🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.dcom.sys.cisco
Article #2258

Re: IOS exploit: please disclose vehicle, not mechanism

#2258
From: jankemi(remove)
Date: Fri, 25 Jul 2003 01:21
32 lines
2527 bytes
Bill Johnston wrote:
> 
> by noting in italics that:
> 
> "ACLs can have performance impact on certain platforms, 
> so care should be taken when applying the recommended 
> workarounds."
>

We have input ACL's on our edge routers anyway, to block RFC1918 
addresses & various other unwanted protocols. We added 3-4 more lines to 
those lists. I've always assumed that most organizations already have 
some kind of ingress ACL. Maybe not though?

Our experience has been that ACL processing is not a major problem on 
our platforms (72xx's, 36xx's and 26xx's).

> Not the information that I was asking for, Mike.

You asked for the vehicle. I though that 'Multiple IPv4 packets with 
specific protocol fields sent directly to the device' was the vehicle.

Perhaps you consider that the mechanism?

> 
> Politely, my young man.
> 

I'm not intending to be rude. If I'm short it's because I'm too lazy to 
type long messages.

> - Bill
Technical Details
Message-ID: <3F208459.6030804@mail.com>
Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!headwall.stanford.edu!newshub.sdsu.edu!elnk-nf2-pas!newsfeed.earthlink.net!wn14feed!worldnet.att.net!204.127.198.203!attbi_feed3!attbi_feed4!attbi.com!rwcrnsc51.ops.asp.att.net.POSTED!not-for-mail
References: <Xns93C1BACF3C55Awdjohnstoncomcastnet@206.127.4.25> <LqFTa.116237$wk6.30285@rwcrnsc52.ops.asp.att.net> <Xns93C294B29ED49wdjohnstoncomcastnet@206.127.4.25>

Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: f922c,536b22101f44acbf
X-Google-Attributes: gidf922c,public
X-Google-Thread: 102702,536b22101f44acbf
X-Google-Attributes: gid102702,public
X-Google-Thread: 114395,536b22101f44acbf
X-Google-Attributes: gid114395,public
X-Google-ArrivalTime: 2003-07-24 18:21:15 PST
Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!newsfeed.stanford.edu!headwall.stanford.edu!newshub.sdsu.edu!elnk-nf2-pas!newsfeed.earthlink.net!wn14feed!worldnet.att.net!204.127.198.203!attbi_feed3!attbi_feed4!attbi.com!rwcrnsc51.ops.asp.att.net.POSTED!not-for-mail
Message-ID: <3F208459.6030804@mail.com>
From: "jankemi(remove)" <"jankemi(remove)"@mail.com>
User-Agent: Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.4) Gecko/20030701
X-Accept-Language: en-us, en
MIME-Version: 1.0
Newsgroups: comp.dcom.sys.cisco,ios.general,comp.security.firewalls
Subject: Re: IOS exploit: please disclose vehicle, not mechanism
References: <Xns93C1BACF3C55Awdjohnstoncomcastnet@206.127.4.25> <LqFTa.116237$wk6.30285@rwcrnsc52.ops.asp.att.net> <Xns93C294B29ED49wdjohnstoncomcastnet@206.127.4.25>
In-Reply-To: <Xns93C294B29ED49wdjohnstoncomcastnet@206.127.4.25>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
Lines: 33
NNTP-Posting-Host: 24.245.5.3
X-Complaints-To: abuse@comcast.net
X-Trace: rwcrnsc51.ops.asp.att.net 1059096074 24.245.5.3 (Fri, 25 Jul 2003 01:21:14 GMT)
NNTP-Posting-Date: Fri, 25 Jul 2003 01:21:14 GMT
Organization: Comcast Online
Date: Fri, 25 Jul 2003 01:21:14 GMT