CVE-2008-3843 Information

Description

Request Validation (aka the ValidateRequest filters) in ASP.NET in Microsoft .NET Framework with the MS07-040 update does not properly detect dangerous client input which allows remote attackers to conduct cross-site scripting (XSS) attacks as demonstrated by a query string containing a ~/\ (less-than tilde slash) sequence followed by a crafted STYLE element.

Reference

http://securityreason.com/securityalert/4193 http://www.procheckup.com/PDFs/bypassing-dot-NET-ValidateRequest.pdf http://www.procheckup.com/Vulnerability_PR08-20.php http://www.securityfocus.com/archive/1/495667/100/0/threaded http://www.securityfocus.com/archive/1/496071/100/0/threaded https://exchange.xforce.ibmcloud.com/vulnerabilities/44743