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Penetration Testing: Re: Fwd: Re: spoofing 255.255.255.255 techniques

Re: Fwd: Re: spoofing 255.255.255.255 techniques

From: Jason Ackley <jason_at_ackley.net>
Date: Fri, 6 Jul 2001 13:50:55 -0700 (PDT)

On Fri, 6 Jul 2001, MIKE DONOFRIO wrote:

> Just FYI
>
> Using ACL's does limit the information you get to the Syslog server
> compared to what you would get using Conduits. Cisco was supposed to
> be working on a fix for it. On Revisions of code before 5.3.1 you
> would just get Protocol XX (ie 6,17,1) and no port.. At least after
> 5.3.1 you get TCP,UDP... I have contacted Cisco several times on this
> issue and I get the "Next Release" responce :) Anyone know if this is
> fixed in 6.0?
>

Is this message %PIX-4-106023 you are asking about?

 A 6.0(1) deny (by acl/access-group) example looks like:

%PIX-4-106023: Deny tcp src intf2:7.81.50.9/2560 dst
inside:62.18.9.1/22 by access-group "in_mylist"

(IPs randomized to protect the guilty).

 This is on a PIX that does not have names
 on its interfaces.. I have not seen any
 bcast/mcast traffic on this device to see what
 it logs..

 Now that the ACL log entries provide enough information, we can all
 migrate away from conduit style configs per cisco docs.. woohoo..

cheers,

--
jason
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Received on Jul 07 2001
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