bugtraq - Re: Is predictable spam filtering a vulnerability?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <200406181151000530.052DC75B@sendmail.burge.com>
Date: Fri, 18 Jun 2004 11:51:00 -0700
From: "Bill Burge" <bill@...ge.com>
To: bugtraq@...urityfocus.com
Subject: Re: Is predictable spam filtering a vulnerability?

This is nothing new to spam filtering.  Any dynamic/proactive filter mechanism is subject to the sam shenanigans.

This has been a "feature" of IntrusionPreventionSystems since they came out.  Spoof an attack from an IP you want to be denied, and the IDS updates the ruleset on the firewall (what a IPS really is, an IDS talking to a firewall) and that third party can't get past that perimeter.

bburge
someguy who does this kinda stuff

*********** REPLY SEPARATOR  ***********

On 6/17/2004 at 7:27 PM Joel Eriksson wrote:

>On Wed, Jun 16, 2004 at 01:26:28PM +0200, R Armiento wrote:
>[snip]
>> For example: attacker 'A' sends 'B' a social engineering request
>> for "the secret plans" and says "if you are unsure, forward my
>> request to your boss and ask if this is okay". 'B' forwards the
>> email to his boss 'C' and asks "Is this okay?". However, 'C':s
>> spam filter silently drops the email. 'A' forges a reply from
>> 'C' saying: "Sure, no problem, go ahead."
>
>Many will probably discard the above as farfetched or ignore it
>since it's not a "real" vulnerability that gives remote root to
>the attacker, I think it's beautiful though. :)
>
>Security is a state of mind, a way of thinking. Vulnerabilities
>are all around us and the one you point out above is certainly
>one of them.
>
>> Regards,
>> R. Armiento
>
>-- 
>Best Regards,
>   Joel Eriksson
>-------------------------------------------------
>Cellphone: +46-70 228 64 16 Home: +46-26-10 23 37
>Security Research & Systems Development at Bitnux
>PGP Key Server pgp.mit.edu, PGP Key ID 0x08811B44
>DF38 5806 0EFB 196E E4B6 34B5 4C01 73BB 0881 1B44
>-------------------------------------------------