CVE-2008-3843: XSS
First published: Wed Aug 27 2008(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows NT | =2003-gold | |
| Microsoft Windows NT | =2003-sp1 | |
| Microsoft Windows NT | =2003-sp1 | |
| Microsoft Windows NT | =2003-sp2 | |
| Microsoft Windows NT | =2003-sp2 | |
| Microsoft Windows NT | =2003-sp2 | |
| Microsoft Windows NT | =2008 | |
| Microsoft Windows NT | =xp-gold | |
| Microsoft Windows NT | =xp-gold | |
| Microsoft Windows NT | =xp-gold | |
| Microsoft Windows NT | =xp-sp3 | |
| Microsoft Windows 2000 | =sp4 | |
| Microsoft Windows Vista | ||
| Microsoft Windows Vista | =sp1 | |
| Microsoft Windows XP | =sp2 | |
| Microsoft Windows XP | =sp2 | |
| Microsoft .NET Framework | =1.0-sp3 | |
| Microsoft Windows NT | =2008 | |
| Microsoft Windows NT | =2008 | |
| Microsoft Windows NT | =vista-sp1 | |
| Microsoft Windows Vista | =gold | |
| Microsoft .NET Framework | =1.1-sp1 | |
| Microsoft .NET Framework | =2.0 |
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Reference Links
- http://www.procheckup.com/PDFs/bypassing-dot-NET-ValidateRequest.pdf
- http://www.procheckup.com/Vulnerability_PR08-20.php
- http://securityreason.com/securityalert/4193
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44743
- http://www.securityfocus.com/archive/1/496071/100/0/threaded
- http://www.securityfocus.com/archive/1/495667/100/0/threaded
Frequently Asked Questions
What is the severity of CVE-2008-3843?
CVE-2008-3843 has a medium severity rating due to its potential for cross-site scripting (XSS) attacks.
How do I fix CVE-2008-3843?
To mitigate CVE-2008-3843, ensure you have applied the appropriate patches from Microsoft to update your .NET Framework.
What systems are affected by CVE-2008-3843?
CVE-2008-3843 affects various versions of Microsoft .NET Framework, particularly around applications using the ValidateRequest feature.
Can CVE-2008-3843 be exploited remotely?
Yes, CVE-2008-3843 can be exploited remotely by attackers using specially crafted input.
What types of attacks are associated with CVE-2008-3843?
CVE-2008-3843 is primarily associated with cross-site scripting (XSS) attacks, which can lead to session hijacking or data theft.
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