adminbugreport.ir
Date: Wed Jan 23 2008 - 01:34:33 CST

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########################## WwW.BugReport.ir
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#
# AmnPardaz Security Research Team
#
# Title: Web Wiz NewsPad(TM)
# Vendor: http://www.webwizguide.com/
# Bug: Directory traversal
# Vulnerable Version: 1.02
# Exploit: Available
# Fix Available: No! Fast Solution is available.
###################################################################################

####################
- Description:
####################
Web Wiz NewsPad is an advanced but easy to use Email Newsletter and
Website News Bulletin software.

####################
- Vulnerability:
####################
Input passed to the FolderName parameter in "RTE_file_browser.asp" is
not properly sanitised before being used. This can be exploited to
list directories, list txt and list zip files through directory
traversal attacks.
Also, "RTE_file_browser.asp" does not check user's session and an
unauthenticated attacker can perform this attack.

-POC:
http://[WebWiz
NewsPad]/RTE_file_browser.asp?look=&sub=\.....\\\.....\\\.....\\\

####################
- Fast Solution :
####################
You can see below lines in "RTE_file_browser.asp"

        'Stip path tampering for security reasons
        strSubFolderName = Replace(strSubFolderName, "../", "", 1, -1, 1)
        strSubFolderName = Replace(strSubFolderName, "..\", "", 1, -1, 1)
        strSubFolderName = Replace(strSubFolderName, "./", "", 1, -1, 1)
        strSubFolderName = Replace(strSubFolderName, ".\", "", 1, -1, 1)

Only add this to them:
        strSubFolderName = Replace(strSubFolderName, "/", "\", 1, -1, 1)
        strSubFolderName = Replace(strSubFolderName, "\\", "\", 1, -1, 1)
        strSubFolderName = Replace(strSubFolderName, "..", "", 1, -1, 1)

####################
- Credit :
####################
Original Advisory: http://www.bugreport.ir/?/30
AmnPardaz Security Research & Penetration Testing Group
Contact: admin[4t}bugreport{d0t]ir
WwW.BugReport.ir
WwW.AmnPardaz.com

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