National Cyber-Alert System
Vulnerability Summary for CVE-2008-3842
Original release date:08/27/2008
Last revised:01/29/2009
Source:
US-CERT/NIST
Overview
Request Validation (aka the ValidateRequest filters) in ASP.NET in Microsoft .NET Framework without 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 slash) sequence.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Allows unauthorized modification
References to Advisories, Solutions, and Tools
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External Source: XF
Name: asp-validaterequest-xss(44741)
External Source: BUGTRAQ
Name: 20080821 PR08-20: Bypassing ASP .NET "ValidateRequest" for Script Injection Attacks
External Source: MISC
Name: http://www.procheckup.com/PDFs/bypassing-dot-NET-ValidateRequest.pdf
External Source: SREASON
Name: 4193
