Re: [Full-disclosure] Apache Killer

["-= Glowing Sex =-" <doomxd@xxxxxxxxx>]

Ciao davide,
Very nice , thanks for the submittal and thoughts regarding thisissue, all
of it is handy..
Only problem with these patches, unless you look at the advisory/and or
patch and see exactly what needs to be filteed, only then maybe can have a
really tough regex, wich btw would be VERY cool and handy.!
Good line of thinking anyhow. Props.
xd


On 24 August 2011 18:03, Davide Guerri <davide.guerri@xxxxxxxxx> wrote:

> While waiting for an official patch, how about the following workaround?
>
> > RewriteEngine On
> > RewriteCond %{REQUEST_METHOD} ^(HEAD|GET) [NC]
> > RewriteCond %{HTTP:Range} ([0-9]*-[0-9]*)(\s*,\s*[0-9]*-[0-9]*)+
> > RewriteRule .* - [F]
>
>
> The workaround uses modrewrite to forbid get|head requests with multiple
> ranges in the Range HTTP header.
> The second regex could be improved but it works for the exploit released so
> far...
>
> Cheers,
>  Davide.
>
>
> On 24/ago/2011, at 08:01, -= Glowing Sex =- wrote:
>
> > This is handy to read for anyone who runs apache... its worth a look...
> thx kcope ;>
> > xd
> >
> >
> > On 24 August 2011 13:26, HI-TECH . <
> isowarez.isowarez.isowarez@xxxxxxxxxxxxxx> wrote:
> > Hello list,
> > oops looks like this bug has nothing to do with mod_deflate/mod_gzip,
> > read on here where the apache team is resolving the issue:
> >
> > http://www.gossamer-threads.com/lists/apache/dev/401638
> >
> > Cheers,
> >
> > Kingcope
> >
> > 2011/8/20 Moritz Naumann <security@xxxxxxxxxxxxxxxxxx>:
> > > On 20.08.2011 00:23 HI-TECH . wrote:
> > >> (see attachment)
> > >> /Kingcope
> > >
> > > Works (too) well here. Are there any workarounds other than rate
> > > limiting or detecting + dropping the traffic IPS-wise?
> > >
> > > Moritz
> > >
> >
> > _______________________________________________
> > Full-Disclosure - We believe in it.
> > Charter: http://lists.grok.org.uk/full-disclosure-charter.html
> > Hosted and sponsored by Secunia - http://secunia.com/
> >
> > _______________________________________________
> > Full-Disclosure - We believe in it.
> > Charter: http://lists.grok.org.uk/full-disclosure-charter.html
> > Hosted and sponsored by Secunia - http://secunia.com/
>
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
> Hosted and sponsored by Secunia - http://secunia.com/
>

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/