Re: 17494 Falsing on non IE6 systems

[Joel Esler <jesler () sourcefire com>]

That's an idea, I'll look into it.

Thanks.

Joel

On Oct 27, 2010, at 9:07 AM, Weir, Jason wrote:

> Thanks Joel,
>
> Any chance the revision # could be included on the SID page
>
> http://www.snort.org/search/sid/1-17494
>
> That way I could check before posting to the list..
>
> -J
>
> > -----Original Message-----
> > From: Joel Esler [mailto:jesler () sourcefire com] 
> > Sent: Wednesday, October 27, 2010 9:02 AM
> > To: L0rd Ch0de1m0rt
> > Cc: Weir, Jason; snort-sigs () lists sourceforge net
> > Subject: Re: [Snort-sigs] 17494 Falsing on non IE6 systems
> >
> >
> > Current revision on this rule is rev:3.  It looks nothing 
> > like the below.
> >
> > Thanks for the feedback Jason.
> >
> > Joel
> >
> > On Oct 27, 2010, at 8:51 AM, L0rd Ch0de1m0rt wrote:
> >
> > > Yea, this is a terribly written rule, especially with Web 2.0 
> > > technologies and advertising companies preferring to create 
> > ginormous 
> > > URIs.  It's not browser specific ... all modern browsers support
> > > URIs>206 bytes and the RFC doesn't specify a limit....
> > >
> > > Are you running the latest version of this rule?  I could 
> > be thinking 
> > > of a different rule but I thought that when this one came out it 
> > > everyone started complaining about it and they disabled it.  I 
> > > recommend all who are running it to disable it.
> > >
> > > -L0rd C.
> > >
> > > On Wed, Oct 27, 2010 at 7:37 AM, Weir, Jason <jason.weir () nhrs org> 
> > > wrote:
> > > > Tons of false positives on machines running IE7 & 8...
> > > >
> > > > Maybe do a content match on the IE6 user agent - something like 
> > > > content:"compatible; MSIE 6."
> > > >
> > > > alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS 
> > (msg:"WEB-CLIENT 
> > > > Microsoft Internet Explorer Long URL Buffer Overflow attempt"; 
> > > > flow:established,to_server; urilen:>260; content:"GET"; 
> > http_method; 
> > > > content:"HTTP|2F|1|2E|1|0D 0A|"; metadata:service http; 
> > > > reference:bugtraq,19667; reference:cve,2006-3869; 
> > > > classtype:attempted-user; sid:17494; rev:1;)
> > > >
> > > > Jason
>
>
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--
Joel Esler
302-223-5974


------------------------------------------------------------------------------
Nokia and AT&T present the 2010 Calling All Innovators-North America contest
Create new apps & games for the Nokia N8 for consumers in  U.S. and Canada
$10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing
Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store 
http://p.sf.net/sfu/nokia-dev2dev
_______________________________________________
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