by r0t,der4444,cembo,VietMafia

Tuesday, December 06, 2005

NetAuctionHelp v3.0 XSS Vuln

NetAuctionHelp v3.0 XSS Vuln
Vuln. dicovered by : r0t
Date: 6 dec. 2005
vendor:http://www.netauctionhelp.com/
affected version:v3.0 and prior

Product Description:
NetAuctionHelp provides auction site source code and managed hosting solutions for the Windows platform. Our auction sites are packed with features for the bidder, seller, and administrator. Our solutions include both complete source code for use on a single web site, and managed hosting solutions for those needing hosting.

Vuln. Description:
NetAuctionHelp contains a flaw that allows a remote cross site scripting attack. This flaw exists because input passed to the "L","sort","category","categoryname" paremters in "search.asp" isn't properly sanitised before being returned to the user.
This could allow a user to create a specially crafted URL that would execute arbitrary code in a user's browser within the trust relationship between the browser and the server, leading to a loss of integrity.

examples:
/search.asp?sort=ed&L=[XSS]
/search.asp?sort=[XSS]
/search.asp?sort=ed&L=1&category=[XSS]
/search.asp?sort=ed&L=1&category=65&categoryname=[XSS]

Solution:
Edit the source code to ensure that input is properly sanitised.

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