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wwf-traverse.txt

wwf-traverse.txt
Posted Jan 24, 2008
Authored by AmnPardaz Security Research Team | Site bugreport.ir

Web Wiz Forums version 9.07 suffers from a directory traversal vulnerability.

tags | exploit, web, file inclusion
SHA-256 | cde46cc496ac4ad5dac5e1978785370ef4fa729d9de4a7cdae9be6700db350cd

wwf-traverse.txt

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########################## WwW.BugReport.ir  
###########################################
#
# AmnPardaz Security Research Team
#
# Title: Web Wiz Forums(TM)
# Vendor: http://www.webwizguide.com/
# Bug: Directory traversal
# Vulnerable Version: 9.07
# Exploit: Available
# Fix Available: No! Fast Solution is available.
###################################################################################


####################
- Description:
####################
Web Wiz Forums bulletin board system is the ideal forum package for
your website's community.

####################
- Vulnerability:
####################
Input passed to the FolderName parameter in "RTE_file_browser.asp" and
"file_browser.asp" are 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 Forum]/RTE_file_browser.asp?look=&sub=\.....\\\.....\\\.....\\\


####################
- Fast Solution :
####################
You can see below lines in "RTE_file_browser.asp" and "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/?/29
AmnPardaz Security Research & Penetration Testing Group
Contact: admin[4t}bugreport{d0t]ir
WwW.BugReport.ir
WwW.AmnPardaz.com


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