wwrte-traverse.txt

`########################## WwW.BugReport.ir   
###########################################  
#  
# AmnPardaz Security Research Team  
#  
# Title: Web Wiz Rich Text Editor(TM)  
# Vendor: http://www.webwizguide.com/  
# Bug: Directory traversal + HTM/HTML file creation on the server  
# Vulnerable Version: 4.0  
# Exploit: Available  
# Fix Available: No! Fast Solution is available.  
###################################################################################  
  
  
####################  
- Description:  
####################  
Web Wiz Rich Text Editor (RTE) is a free WYSIWYG HTML Rich Text Editor   
that replaces standard textarea's with an advanced Word style HTMLarea.  
  
####################  
- 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.  
Moreover, by using "RTE_popup_save_file.asp" attacker can make his/her   
HTML or HTM file on the server, so this can be used in XSS attacks or   
making fake pages.  
  
-POC:  
http://[WebWiz   
RTE]/RTE_file_browser.asp?look=save&sub=\.....\\\.....\\\.....\\\.....\\\.....\\\  
http://[WebWiz RTE]/RTE_popup_save_file.asp  
  
####################  
- Fast Solution :  
####################  
1- 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)  
2- Rename "RTE_popup_save_file.asp" till main solution by vendor  
  
####################  
- Credit :  
####################  
Original Advisory: http://www.bugreport.ir/?/31  
AmnPardaz Security Research & Penetration Testing Group  
Contact: admin[4t}bugreport{d0t]ir  
WwW.BugReport.ir  
WwW.AmnPardaz.com  
  
  
`