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 >-------------------------------------------------
