Multiple Vendor SOAP Server DTD Parameter Denial of Service - Secunia Advisories - Vulnerability Intelligence

Multiple Vendor SOAP Server DTD Parameter Denial of Service
Secunia Advisory:	SA10417	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2003-12-12
Popularity:	9,349 views

Critical:	Moderately critical
Impact:	DoS
Where:	From remote
Solution Status:	Vendor Patch

Software:	ASP.NET 1.x IBM WebSphere Application Server 5.x Microsoft .NET Framework 1.x

Subscribe:	Instant alerts on relevant vulnerabilities

Description: A vulnerability has been identified in various products, which can be exploited by malicious people to cause a DoS (Denial of Service). The vulnerability is caused due to an error in the XML parser when parsing the DTD (Document Type Definition) part of XML documents. This can be exploited by sending a specially crafted SOAP request, which causes a vulnerable SOAP server to consume all CPU resources for a longer period of time as well as large amounts of memory. The vulnerability affects the following products: * IBM WebSphere 5.0.0 * Microsoft ASP.NET Web Services (.NET framework 1.0, .NET framework 1.1) Solution: -- IBM WebSphere 5.0.0 -- Apply Fix Pack 1 or 2 (requires Update Installer). Fix Pack 1: http://www-1.ibm.com/support/docview.wss?rs=180&uid=swg24004576 Fix Pack 2: http://www-1.ibm.com/support/docview.wss?rs=180&uid=swg24005012 -- Microsoft ASP.NET Web Services -- Update to .NET Framework 1.1 and apply patch referenced at: http://support.microsoft.com/default.aspx?kbid=826231 Provided and/or discovered by: Amit Klein, Sanctum inc. Original Advisory: IBM: http://www-1.ibm.com/support/docview....QTP&q=PQ70921&uid=swg24005582 Microsoft: http://support.microsoft.com/default.aspx?kbid=826231

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