Full Disclosure mailing list archives
denial of service on ISN list
From: "lsi" <stuart () cyberdelix net>
Date: Thu, 08 Jul 2004 10:17:46 +0100
I can't subscribe to ISN because their mail server thinks my mail server is a spammer. I can report that Pipex are one of the largest ISPs in the UK, and that this server might be used by hundreds of thousands of people. I put it to ISN that your system allows people to be kicked off the list. All I need to do is fake some spam from my enemy's SMTP to the list, and you block the entire server. When another of Pipex' 100,000 subscribers attempts to join, they are blocked too. Not good. Stu On 8 Jul 2004 at 1:59, Mail Delivery System wrote: Date sent: Thu, 8 Jul 2004 01:59:26 +0100 (BST) From: MAILER-DAEMON () pengo systems pipex net (Mail Delivery System) Subject: Undelivered Mail Returned to Sender To: stuart () cyberdelix net
This is the Postfix program at host pengo.systems.pipex.net. I'm sorry to have to inform you that the message returned below could not be delivered to one or more destinations. For further assistance, please send mail to <postmaster> If you do so, please include this problem report. You can delete your own text from the message returned below. The Postfix program <isn-request () attrition org>: host forced.attrition.org[66.80.146.7] said: 553 5.3.0 - 780 spammer or relay pengo.systems.pipex.net ESMTP Postfix (in reply to MAIL FROM command)
--- Stuart Udall stuart at () cyberdelix dot net - http://www.cyberdelix.net/ --- * Origin: lsi: revolution through evolution (192.168.0.2) _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
Current thread:
- denial of service on ISN list lsi (Jul 08)
- Re: denial of service on ISN list Ron DuFresne (Jul 08)
- <Possible follow-ups>
- Re: denial of service on ISN list security curmudgeon (Jul 08)