Firewall Wizards mailing list archives
Re: source port specific port scan
From: "Steven M. Bellovin" <smb () research att com>
Date: Sun, 14 Oct 2001 11:21:54 -0400
In message <20011012213339.9420.qmail () web12302 mail yahoo com>, Rich Wilson wri tes:
Does anyone know of a port scanner that allows you to specify the source port? I'm trying to test a filter that allows outbound only SMTP. My worry is that it is not stateful, and that an attacker using a source port of 25 can bypass the filter.
Use the -g option to nmap. --Steve Bellovin, http://www.research.att.com/~smb Full text of "Firewalls" book now at http://www.wilyhacker.com _______________________________________________ firewall-wizards mailing list firewall-wizards () nfr com http://list.nfr.com/mailman/listinfo/firewall-wizards
Current thread:
- Re: source port specific port scan, (continued)
- Re: source port specific port scan R. DuFresne (Oct 15)
- Re: source port specific port scan Barney Wolff (Oct 15)
- Re: source port specific port scan m p (Oct 15)
- Re: source port specific port scan Oscar Wahlberg (Oct 15)
- Re: source port specific port scan Charles Swiger (Oct 15)
- Re: source port specific port scan Jose Nazario (Oct 15)
- Re: source port specific port scan Jose Nazario (Oct 15)
- Message not available
- Re: source port specific port scan Dom Glavach (Oct 15)
- Re: source port specific port scan Ben Eisenbraun (Oct 15)
- RE: source port specific port scan robert_david_graham (Oct 15)
- Re: source port specific port scan Steven M. Bellovin (Oct 15)