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COMMAND MakeBid cross site scripting vulnerability and insecure cookie usage SYSTEMS AFFECTED MakeBid Auction Deluxe Version 3.30 PROBLEM Blake Frantz posted : MakeBid Auction Deluxe is a commercial PERL CGI which allows web users to add items to an online auction. The following fields are not properly sanatized when placing a new item on auction: + City/State/Zip of new auction registrant + Title Descripton of new auction item + Item Description for new auction item This allows an attacker to place an item on auction with potentially malicious code in the description fields. Thus, being executed by simply viewing the item. MakeBid Auction Deluxe has the option of allowing the user to store their login credentials in a cookie. These credentials are stored in clear text. In conjunction these two vulnerabilities allow an attacker to steal the accounts of any auction participant that utilizes the \"save login\" option. An attacker can use the compromised account to place unauthorized bids, place items on auction as other users, and modify contact and payment information. This vulnerability also allows the attacker to gather personal information and partial credit card data from the affected accounts. SOLUTION Patch available for cross site scrippting specific bugs : http://www.netcreations.addr.com/auctiondeluxe.html