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Common Intrusion Detection Framework

Common Intrusion Detection Framework. By Ganesh Godavari. Paper to review. Intrusion Detection Inter-component Adaptive Negotiation Richard Feiertag et al 2000 IEEE Computer Networks special issue on intrusion detection

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Common Intrusion Detection Framework

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  1. Common Intrusion Detection Framework By Ganesh Godavari

  2. Paper to review Intrusion Detection Inter-component Adaptive Negotiation Richard Feiertag et al 2000 IEEE Computer Networks special issue on intrusion detection A theoretical paper on the possibility of intrusion detection systems automatically negotiating the information they share.

  3. Goal • The Intrusion Detection System (IDS) community is developing better techniques for collecting and analyzing data in order to handle intrusions in large, distributed environments • Goal of IDIAN • Develop a negotiation protocol that is dynamic • Allow distributed collection of heterogeneous ID components • Provide inter-operate ability to reach agreement on ID information processing capability

  4. Motivation • How does IDIAN fit in Distributed and large scale deployment? • What can we learn from the project? • Does it fit to what we want to do?

  5. Challenges in large scale network • Challenges in large scale deployment • Reinforcing • Repetition of the same node • Complementing • One node complements the role of another • Example - Node-a does TCP/IP sniffing Node-b does application attacks on ftpd, httpd

  6. Review CIDF architectecture consumer Producer

  7. Reinforcing • E-box 1, E-box 2 may detect same kind attacks but run on different machines. Negotiation will take place with the machine that advertises first? Not clear lets make this assumption. E-box 1 192.168.0.1 Gateway R-Box E-box 2 192.168.0.2 A-Box

  8. Complementing • E-box 1, E-box 2 may detect different attacks but run on different machines. E-box 1 192.168.0.2 Gateway R-Box E-box 2 192.168.1.2 A-Box

  9. Snort based E-box 1 Ad filter ( SendMessage ( when (Time "!-::*")) ( Initiator (IPV4Address "!+::{*}") ( HostName "?-::{*}") ( TCPSourcePort "!-::{*}")) ( Target ( IPV4Address "!-::{*}) ( HostName "?-::{*}") ( TCPDestinationPort "!-::{*}")) ( Observer ( ProcessName "!-::{{'snort'}}") ( HostName "!-::{{'hercales'}}")) ( Message ( TransportProtocol "?+::{{'tcp'}}") ( IPV4SetviceType "?+::{*}") ( IPV4Identifier "?+::{*}") ( IPV4TTL "?+::{*}") ( TCPSequenceNumber "?+::{*}") ( TCPAckNumber "?+::{*}") ( TCPWindow "?+::{*}") ( TCPFlags "?+::{*}") ( TCPMSS "?+::{*}";))))) ( Filter ( Fragment ( ByMeansOf ( Attack ( when (Time "!+::*")) ( AttackSpecifics ( Attack-ID "!-::{{0x00000005}}", "!+::{*}") ( AtackNickname "!-::{*}")) ( Initiator "!+::{*}") (IPV4Address "!+::{*}") ( HostName "?-::{*}") ( TCPSourcePort "!-::{*}")) ( Target ( IPV4Address "!+::{{10.0.0.1,10.0.0.2}, {10.0.0.3,10.0.0.4}}) ( HostName "?-::{*}") ( TCPDestinationPort "!-::{*}")) ( Observer ( ProcessName "!-::{{'snort'}}") ( HostName "!-::{{'hercales'}}"))) !: field always available ?: field might or might not be available -: field is not negotiable +: field is negotiable continued

  10. A-box Template proposal ( Filter ( Fragment ( Attack ( When ( Time "!-::*")) ( AttackSpecifics ( Attack-ID "!-::{{0x00000005}}", "!+::{0x00000000,0x000000001}") ( AtackNickname "!-::{*}")) ( Initiator ( IPV4Address "!+::{*}") ( TCPSourcePort "!-::{*}")) ( Target ( IPV4Address "!+::{{10.0.0.1,10.0.0.3,10.0.1.18}) ( TCPDestinationPort "!-::{*}")) ( Observer ( ProcessName "?+::{*}") ( HostName "?+::{*}") ( IPv4Address "?+::{*}")))) ( Permit, ''ByMeansOf', 'And', ''HelpedCause')) Permit allows the filter matching code to search for GIDO from the root. So here we are looking for fragment like “ByMeansOf”, “And”, “HelpedCause”

  11. Snort based E-box 2 Ad filter ( SendMessage ( when (Time "!-::*")) ( Initiator (IPV4Address "!+::{*}") ( HostName "?-::{*}") ( TCPSourcePort "!-::{*}")) ( Target ( IPV4Address "!-::{*}) ( HostName "?-::{*}") ( TCPDestinationPort "!-::{*}")) ( Observer ( ProcessName "!-::{{'snort'}}") ( HostName "!-::{{'hercalesGlobe'}}")) ( Message ( TransportProtocol "?+::{{'tcp'}}") ( IPV4SetviceType "?+::{*}") ( IPV4Identifier "?+::{*}") ( IPV4TTL "?+::{*}") ( TCPSequenceNumber "?+::{*}") ( TCPAckNumber "?+::{*}") ( TCPWindow "?+::{*}") ( TCPFlags "?+::{*}") ( TCPMSS "?+::{*}";))))) ( Filter ( Fragment ( ByMeansOf ( Attack ( when (Time "!+::*")) ( AttackSpecifics ( Attack-ID "!-::{{0x00000005}}", "!+::{*}") ( AtackNickname "!-::{*}")) ( Initiator "!+::{*}") (IPV4Address "!+::{*}") ( HostName "?-::{*}") ( TCPSourcePort "!-::{*}")) ( Target ( IPV4Address "!+::{10.0.1.0/8}) ( HostName "?-::{*}") ( TCPDestinationPort "!-::{*}")) ( Observer ( ProcessName "!-::{{'snort'}}") ( HostName "!-::{{'hercalesGlobe'}}"))) !: field always available ?: field might or might not be available -: field is not negotiable +: field is negotiable continued

  12. Candidate proposal A-box to E-box 1 ( Filter ( Fragment ( Attack ( When ( Time "!-::*")) ( AttackSpecifics ( Attack-ID "!-::{{0x00000005}}", "!+::{0x00000000,0x000000001}") ( AtackNickname "!-::{*}")) ( Initiator ( IPV4Address "!+::{*}") ( TCPSourcePort "!-::{*}")) ( Target ( IPV4Address "!+::{{10.0.0.1,10.0.0.3}}) ( TCPDestinationPort "!-::{*}")) ( Observer ( ProcessName "!+::{{'snort'}}") ( HostName "!-::{'heracles'}}"))))))

  13. Candidate proposal A-box to E-box 2 ( Filter ( Fragment ( Attack ( When ( Time "!-::*")) ( AttackSpecifics ( Attack-ID "!-::{{0x00000005}}", "!+::{0x00000000,0x000000001}") ( AtackNickname "!-::{*}")) ( Initiator ( IPV4Address "!+::{*}") ( TCPSourcePort "!-::{*}")) ( Target ( IPV4Address "!+::{10.0.1.0/8}) ( TCPDestinationPort "!-::{*}")) ( Observer ( ProcessName "!+::{{'snort'}}") ( HostName "!-::{'heraclesGlobe'}}"))))))

  14. Possible GIDO from E-box to A-box E-box 2 ( ByMeansOf ( Attack ( when ( time "10/04-16:21:48")) ( AttackSpecifics ( Attack-ID 0x00000005, 0x000000000) ( AttackNickname "NMAP TCP Ping")) ( Initiator ( IPV4Address 10.0.0.2) ( TCPSourcePort 52716)) ( Target ( IPV4Address 10.0.1.5) ( TCPDestinationPort 39241)) ( Observer (ProcessName 'snort') (HostName 'heraclesGlobe'))) E-box 1 ( ByMeansOf ( Attack ( when ( time "10/04-16:21:48")) ( AttackSpecifics ( Attack-ID 0x00000005, 0x000000000) ( AttackNickname "NMAP TCP Ping")) ( Initiator ( IPV4Address 10.0.0.2) ( TCPSourcePort 52716)) ( Target ( IPV4Address 10.0.0.5) ( TCPDestinationPort 39241)) ( Observer (ProcessName 'snort') (HostName 'heracles')))

  15. Questions ?

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