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forward mapping (#148)

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Sorry for the delay! Thanks for the patch!
This commit is contained in:
dmitriy-myz
2016-06-15 13:38:14 +04:00
committed by Michel Oosterhof
parent bb935ca707
commit 9ffeba80ec
2 changed files with 35 additions and 22 deletions
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26
cowrie.cfg.dist
View File

@@ -95,14 +95,6 @@ interact_enabled = false
# (default: 5123)
interact_port = 5123
#SMTP forwarding.
#
#If you want to record SMTP traffic, install SMTP honeypoint.
# (e.g https://github.com/awhitehatter/mailoney)
# python mailoney.py -s yahoo.com -t schizo_open_relay -p 12525
smtp_forwarding_enabled = false
smtp_forwarding_port = 12525
smtp_forwarding_host = 127.0.0.1
# ============================================================================
# Network Specific Options
@@ -370,3 +362,21 @@ logfile = log/cowrie.json
#api_key = 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
#
# Port forward mapping.
#
# Mapped port will be realy forwarded to new address
# Useful for forwarding some protocols to other honeypots
#
[forward_mapping]
# Comma separated port list
ports = no
# ports = 80,443,25,587
port_80 = 127.0.0.1:8080
port_443 = 127.0.0.1:8443
# If you want to record SMTP traffic, install SMTP honeypoint.
# (e.g https://github.com/awhitehatter/mailoney), run
# python mailoney.py -s yahoo.com -t schizo_open_relay -p 12525
# uncomment
# ports = 25,587
port_25 = 127.0.0.1:12525
port_587 = 127.0.0.1:12525

31
cowrie/ssh/forwarding.py
View File

@@ -14,26 +14,29 @@ def CowrieOpenConnectForwardingClient(remoteWindow, remoteMaxPacket, data, avata
"""
"""
cfg = avatar.cfg
if cfg.has_option('forward_mapping', 'ports') and \
cfg.get('forward_mapping', 'ports').lower() not in \
('false', 'no'):
mappedPortsComma = cfg.get('forward_mapping', 'ports').split(',')
mappedPorts = [int(x.strip()) for x in mappedPortsComma]
else:
mappedPorts = []
remoteHP, origHP = twisted.conch.ssh.forwarding.unpackOpen_direct_tcpip(data)
log.msg(eventid='cowrie.direct-tcpip.request',
format='direct-tcp connection request to %(dst_ip)s:%(dst_port)s from %(src_ip)s:%(src_port)s',
dst_ip=remoteHP[0], dst_port=remoteHP[1],
src_ip=origHP[0], src_port=origHP[1])
if cfg.has_option('honeypot', 'smtp_forwarding_enabled') and \
cfg.get('honeypot', 'smtp_forwarding_enabled').lower() in \
('yes', 'true', 'on'):
honey_smtp = True
honey_port = int(cfg.get('honeypot', 'smtp_forwarding_port'))
honey_host = cfg.get('honeypot', 'smtp_forwarding_host')
else:
honey_smtp = False
if (remoteHP[1] == 25 or remoteHP[1] == 587) and honey_smtp:
portRule = 'port_{dst_port}'.format(dst_port=remoteHP[1])
if remoteHP[1] in mappedPorts \
and cfg.has_option('forward_mapping', portRule):
newAddr = cfg.get('forward_mapping', portRule)
newIp = newAddr.split(':')[0].strip()
newPort = int(newAddr.split(':')[1].strip())
remoteHPNew = (newIp, newPort)
log.msg(eventid='cowrie.direct-tcpip.request',
format='found smtp, forwarding to local honeypot')
remoteHPLocal = (honey_host, honey_port)
return forwarding.SSHConnectForwardingChannel(remoteHPLocal,
format='found custom port, forwarding to %(new_ip)s:%(new_port)s',
new_ip=newIp, new_port=newPort)
return forwarding.SSHConnectForwardingChannel(remoteHPNew,
remoteWindow=remoteWindow, remoteMaxPacket=remoteMaxPacket,
avatar=avatar)