sctpscan

sctpscan Package Description

SCTPscan is a tool to scan SCTP enabled machines. Typically, these are Telecom oriented machines carrying SS7 and SIGTRAN over IP. Using SCTPscan, you can find entry points to Telecom networks. This is especially useful when doing pentests on Telecom Core Network infrastructures. SCTP is also used in high-performance networks (internet2).

Tools included in the sctpscan package

sctpscan – SCTP network scanner for discovery and security

root@kali:~# sctpscan
SCTPscan - Copyright (C) 2002 - 2009 Philippe Langlois.
SCTPscan comes with ABSOLUTELY NO WARRANTY; for details read the LICENSE or COPYING file.
Usage:  sctpscan [options]
Options:
  -p, --port <port>           (default: 10000)
      port specifies the remote port number
  -P, --loc_port <port>           (default: 10000)
      port specifies the local port number
  -l, --loc_host <loc_host>   (default: 127.0.0.1)
      loc_host specifies the local (bind) host for the SCTP
      stream with optional local port number
  -r, --rem_host <rem_host>   (default: 127.0.0.2)
      rem_host specifies the remote (sendto) address for the SCTP
      stream with optional remote port number
  -s  --scan -r aaa[.bbb[.ccc]]
      scan all machines within network
  -m  --map
      map all SCTP ports from 0 to 65535 (portscan)
  -F  --Frequent
      Portscans the frequently used SCTP ports
      Frequent SCTP ports: 1, 7, 9, 20, 21, 22, 80, 100, 128, 179, 260, 250, 443, 1167, 1812, 2097, 2000, 2001, 2010, 2011, 2020, 2021, 2100, 2110, 2120, 2225, 2427, 2477, 2577, 2904, 2905, 2906, 2907, 2908, 2909, 2944, 2945, 3000, 3097, 3565, 3740, 3863, 3864, 3868, 4000, 4739, 4740, 5000, 5001, 5060, 5061, 5090, 5091, 5672, 5675, 6000, 6100, 6110, 6120, 6130, 6140, 6150, 6160, 6170, 6180, 6190, 6529, 6700, 6701, 6702, 6789, 6790, 7000, 7001, 7102, 7103, 7105, 7551, 7626, 7701, 7800, 8000, 8001, 8471, 8787, 9006, 9084, 9899, 9911, 9900, 9901, 9902, 10000, 10001, 11146, 11997, 11998, 11999, 12205, 12235, 13000, 13001, 14000, 14001, 20049, 29118, 29168, 30000, 32905, 32931, 32768
  -a  --autoportscan
      Portscans automatically any host with SCTP aware TCP/IP stack
  -i  --linein
      Receive IP to scan from stdin
  -f  --fuzz
      Fuzz test all the remote protocol stack
  -B  --bothpackets
      Send packets with INIT chunk for one, and SHUTDOWN_ACK for the other
  -b  --both_checksum
      Send both checksum: new crc32 and old legacy-driven adler32
  -C  --crc32
      Calculate checksums with the new crc32
  -A  --adler32
      Calculate checksums with the old adler32
  -Z  --zombie
      Does not collaborate to the SCTP Collaboration platform. No reporting.
  -d  --dummyserver
      Starts a dummy SCTP server on port 10000. You can then try to scan it from another machine.
  -E  --exec <script_name>
      Executes <script_name> each time an open SCTP port is found.
      Execution arguments: <script_name> host_ip sctp_port
  -t  --tcpbridge <listen TCP port>
      Bridges all connection from <listen TCP port> to remote designated SCTP port.
  -S  --streams <number of streams>
      Tries to establish SCTP association with the specified <number of streams> to remote designated SCTP destination.

Scan port 9999 on 192.168.1.24
./sctpscan -l 192.168.1.2 -r 192.168.1.24 -p 9999

Scans for availability of SCTP on 172.17.8.* and portscan any host with SCTP stack
./sctpscan -s -l 172.22.1.96 -r 172.17.8

Scans frequently used ports on 172.17.8.*
./sctpscan -s -F -l 172.22.1.96 -r 172.17.8

Scans all class-B network for frequent port
./sctpscan -s -F -r 172.22 -l `ifconfig eth0 | grep 'inet addr:' |  cut -d: -f2 | cut -d ' ' -f 1 `

Simple verification end to end on the local machine:
./sctpscan -d &
./sctpscan -s -l 192.168.1.24 -r 192.168.1 -p 10000

This tool does NOT work behind most NAT.
That means that most of the routers / firewall don't know how to NAT SCTP packets.
You _need_ to use this tool from a computer having a public IP address (i.e. non-RFC1918)

sctpscan Usage Example

Scan (-s) for frequently used ports (-F) on the remote network (-r 192.168.1.*):

root@kali:~# sctpscan -s -F -r 192.168.1.*
SCTPscan - Copyright (C) 2002 - 2009 Philippe Langlois.
Netscanning with Crc32 checksumed packet
Portscanning Frequent Ports on 192.168.1.*.