SecurityReason - Multiple vulnerabilities in PostNuke 0.760-RC4b=>x ( Research Advisory )

Advisory Text :

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[Multiple vulnerabilities in PostNuke 0.760-RC4b=>x cXIb8O3.15]

Author: Maksymilian Arciemowicz ( cXIb8O3 )
Date: 22.8.2005
from SECURITYREASON.COM

- --- 0.Description ---

PostNuke: The Phoenix Release (0.750)

PostNuke is an open source, open developement content management system
(CMS). PostNuke started as a fork from PHPNuke (http://www.phpnuke.org) and
provides many enhancements and improvements over the PHP-Nuke system.
PostNuke
is still undergoing development but a large number of core functions are
now
stabilising and a complete API for third-party developers is now in place.
If you would like to help develop this software, please visit our homepage
at http://noc.postnuke.com/
You can also visit us on our IRC Server irc.postnuke.com channel
#postnuke-support
#postnuke-chat
#postnuke
Or at the Community Forums located at:
http://forums.postnuke.com/

- --- 1. Sql injection in Download ---

This sql injection is non critical because exploit works only with admin
rights (mysql).

The problem is in "modules/Downloads/dl-viewdownload.php".

- --------
if ($show!="") {
$perpage = $show;
} else {
$show=$perpage;
}
...
$result =& $dbconn->SelectLimit($sql,$perpage,$min);
- --------

varible $perpage.

So
http://[HOST]/[DIR]/index.php?name=Downloads&req=viewdownload&cid=1&show=[S
QL%20INJECTION]

- --- 2. XSS ---

2.0
http://[HOST]/[DIR]/index.php?module=Comments&req=moderate&moderate=<center
><h1>xss

2.1
http://cxib.server/PostNuke-0.760-RC4b/html/user.php?op=edituser&htmltext=<
h1>xss

- --- 3. How to fix ---

Download the new version of the script or update.

- --- 4. Greets ---

sp3x

- --- 5.Contact ---
Author: Maksymilian Arciemowicz < cXIb8O3 >
Email: max [at] jestsuper [dot] pl or cxib [at] securityreason [dot] com
GPG-KEY: securityreason.com TEAM
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