Packet generation and network based attacks with Scapy - SecDev.org

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IP protocol scanIntroductionScapyNetwork discovery and attacksOne shotsScanningTTL tricksSend IP packets with every possible value in the protocol field.Protocol not recognized by the host =⇒ ICMP protocolunreachableBetter results if the IP payload is not emptySending packetsres,unans = sr( IP(dst="target", proto=(0,255))/"XX" )Possible result interpretation: recognized protocolsunans.nsummary(prn=lambda s:s.proto)Philippe BIONDIPacket generation and network based attacks with Scapy
IntroductionScapyNetwork discovery and attacksIP protocol scan with fixed TTLOne shotsScanningTTL tricksSend IP packets with every possible value in the protocol fieldand a well chosen TTLProtocol not filtered by the router =⇒ ICMP time exceededin transitSending packetsres,unans = sr( IP(dst="target", proto=(0,255),ttl=7)/"XX",retry=-2 )Possible result interpretation: filtered protocolsunans.nsummary(prn=lambda s:s.proto)Philippe BIONDIPacket generation and network based attacks with Scapy
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IntroductionScapyNetwork discovery
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OutlineIntroductionScapyNetwork dis
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OutlineIntroductionScapyNetwork dis
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The GenesisThe spark that lit the p
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Actual ArchitectureIntroductionScap
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Pretty printingIntroductionScapyNet
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SendingIntroductionScapyNetwork dis
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Page 88 and 89: IntroductionScapyNetwork discovery
Page 108 and 109: Result ManipulationIntroductionScap
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Page 144 and 145: NAT findingIntroductionScapyNetwork
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Packet generation and network based attacks with Scapy - SecDev.org

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