  if opts[:ip_v]
    ip_v = opts[:ip_v]
  else
    ip_v = 4
  end

  if opts[:ip_hl]
    ip_hl = opts[:ip_hl]
  else
    ip_hl = 5
  end

  if opts[:ip_tos]
    ip_tos = opts[:ip_tos]
  else
    ip_tos = 0
  end

  if opts[:ip_len]
    ip_len = opts[:ip_len]
  else
    ip_len = 20
  end

  if opts[:ip_id]
    ip_id = opts[:ip_id]
  else
    ip_id = 0xfeed
  end

  if opts[:ip_frag]
    ip_frag = opts[:ip_frag]
  else
    ip_frag = 0
  end

  if opts[:ip_ttl]
    ip_ttl = opts[:ip_ttl]
  else
    ip_ttl = 32
  end

  if opts[:ip_proto]
    ip_proto = opts[:ip_proto]
  else
    ip_proto = 1 # ICMP
  end

  if opts[:ip_sum]
    ip_sum = opts[:ip_sum]
  else
    ip_sum = 0xffff
  end

  ip_saddr = opts[:ip_saddr]
  ip_daddr = opts[:ip_daddr]

  # ICMP Header
  if opts[:icmp_type]
    icmp_type = opts[:icmp_type]
  else
    icmp_type = 8
  end

  if opts[:icmp_code]
    icmp_code = opts[:icmp_code]
  else
    icmp_code = 0
  end

  if opts[:icmp_sum]
    icmp_sum = opts[:icmp_sum]
  else
    icmp_sum = 0xffff
  end

  # Payload
  opts[:payload] ? payload = opts[:payload] : payload = '*ping*'

  pkt = PacketFu::ICMPPacket.new(config: PacketFu::Utils.whoami?)
  # Ethernet Header
  pkt.eth_saddr = eth_src unless eth_src.nil?
  pkt.eth_daddr = eth_dst unless eth_dst.nil?
  pkt.eth_proto = eth_proto
  # IP Header
  pkt.ip_v = ip_v
  pkt.ip_hl = ip_hl
  pkt.ip_tos = ip_tos
  pkt.ip_len = ip_len
  pkt.ip_id = ip_id
  pkt.ip_frag = ip_frag
  pkt.ip_ttl = ip_ttl
  pkt.ip_proto = ip_proto
  pkt.ip_sum = ip_sum
  pkt.ip_saddr = ip_saddr
  pkt.ip_daddr = ip_daddr
  # ICMP Header
  pkt.icmp_type = icmp_type
  pkt.icmp_code = icmp_code
  pkt.icmp_sum = icmp_sum
  # Payload
  pkt.payload = payload if payload

  pkt
rescue StandardError => e
  raise e
end

.construct_icmpv6(opts = {}) ⇒ Object

Supported Method Parameters

pkt = PWN::Plugins::Packet.construct_icmpv6(

ip_saddr: 'required - source ip of packet',
ip_daddr: 'required - destination ip to send packet',
payload: 'optional - packet payload defaults to empty string',
ip_id: 'optional - defaults to 0xfeed',
iface: 'optional - interface to send packet (defaults to eth0)',

)



489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
 
# File 'lib/pwn/plugins/packet.rb', line 489

public_class_method def self.construct_icmpv6(opts = {})
  # Ethernet Header
  eth_src = opts[:eth_src]
  eth_dst = opts[:eth_dst]

  if opts[:eth_proto]
    eth_proto = opts[:eth_proto]
  else
    eth_proto = 0x86dd # IPv6
  end

  # IPv6 Header
  if opts[:ipv6_v]
    ipv6_v = opts[:ipv6_v]
  else
    ipv6_v = 6
  end

  if opts[:ipv6_class]
    ipv6_class = opts[:ipv6_class]
  else
    ipv6_class = 0
  end

  if opts[:ipv6_label]
    ipv6_label = opts[:ipv6_label]
  else
    ipv6_label = 0
  end

  if opts[:ipv6_len]
    ipv6_len = opts[:ipv6_len]
  else
    ipv6_len = 0
  end

  if opts[:ipv6_next]
    ipv6_next = opts[:ipv6_next]
  else
    ipv6_next = 58
  end

  if opts[:ipv6_hop]
    ipv6_hop = opts[:ipv6_hop]
  else
    ipv6_hop = 255
  end

  ipv6_saddr = opts[:ipv6_saddr]
  ipv6_daddr = opts[:ipv6_daddr]

  # ICMPv6 Header
  if opts[:icmpv6_type]
    icmpv6_type = opts[:icmpv6_type]
  else
    icmp_type = 8
  end

  if opts[:icmpv6_code]
    icmpv6_code = opts[:icmpv6_code]
  else
    icmpv6_code = 0
  end

  if opts[:icmpv6_sum]
    icmp_sum = opts[:icmpv6_sum]
  else
    icmpv6_sum = 0x0000
  end

  # Payload
  payload = opts[:payload]

  pkt = PacketFu::IPv6Packet.new(config: PacketFu::Utils.whoami?)
  # Ethernet Header
  pkt.eth_saddr = eth_src unless eth_src.nil?
  pkt.eth_daddr = eth_dst unless eth_dst.nil?
  pkt.eth_proto = eth_proto
  # IPv6 Header
  pkt.ipv6_v = ipv6_v
  pkt.ipv6_hl = ipv6_hl
  pkt.ipv6_tos = ipv6_tos
  pkt.ipv6_len = ipv6_len
  pkt.ipv6_id = ipv6_id
  pkt.ipv6_frag = ipv6_frag
  pkt.ipv6_saddr = ipv6_saddr
  pkt.ipv6_daddr = ipv6_daddr
  # ICMPv6 Header
  pkt.icmpv6_type = icmpv6_type
  pkt.icmpv6_code = icmpv6_code
  pkt.icmpv6_sum = icmpv6_sum
  # Payload
  pkt.payload = payload if payload

  pkt
rescue StandardError => e
  raise e
end

.construct_ip(opts = {}) ⇒ Object

Supported Method Parameters

pkt = PWN::Plugins::Packet.construct_ip(

ip_saddr: 'required - source ip of packet',
ip_daddr: 'required - destination ip to send packet',
payload: 'optional - packet payload defaults to empty string',
ip_id: 'optional - defaults to 0xfeed',
iface: 'optional - interface to send packet (defaults to eth0)',

)



597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
 
# File 'lib/pwn/plugins/packet.rb', line 597

public_class_method def self.construct_ip(opts = {})
  # Ethernet Header
  eth_src = opts[:eth_src]
  eth_dst = opts[:eth_dst]

  if opts[:eth_proto]
    eth_proto = opts[:eth_proto]
  else
    eth_proto = 0x0800 # IPv4
  end

  # IP Header
  if opts[:ip_v]
    ip_v = opts[:ip_v]
  else
    ip_v = 4
  end

  if opts[:ip_hl]
    ip_hl = opts[:ip_hl]
  else
    ip_hl = 5
  end

  if opts[:ip_tos]
    ip_tos = opts[:ip_tos]
  else
    ip_tos = 0
  end

  if opts[:ip_len]
    ip_len = opts[:ip_len]
  else
    ip_len = 20
  end

  if opts[:ip_id]
    ip_id = opts[:ip_id]
  else
    ip_id = 0xfeed
  end

  if opts[:ip_frag]
    ip_frag = opts[:ip_frag]
  else
    ip_frag = 0
  end

  if opts[:ip_ttl]
    ip_ttl = opts[:ip_ttl]
  else
    ip_ttl = 32
  end

  if opts[:ip_proto]
    ip_proto = opts[:ip_proto]
  else
    ip_proto = -1
  end

  if opts[:ip_sum]
    ip_sum = opts[:ip_sum]
  else
    ip_sum = 0xffff
  end

  ip_saddr = opts[:ip_saddr]
  ip_daddr = opts[:ip_daddr]

  # Payload
  payload = opts[:payload]

  pkt = PacketFu::IPPacket.new(config: PacketFu::Utils.whoami?)
  # Ethernet Header
  pkt.eth_saddr = eth_src unless eth_src.nil?
  pkt.eth_daddr = eth_dst unless eth_dst.nil?
  pkt.eth_proto = eth_proto
  # IP Header
  pkt.ip_v = ip_v
  pkt.ip_hl = ip_hl
  pkt.ip_tos = ip_tos
  pkt.ip_len = ip_len
  pkt.ip_id = ip_id
  pkt.ip_frag = ip_frag
  pkt.ip_ttl = ip_ttl
  pkt.ip_proto = ip_proto
  pkt.ip_sum = ip_sum
  pkt.ip_saddr = ip_saddr
  pkt.ip_daddr = ip_daddr
  # Payload
  pkt.payload = payload if payload

  pkt
rescue StandardError => e
  raise e
end

.construct_ipv6(opts = {}) ⇒ Object

Supported Method Parameters

pkt = PWN::Plugins::Packet.construct_ipv6(

ip_saddr: 'required - source ip of packet',
ip_daddr: 'required - destination ip to send packet',
payload: 'optional - packet payload defaults to empty string',
ip_id: 'optional - defaults to 0xfeed',
iface: 'optional - interface to send packet (defaults to eth0)',

)



703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
 
# File 'lib/pwn/plugins/packet.rb', line 703

public_class_method def self.construct_ipv6(opts = {})
  # Ethernet Header
  eth_src = opts[:eth_src]
  eth_dst = opts[:eth_dst]

  if opts[:eth_proto]
    eth_proto = opts[:eth_proto]
  else
    eth_proto = 0x86dd # IPv6
  end

  # IPv6 Header
  if opts[:ipv6_v]
    ipv6_v = opts[:ipv6_v]
  else
    ipv6_v = 6
  end

  if opts[:ipv6_class]
    ipv6_class = opts[:ipv6_class]
  else
    ipv6_class = 0
  end

  if opts[:ipv6_label]
    ipv6_label = opts[:ipv6_label]
  else
    ipv6_label = 0
  end

  if opts[:ipv6_len]
    ipv6_len = opts[:ipv6_len]
  else
    ipv6_len = 0
  end

  if opts[:ipv6_next]
    ipv6_next = opts[:ipv6_next]
  else
    ipv6_next = 0
  end

  if opts[:ipv6_hop]
    ipv6_hop = opts[:ipv6_hop]
  else
    ipv6_hop = 255
  end

  ipv6_saddr = opts[:ipv6_saddr]
  ipv6_daddr = opts[:ipv6_daddr]

  # Payload
  payload = opts[:payload]

  pkt = PacketFu::IPv6Packet.new(config: PacketFu::Utils.whoami?)
  # Ethernet Header
  pkt.eth_saddr = eth_src unless eth_src.nil?
  pkt.eth_daddr = eth_dst unless eth_dst.nil?
  pkt.eth_proto = eth_proto
  # IPv6 Header
  pkt.ipv6_v = ipv6_v
  pkt.ipv6_hl = ipv6_hl
  pkt.ipv6_tos = ipv6_tos
  pkt.ipv6_len = ipv6_len
  pkt.ipv6_id = ipv6_id
  pkt.ipv6_frag = ipv6_frag
  pkt.ipv6_saddr = ipv6_saddr
  pkt.ipv6_daddr = ipv6_daddr
  # Payload
  pkt.payload = payload if payload

  pkt
rescue StandardError => e
  raise e
end

.construct_tcp(opts = {}) ⇒ Object

Supported Method Parameters

pkt = PWN::Plugins::Packet.construct_tcp(

ip_saddr: 'required - source ip of packet',
ip_daddr: 'required - destination ip to send packet',
payload: 'optional - packet payload defaults to empty string',
ip_id: 'optional - defaults to 0xfeed',
iface: 'optional - interface to send packet (defaults to eth0)',

)



788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
 
# File 'lib/pwn/plugins/packet.rb', line 788

public_class_method def self.construct_tcp(opts = {})
  # Ethernet Header
  eth_src = opts[:eth_src]
  eth_dst = opts[:eth_dst]

  if opts[:eth_proto]
    eth_proto = opts[:eth_proto]
  else
    eth_proto = 0x0800 # IPv4
  end

  # IP Header
  if opts[:ip_v]
    ip_v = opts[:ip_v]
  else
    ip_v = 4
  end

  if opts[:ip_hl]
    ip_hl = opts[:ip_hl]
  else
    ip_hl = 5
  end

  if opts[:ip_tos]
    ip_tos = opts[:ip_tos]
  else
    ip_tos = 0
  end

  if opts[:ip_len]
    ip_len = opts[:ip_len]
  else
    ip_len = 20
  end

  if opts[:ip_id]
    ip_id = opts[:ip_id]
  else
    ip_id = 0xfeed
  end

  if opts[:ip_frag]
    ip_frag = opts[:ip_frag]
  else
    ip_frag = 0
  end

  if opts[:ip_ttl]
    ip_ttl = opts[:ip_ttl]
  else
    ip_ttl = 32
  end

  if opts[:ip_proto]
    ip_proto = opts[:ip_proto]
  else
    ip_proto = 6 # TCP
  end

  if opts[:ip_sum]
    ip_sum = opts[:ip_sum]
  else
    ip_sum = 0xffff
  end

  ip_saddr = opts[:ip_saddr]
  ip_daddr = opts[:ip_daddr]

  # TCP Header
  tcp_src_port = opts[:tcp_src_port]
  tcp_dst_port = opts[:tcp_dst_port]

  if opts[:tcp_seq]
    tcp_seq = opts[:tcp_seq]
  else
    tcp_seq = 0x5fcea416
  end

  if opts[:tcp_ack]
    tcp_ack = opts[:tcp_ack]
  else
    tcp_ack = 0x00000000
  end

  if opts[:tcp_hlen]
    tcp_hlen = opts[:tcp_hlen]
  else
    tcp_hlen = 5
  end

  if opts[:tcp_reserved]
    tcp_reserved = opts[:tcp_reserved]
  else
    tcp_reserved = 0
  end

  if opts[:tcp_ecn]
    tcp_ecn = opts[:tcp_ecn]
  else
    tcp_ecn = 0
  end

  tcp_flags = opts[:tcp_flags]

  if opts[:tcp_win]
    tcp_win = opts[:tcp_win]
  else
    tcp_win = 16_384
  end

  if opts[:tcp_sum]
    tcp_sum = opts[:tcp_sum]
  else
    tcp_sum = 0x1ab2
  end

  if opts[:tcp_urg]
    tcp_urg = opts[:tcp_urg]
  else
    tcp_urg = 0
  end

  tcp_opts = opts[:tcp_opts]

  # Payload
  payload = opts[:payload]

  pkt = PacketFu::TCPPacket.new(config: PacketFu::Utils.whoami?)
  # Ethernet Header
  pkt.eth_saddr = eth_src unless eth_src.nil?
  pkt.eth_daddr = eth_dst unless eth_dst.nil?
  pkt.eth_proto = eth_proto
  # IP Header
  pkt.ip_v = ip_v
  pkt.ip_hl = ip_hl
  pkt.ip_tos = ip_tos
  pkt.ip_len = ip_len
  pkt.ip_id = ip_id
  pkt.ip_frag = ip_frag
  pkt.ip_ttl = ip_ttl
  pkt.ip_proto = ip_proto
  pkt.ip_sum = ip_sum
  pkt.ip_saddr = ip_saddr
  pkt.ip_daddr = ip_daddr
  # TCP Header
  pkt.tcp_src = tcp_src_port if tcp_src_port
  pkt.tcp_dst = tcp_dst_port if tcp_dst_port
  pkt.tcp_seq = tcp_seq
  pkt.tcp_ack = tcp_ack
  pkt.tcp_hlen = tcp_hlen
  pkt.tcp_reserved = tcp_reserved
  pkt.tcp_ecn = tcp_ecn
  pkt.tcp_flags = PacketFu::TcpFlags.new
  pkt.tcp_win = tcp_win
  pkt.tcp_sum = tcp_sum
  pkt.tcp_urg = tcp_urg
  pkt.tcp_opts = PacketFu::TcpOptions.new
  # Payload
  pkt.payload = payload if payload

  pkt
rescue StandardError => e
  raise e
end

.construct_udp(opts = {}) ⇒ Object

Supported Method Parameters

pkt = PWN::Plugins::Packet.construct_udp(

ip_saddr: 'required - source ip of packet',
ip_daddr: 'required - destination ip to send packet',
payload: 'optional - packet payload defaults to empty string',
ip_id: 'optional - defaults to 0xfeed',
iface: 'optional - interface to send packet (defaults to eth0)',

)



963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
 
# File 'lib/pwn/plugins/packet.rb', line 963

public_class_method def self.construct_udp(opts = {})
  # Ethernet Header
  eth_src = opts[:eth_src]
  eth_dst = opts[:eth_dst]

  if opts[:eth_proto]
    eth_proto = opts[:eth_proto]
  else
    eth_proto = 0x0800 # IPv4
  end

  # IP Header
  if opts[:ip_v]
    ip_v = opts[:ip_v]
  else
    ip_v = 4
  end

  if opts[:ip_hl]
    ip_hl = opts[:ip_hl]
  else
    ip_hl = 5
  end

  if opts[:ip_tos]
    ip_tos = opts[:ip_tos]
  else
    ip_tos = 0
  end

  if opts[:ip_len]
    ip_len = opts[:ip_len]
  else
    ip_len = 20
  end

  if opts[:ip_id]
    ip_id = opts[:ip_id]
  else
    ip_id = 0xfeed
  end

  if opts[:ip_frag]
    ip_frag = opts[:ip_frag]
  else
    ip_frag = 0
  end

  if opts[:ip_ttl]
    ip_ttl = opts[:ip_ttl]
  else
    ip_ttl = 32
  end

  if opts[:ip_proto]
    ip_proto = opts[:ip_proto]
  else
    ip_proto = 17 # UDP
  end

  if opts[:ip_sum]
    ip_sum = opts[:ip_sum]
  else
    ip_sum = 0xffff
  end

  ip_saddr = opts[:ip_saddr]
  ip_daddr = opts[:ip_daddr]

  # UDP Header
  udp_src_port = opts[:udp_src_port]
  udp_dst_port = opts[:udp_dst_port]

  if opts[:udp_len]
    udp_len = opts[:udp_len]
  else
    udp_len = 8
  end

  if opts[:udp_sum]
    udp_sum = opts[:udp_sum]
  else
    udp_sum = 0xffde
  end

  # Payload
  payload = opts[:payload]

  pkt = PacketFu::UDPPacket.new(config: PacketFu::Utils.whoami?)
  # Ethernet Header
  pkt.eth_saddr = eth_src unless eth_src.nil?
  pkt.eth_daddr = eth_dst unless eth_dst.nil?
  pkt.eth_proto = eth_proto
  # IP Header
  pkt.ip_v = ip_v
  pkt.ip_hl = ip_hl
  pkt.ip_tos = ip_tos
  pkt.ip_len = ip_len
  pkt.ip_id = ip_id
  pkt.ip_frag = ip_frag
  pkt.ip_ttl = ip_ttl
  pkt.ip_proto = ip_proto
  pkt.ip_sum = ip_sum
  pkt.ip_saddr = ip_saddr
  pkt.ip_daddr = ip_daddr
  # UDP Header
  pkt.udp_src = udp_src_port if udp_src_port
  pkt.udp_dst = udp_dst_port if udp_dst_port
  pkt.udp_len = udp_len
  pkt.udp_sum = udp_sum
  # Payload
  pkt.payload = payload if payload

  pkt
rescue StandardError => e
  raise e
end

.help ⇒ Object

Display Usage for this Module



1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
 
# File 'lib/pwn/plugins/packet.rb', line 1206

public_class_method def self.help
  puts "USAGE:
    pcap = #{self}.open_pcap_file(
      path: 'required - path to packet capture file'
    )
    pcap[0].public_methods
    pcap.each do |p|
      print \"IP ID: \#{p.ip_id_readable} \"
      print \"IP Sum: \#{p.ip_sum_readable} \"
      print \"SRC IP: \#{p.ip_src_readable} \"
      print \"SRC MAC: (\#{p.eth_src_readable}) \"
      print \"TCP SRC PORT: \#{p.tcp_sport} => \"
      print \"DST IP: \#{p.ip_dst_readable} \"
      print \"DST MAC: (\#{p.eth_dst_readable}) \"
      print \"TCP DST PORT: \#{p.tcp_dport} \"
      print \"ETH PROTO: \#{p.eth_proto_readable} \"
      print \"TCP FLAGS: \#{p.tcp_flags_readable} \"
      print \"TCP ACK: \#{p.tcp_ack_readable} \"
      print \"TCP SEQ: \#{p.tcp_seq_readable} \"
      print \"TCP SUM: \#{p.tcp_sum_readable} \"
      print \"TCP OPTS: \#{p.tcp_opts_readable} \"
      puts \"BODY: \#{p.hexify(p.payload)}\"
      puts \"\\n\\n\\n\"
    end

    pkt = #{self}.construct_arp(
      ip_saddr: 'required - source ip of packet',
      ip_daddr: 'required - destination ip to send packet',
      payload: 'optional - packet payload defaults to empty string',
      ip_id: 'optional - defaults to 0xfeed',
      iface: 'optional - interface to send packet (defaults to eth0)',
    )

    pkt = #{self}.construct_eth(
      ip_saddr: 'required - source ip of packet',
      ip_daddr: 'required - destination ip to send packet',
      payload: 'optional - packet payload defaults to empty string',
      ip_id: 'optional - defaults to 0xfeed',
      iface: 'optional - interface to send packet (defaults to eth0)',
    )

    pkt = #{self}.construct_hsrp(
      ip_saddr: 'required - source ip of packet',
      ip_daddr: 'required - destination ip to send packet',
      payload: 'optional - packet payload defaults to empty string',
      ip_id: 'optional - defaults to 0xfeed',
      iface: 'optional - interface to send packet (defaults to eth0)',
    )

    pkt = #{self}.construct_icmp(
      ip_saddr: 'required - source ip of packet',
      ip_daddr: 'required - destination ip to send packet',
      payload: 'optional - packet payload defaults to \"*ping*\"',
      ip_id: 'optional - defaults to 0xfeed',
      iface: 'optional - interface to send packet (defaults to eth0)',
    )

    pkt = #{self}.construct_icmpv6(
      ip_saddr: 'required - source ip of packet',
      ip_daddr: 'required - destination ip to send packet',
      payload: 'optional - packet payload defaults to empty string',
      ip_id: 'optional - defaults to 0xfeed',
      iface: 'optional - interface to send packet (defaults to eth0)',
    )

    pkt = #{self}.construct_ip(
      ip_saddr: 'required - source ip of packet',
      ip_daddr: 'required - destination ip to send packet',
      payload: 'optional - packet payload defaults to empty string',
      ip_id: 'optional - defaults to 0xfeed',
      iface: 'optional - interface to send packet (defaults to eth0)',
    )

    pkt = #{self}.construct_ipv6(
      ip_saddr: 'required - source ip of packet',
      ip_daddr: 'required - destination ip to send packet',
      payload: 'optional - packet payload defaults to empty string',
      ip_id: 'optional - defaults to 0xfeed',
      iface: 'optional - interface to send packet (defaults to eth0)',
    )

    pkt = #{self}.construct_tcp(
      ip_saddr: 'required - source ip of packet',
      ip_daddr: 'required - destination ip to send packet',
      payload: 'optional - packet payload defaults to empty string',
      ip_id: 'optional - defaults to 0xfeed',
      iface: 'optional - interface to send packet (defaults to eth0)',
    )

    pkt = #{self}.construct_udp(
      ip_saddr: 'required - source ip of packet',
      ip_daddr: 'required - destination ip to send packet',
      payload: 'optional - packet payload defaults to empty string',
      ip_id: 'optional - defaults to 0xfeed',
      iface: 'optional - interface to send packet (defaults to eth0)',
    )

    #{self}.send(
      pkt: 'required - pkt returned from other #construct_<type> methods',
      iface: 'optional - interface to send packet (defaults to eth0)',
    )

    #{self}.authors
  "
end

.open_pcap_file(opts = {}) ⇒ Object

Supported Method Parameters

pcap = PWN::Plugins::Packet.open_pcap_file(

path: 'required - path to packet capture file'

)



25
26
27
28
29
30
31
 
# File 'lib/pwn/plugins/packet.rb', line 25

public_class_method def self.open_pcap_file(opts = {})
  path = opts[:path].to_s.scrub.strip.chomp if File.exist?(opts[:path].to_s.scrub.strip.chomp)

  PacketFu::PcapFile.read_packets(path)
rescue StandardError => e
  raise e
end

.send(opts = {}) ⇒ Object

Supported Method Parameters

PWN::Plugins::Packet.send(

pkt: 'required - pkt returned from other #construct_<type> methods',
iface: 'optional - interface to send packet (defaults to eth0)',

)



1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
 
# File 'lib/pwn/plugins/packet.rb', line 1087

public_class_method def self.send(opts = {})
  pkt = opts[:pkt]

  if opts[:iface]
    iface = opts[:iface].to_s.scrub.strip.chomp
  else
    iface = 'eth0'
  end

  if pkt.instance_of?(PacketFu::TCPPacket)
    this_ip = Socket.ip_address_list.detect(&:ipv4_private?).ip_address

    # If we're not passing a RST packet, prevent kernel from sending its own
    if this_ip == pkt.ip_saddr && pkt.tcp_flags.rst.zero?
      # We have to prevent the kernel space from sending a RST
      # because it won't have a socket open on the respective
      # port number before we have a chance to do anything.
      # In other words, the kernel will receive a SYN-ACK first,
      # know it didn't send a SYN & send a RST as a result.

      my_os = PWN::Plugins::DetectOS.type
      case my_os
      when :linux
        system_resp = system(
          'sudo',
          'iptables',
          '-C',
          'OUTPUT',
          '--protocol',
          'tcp',
          '--source',
          pkt.ip_saddr,
          '--destination',
          pkt.ip_daddr,
          '--destination-port',
          pkt.tcp_dst.to_s,
          '--tcp-flags',
          'RST',
          'RST',
          '-j',
          'DROP',
          out: File::NULL,
          err: File::NULL
        )

        unless system_resp
          puts 'Preventing kernel from misbehaving when manipulating packets.'
          system(
            'sudo',
            'iptables',
            '-A',
            'OUTPUT',
            '--protocol',
            'tcp',
            '--source',
            pkt.ip_saddr,
            '--destination',
            pkt.ip_daddr,
            '--destination-port',
            pkt.tcp_dst.to_s,
            '--tcp-flags',
            'RST',
            'RST',
            '-j',
            'DROP'
          )
        end

        pkt.recalc
        pkt.to_w(iface)

        system(
          'sudo',
          'iptables',
          '-D',
          'OUTPUT',
          '--protocol',
          'tcp',
          '--source',
          pkt.ip_saddr,
          '--destination',
          pkt.ip_daddr,
          '--destination-port',
          pkt.tcp_dst.to_s,
          '--tcp-flags',
          'RST',
          'RST',
          '-j',
          'DROP'
        )
      # when :osx
      #   ipfilter = 'pfctl'
      #   ipfilter_rule = "block out proto tcp from #{pkt.ip_saddr} to #{pkt.ip_daddr} port #{pkt.tcp_dst} flags R"
      #   system(ipfilter, "pfctl_add_flag #{ipfilter_rule}")
      #   pkt.recalc
      #   pkt.to_w(iface)
      #   system(ipfilter, "pfctl_del_flag #{ipfilter_rule}")
      else
        raise "ERROR: #{self} Does not Support #{my_os}"
      end
    end
  else
    pkt.recalc
    pkt.to_w(iface)
  end
rescue StandardError => e
  raise e
end