Microsoft ASP.NET COM and COM+ w3wp.exe denial of service
| ms-aspnet-w3wp-dos (25392) |  Low Risk |
Description:
Multiple ASP.NET Web applications are vulnerable to a denial of service attack caused by improper referencing of COM and COM+ objects. If the Web application was written without using the ASPCompat directive, a remote attacker could send multiple URL requests to the affected Web page to cause the w3wp.exe process to fail or the Web server to crash.
Platforms Affected:
- Microsoft, .NET Framework 1.0
- Microsoft, .NET Framework 1.0 sp2
- Microsoft, .NET Framework 1.0 sp1
- Microsoft, .NET Framework 1.1
- Microsoft, .NET Framework 1.1 sp1
- Microsoft, Windows XP Professional
Remedy:
Developers of ASP.NET applications should set the @Page directive to <%@Page ASPCompat="true" %> in order to prevent this vulnerability. See References.
Consequences:
Denial of Service
References:
- Full-Disclosure Mailing List, Tue Mar 21 2006 - 19:58:21 CST, w3wp remote DoS due to improper reference of STA COM components in ASP.NET at http://archives.neohapsis.com/archives/fulldisclosure/2006-03/1421.html.
- Full-Disclosure Mailing List, Tue Mar 21 2006 - 20:17:09 CST, w3wp remote DoS at http://archives.neohapsis.com/archives/fulldisclosure/2006-03/1422.html.
- BID-17188: Microsoft ASP.NET COM Components W3WP Remote Denial Of Service Vulnerability
- CVE-2006-1364: Microsoft w3wp (aka w3wp.exe) does not properly handle when the AspCompat directive is not used when referencing COM components in ASP.NET, which allows remote attackers to cause a denial of service (resource consumption or crash) by repeatedly requesting each of several documents that refer to COM components, or are restricted documents located under the ASP.NET application path.
- SECTRACK ID: 1015825: Microsoft ASP.NET Incorrect COM Component Reference Lets Remote Users Deny Service
Reported:
Mar 22, 2006
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