Web Wiz NewsPad Directory traversal

2008.01.29
Credit: AmnPardaz
Risk: Low
Local: No
Remote: Yes
CWE: N/A


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: None
Availability impact: None

########################## WwW.BugReport.ir ########################################### # # 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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