[members-discuss] Technical solution to resolve Spoofed IP traffic, Spoofed amplification DDoS attacks, BGP&RIR hijacking, IoT botnet infections and Botnet C&Cs
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Cynthia Revström
me at cynthia.re
Thu Apr 30 22:57:00 CEST 2020
Please no more "technical solutions" on members-discuss! - Cynthia On Thu, Apr 30, 2020 at 10:31 PM Elad Cohen <elad at netstyle.io> wrote: > Hello Ripe Members! > > I will share the following solution in the near General Meeting and I'm > interested to share the following technical solution with you as well, it > will completely resolve: Spoofed IP traffic, Spoofed amplification DDoS > attacks, BGP&RIR hijacking. And will dramatically lower: IoT botnet > infections and Botnet C&Cs. > > By a single update to any BGP router, not any router needs to be updated, > only active BGP routers. If I will have the honor of being elected to the > Ripe Board I will harness all the power of Ripe and all of the 5 RIR's and > all of the LIR's in the 5 RIR's so routing manufacturing companies will > implement the below processes and methods with a single firmware update to > their BGP routers. > > I'm asking for your support in electing me so I will be able to enter the > Ripe Board and then I will be able to make everything which is written in > this post to come true. > > > Regarding the bgp-anycasted infrastructure written below, ICANN is written > but the global bgp-anycasted infrastructure can be managed by the 5 RIR's > and/or by the ccTLDs registries (my main point is that who will operate the > bgp-anycasted infrastructure is not important for now, as long as it will > be an agreed authoritative non-governmental non-commercial global > entity/ies) > > With new tracking protocol over ip, routers will be able to confirm that > source ip came from the network of the announcing ASN, and hence spoofed > amplification DDoS attacks will be completely annihilated. > > > The Process: > > At the source BGP router, for any ip packet with a source address that is > from the network of the source BGP router (lets call it original ip packet) > - the source BGP router will create a new ip packet (lets call it tracking > ip packet) with a new transport layer protocol and with the same source > address and with the same destination address and with the same IP-ID such > as the original ip packet. > > In the new tracking ip packet there will be a new transport layer protocol > (tracking protocol) with the following fields: > AS number of source BGP router in clear text > AS number of source BGP router encrypted with the private key of the > source BGP router > > The destination BGP router (a BGP router that the destination address is > in its network) whenever it receive a 'tracking ip packet' will check if > its have the internal boolean 'Check tracking flag' in it - 'on' or 'off': > If 'off' then the destination BGP router will drop that 'tracking ip > packet' > > If 'on' then the destination BGP router will decrypt the 'encrypted AS > number' with the public key of the specific AS number > and after decryption the AS number need to be the result: > if not then to drop the tracking ip packet and the original ip packet > related to it > if yes then to drop the tracking ip packet and to forward the related > original ip packet to destination but only if the source address is > originated from the specific ASN (according to the local ASNs+ranges table > in the BGP router, such table will be received from ICANN) > > > If the 'Check tracking flag' is set to 'on' then any original ip packet > that arrive to the destination BGP router will wait for the related > tracking ip packet (in case the related tracking ip packet didn't already > arrived to the destination BGP router). The destination BGP router will > manage such waiting for X number of seconds. > > The destination BGP router will match between a tracking ip packet and an > original ip packet - based on their source address and their destination > address and their IP-ID which will all be identical. > > > > More Aspects: > > - The end-devices will not need to be updated, any router will not need to > be updated, only all the BGP routers will need to be updated. > - Any BGP router in the routing path, which the original ip packet and the > tracking ip packet are not destined to an ip address in its own network - > will not check the content of the tracking ip packet and will forward both > the tracking ip packet and the original ip packet as they are. > - Each BGP router will have all the public keys (of all the ASN's) locally. > - Each BGP router will have a full list of all the ASN's and all the route > objects ranges which are related to them locally. > > > > How BGP routers will receive all the ranges in all the route objects of > all the ASNs (in the 5 RIRs) and all the public keys of all the ASNs (for > decrypting the encrypted strings in 'tracking ip packets'): > > - Each BGP router will create a tcp session with ICANN backend > infrastructure (the backend infrastructure of ICANN will use BGP anycast > and will be available from many locations worldwide with automatic syncing) > - At this stage there will be a handshake process between the BGP router > and the ICANN backend infrastructure in order for ICANN to know the correct > ASN which is operating the BGP router - the BGP router will send its ASN in > cleartext and also its ASN encrypted with its > ICANN-communication-private-key , ICANN will know the related public key > for the specific ASN from the specific ASN object in the RIR (the public > key for communication with ICANN will be displayed there) - after > decryption ICANN will compare the decrypted string to the AS Number for > successful authentication. > - After successful authentication, all the communication will be > encrypted, ICANN will notify the BGP router about its public key and ICANN > will use the public key of the ASN for the communication with ICANN - from > the ASN object in the RIR. > - The BGP router will send over the session its public key to be used by > other BGP routers in order to decrypt the encrypted string in the tracking > ip packets that it will originate (that private key and public key will be > managed in the BGP router GUI or CLI). > - ICANN will notify all the other BGP routers through the sessions with > them about a newly updated such public key of any other BGP router. > - ICANN will also receive in real-time any route object > creation/modification/deletion notification from any of the 5 RIRs and will > then update all the BGP routers through all of their sessions. > > - In case a BGP router doesn't have an active session to ICANN backend > infrastructure (for any reason, might be due to networking issue) - then > temporarily the internal 'Check tracking flag' of it will be set to 'off'. > After the session with ICANN backend infrastructure will be re-established > and the BGP router will receive all the meantime updates - the boolean > value of 'Check internal flag' will return to initial state. > - Any update from ICANN backend infrastructure to a BGP router (such as a > public key of another BGP router, or a routing object update) - will be > confirmed that the update was received well by the BGP router side. > > > > 'Check tracking flag' in BGP Routers: > > - BGP routers, in their GUI and CLI interfaces - will not allow the > end-user to set the boolean value of 'Check tracking flag', in order to > avoid misconfiguration. > - The ICANN backend infrastructure through the session with the BGP router > - will be able to set the boolean value of the 'Check tracking flag'. > - The reason for it, is that if 'Check tracking flag' will be set on some > destination BGP routers while some other source BGP routers weren't > upgraded yet (and will not send the 'tracking ip packet' due to it) - then > 'tracking ip packet' will never reach the destination BGP router and the > internet will break. > - Central setting of 'Check tracking flag' through ICANN backend > infrastructure - will allow ICANN to inform all the BGP routers at once to > switch 'on' the 'Check tracking flag' > - ICANN, in the session to any BGP router, will also receive the > percentage of ip packets that were destained to that BGP router network - > that also had ip tracking packets, in this way ICANN will know when all the > BGP routers were properly globally updated and when it is time to enable > the 'Check tracking flag' in all the BGP routers. > - ICANN will know if all the BGP routers in the world were upgraded based > on keeping the full BGP table and comparing it to all the BGP routers that > did and that did not open a session to ICANN backend infrastructure. > > > > Automatic preventation of IoT botnet infections: > > - IoT botnets are based on default credentials, if we can block default > credentials of IoT devices then these kind of botnets (such as > Mirai-variants and similar) will stop to have an impact in the internet. > - The data field in an ip packet - will always be the same for an access > attempt to a IoT device with default credentials - hence these kind of "IP > protocol data fingerprints" which are related to specific "IP protocol > numbers" will be provided by ICANN backend infrastructure to each BGP > router through the opened session with it. > - There are two issues with matching incoming ip packets to the "locally > stored IP protocol data fingerprints" - the first one is that ip packets > can be sent by fragments (so not all the data field will be sent at once in > order to be able to be compared with the locally stored data fingerprints) > and the second is that usernames (or url's) or any other textual data in > the incoming ip packet data field can be in uppercase or in lowercase. In > order to overcome the possibility of the existence of a single data > fingerprint in multiple incoming ip packet fragments - then in case the BGP > router is recognizing the incoming fragmented ip packet data value as part > of an existing fingerprint data in its local database then it will keep > track of the arrival ip packet fragments based on their specific IP-ID > identifier and the BGP router will not forward the last ip packet fragment > if the last ip packet fragment will cause all the related ip packet > fragments to match a specific ip fingerprint data (last ip packet doesn't > have to be the last fragmented part but it is the last ip packet that > arrived with that IP-ID identifier, so the BGP router will keep track of > the specific fragmented IP packets that arrived and their indexes in order > to know when the last one of them arrived). Regarding the second issue - > the stored data fingerprints in the local BGP router will be stored in a > way that some bytes of them (in specific indexes) will not be compared and > in case all the other bytes will match - then the bytes in these indexes - > will first be lowered case - and only then comparison will be made to the > specific indexed bytes in the specific ip packet data fingerprint. > - In case a IoT device behind a BGP router will be infected somehow (for > example when a specific fingerprint data with default credentials for a > specific device wasn't updated yet through ICANN backend infrastructure), > it will be able to infect all the other IoT devices in the local network > when the connectivity to them is not through the BGP router, that kind of > impact will be much much lower than infected IoT device which can infect > any other IoT device in the internet and then massive botnets in the > internet are created which are being used for DDoS. > > > > Automatic prevention of botnet C&C ip addresses: > > - Botnets C&C are also a problem in the internet. > - This problem can be overcome using the following technical addition: the > 5 RIR's will operate end-users honeypots machines all over the world (it > will be implemented by a single physical machine in each location, for > example in each datacenter and in each major ISP, each single physical > machine will emulate a virtual router and virtual VM's, the virtual VM's > will emulate many different kinds of 'real world machines', any kind of > automatic updating (in the operating system configurations) will be > disabled, these honeypots machines are not intended to make any outgoing > connection, the virtual routers will monitor if any outgoing connection is > made and if yes then it is to a botnet C&C, the virtual router will update > the ICANN backend infrastructure regarding it and the ICANN backend > infrastructure will update all the BGP routers (in their open sessions) > regarding it to completely block any communication to that botnet C&C ip > address. There will be a web-based system and only the related Law > Enforcement Agency of that C&C ip address region - will be able to remove > that C&C ip address from being blocked after their manual check. > - Honeypot machines will be deployed using 'templates' - these templates > must be signed and not anyone can create them, they should be created and > signed by an agreed Law Enforcement Agency such as Interpol in order to > make sure that these templates are by-design not making any outgoing > connection. The templates will be deployed in an automatic way (major ISP's > and datacenters will be able to easily add a 'physical honeypot' server in > their network, that will be shipped to them), the re-initiation of a > compromised 'virtual machine' that made an outgoing connection - will also > be automatic through the system in the physical server. > > > Respectfully, > Elad > > _______________________________________________ > members-discuss mailing list > members-discuss at ripe.net > https://lists.ripe.net/mailman/listinfo/members-discuss > Unsubscribe: > https://lists.ripe.net/mailman/options/members-discuss/me%40cynthia.re > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.ripe.net/ripe/mail/archives/members-discuss/attachments/20200430/8ddea245/attachment.html>
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