Date: Mon, 30 Aug 2004 15:27:52 +0200 From: Luigi Pizzirani <l.pizzira@virgilio.it> To: ports@FreeBSD.org Subject: proposal of ports Message-ID: <20040830152752.4c968e56@worklab>
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This is a multi-part message in MIME format. --Multipart=_Mon__30_Aug_2004_15_27_52_+0200_/i=OrTZVK7=dz9s/ Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Hello, my name is Luigi and I am writing to you, because I would like you to take a look at two codes of mine. The first is a portscan spoofed that uses id bug discovered by Antirez to spoof our machine. This is an example of its use: worklab# ./spoofscan -a www.kernel.org -s 62.211.32.82 -l 78 -h 82 -n 6 -t 300000 Stealth Scan by Luigi Pizzirani. Warning!!! This is a stealth portscanner based on the requirements that the host we are using for our spoof has no traffic, has not random IP id and we have all firewalls down. Anyway, being this scanner stealth, it is far from being 100% reliable. Enjoy it. DISCLAIMER!!! IP SPOOFING, AS ANY KIND OF FORGEMENT IS AN ILLEGAL PRACTICE. USE THIS SCANNER ONLY FOR TESTING PURPOSES AND ON YOUR LOCAL AREANETWORK. IN NO EVENT I CONSIDER MYSELF LIABLE FOR ANY ABUSE OF THIS PROGRAM. Id sequence relative to 62.211.32.82: 564 565 566 567 568 569 It seems that host 62.211.32.82 has no traffic: excellent!!! Id sequence relative to port 78 of host www.kernel.org via 62.211.32.82: 570 571 572 573 574 575 Hmmm...looks like 78 is closed. Id sequence relative to port 79 of host www.kernel.org via 62.211.32.82: 576 577 579 581 583 585 Hmmm...looks like 79 is OPEN. Id sequence relative to port 80 of host www.kernel.org via 62.211.32.82: 594 595 597 599 600 602 Hmmm...looks like 80 is OPEN. Id sequence relative to port 81 of host www.kernel.org via 62.211.32.82: 612 613 614 615 616 617 Hmmm...looks like 81 is closed. Id sequence relative to port 82 of host www.kernel.org via 62.211.32.82: 618 619 620 621 622 623 Hmmm...looks like 82 is closed. Ports of www.kernel.org that look like open: 79(finger), 80(http). worklab# You can find a paper of it at http://www.securitydate.it/SD2004/ (sorry in Italian :-( , but if you are interested I will translate it) The second code is a sort of sniffer that that catches incoming ARP requests for a gateway and answers that the gateway is itself, so if for example we have a lan with one machine having IP 10.0.0.2 and default gateway 10.0.0.4, another with 1.2.3.4/1.2.3.6, and the real gw is 192.168.0.254 this tool(installed on the gateway 192.168.0.254) sniffs for example the arp request: "ARP who-has 1.2.3.6 tell 1.2.3.4" and replies to 1.2.3.4 with "ARP reply: 1.2.3.6 is-at my_mac_address" (a sort of ARP poisoning), then it creates the alias 1.2.3.254(ARP is not routable) and updates its own ARP cache with the couple 1.2.3.4/his_mac_address sending itself a ARP reply. This tool can be useful for example if a hotel wants to offer connectivity to customers coming with their laptop and not having DHCP configured, but their own IP address instead and they don't know/want to change their LAN parameters. With it they simply plug and go. It could be misunderstood with proxy ARP, but there are two fundamental differences: this one runs in uspace and unlikely proxy ARP that works only with two subnets, this one works with every one. I would be very happy if you take a look at these two codes and tell me your opinion and what do you think about eventually making the ports of them. Looking forward to have a reply my best regards. Luigi. --Multipart=_Mon__30_Aug_2004_15_27_52_+0200_/i=OrTZVK7=dz9s/ Content-Type: application/octet-stream; name="spoofscan.c" Content-Disposition: attachment; filename="spoofscan.c" Content-Transfer-Encoding: base64 LyoKICogJElkOiBzcG9vZnNjYW4uYyx2IDAuOSAyMDA0LzAzLzA2IDE3OjI5OjE3IHN2aWF0IEV4 cCAkCiAqIDxzcG9vZmVkIHN0ZWFsdGggcG9ydHNjYW5uZXI+CiAqCiAqIENvcHlyaWdodCAoYykg MjAwMiBMdWlnaSBQaXp6aXJhbmkgPGwucGl6emlyYUB2aXJnaWxpby5pdD4KICoKICogQWxsIHJp Z2h0cyByZXNlcnZlZC4KICoKICogUmVkaXN0cmlidXRpb24gYW5kIHVzZSBpbiBzb3VyY2UgYW5k IGJpbmFyeSBmb3Jtcywgd2l0aCBvciB3aXRob3V0CiAqIG1vZGlmaWNhdGlvbiwgYXJlIHBlcm1p dHRlZCBwcm92aWRlZCB0aGF0IHRoZSBmb2xsb3dpbmcgY29uZGl0aW9ucyBhcmUKICogbWV0OiAx LiBSZWRpc3RyaWJ1dGlvbnMgb2Ygc291cmNlIGNvZGUgbXVzdCByZXRhaW4gdGhlIGFib3ZlIGNv cHlyaWdodAogKiBub3RpY2UsIHRoaXMgbGlzdCBvZiBjb25kaXRpb25zIGFuZCB0aGUgZm9sbG93 aW5nIGRpc2NsYWltZXIuIDIuCiAqIFJlZGlzdHJpYnV0aW9ucyBpbiBiaW5hcnkgZm9ybSBtdXN0 IHJlcHJvZHVjZSB0aGUgYWJvdmUgY29weXJpZ2h0IG5vdGljZSwKICogdGhpcyBsaXN0IG9mIGNv 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