National Cyber-Alert System

Vulnerability Summary for CVE-2002-0072

Overview

The w3svc.dll ISAPI filter in Front Page Server Extensions and ASP.NET for Internet Information Server (IIS) 4.0, 5.0, and 5.1 does not properly handle the error condition when a long URL is provided, which allows remote attackers to cause a denial of service (crash) when the URL parser accesses a null pointer.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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US-CERT Vulnerability Note: VU#521059

Name: VU#521059

Hyperlink:http://www.kb.cert.org/vuls/id/521059

CERT/CC Advisory: CA-2002-09

Name: CA-2002-09

Hyperlink:http://www.cert.org/advisories/CA-2002-09.html

External Source: MS

Name: MS02-018

Type: Advisory; Patch Information

Hyperlink:http://www.microsoft.com/technet/security/bulletin/ms02-018.asp

External Source: BID

Name: 4479

Hyperlink:http://www.securityfocus.com/bid/4479

External Source: OSVDB

Name: 3326

Hyperlink:http://www.osvdb.org/3326

External Source: XF

Name: iis-isapi-filter-error-dos(8800)

Hyperlink:http://www.iss.net/security_center/static/8800.php

External Source: CISCO

Name: 20020415 Microsoft IIS Vulnerabilities in Cisco Products - MS02-018

Hyperlink:http://www.cisco.com/warp/public/707/Microsoft-IIS-vulnerabilities-MS02-018.shtml

External Source: BUGTRAQ

Name: 20020411 KPMG-2002009: Microsoft IIS W3SVC Denial of Service

Hyperlink:http://marc.theaimsgroup.com/?l=bugtraq&m=101853851025208&w=2