Windows 2000 WebDAV Buffer Overflow Exploit Against IIS 5.0 - CRITICAL
The National Infrastructure Protection Agency (NIPC) and the CERTŪ Coordination Center have issued advisories (Advisory 03-005 - NIPC) (CA-2003-09) warning of a critical vulnerability in the WebDAV component of Microsoft IIS 5.0 running on Microsoft Windows 2000. IIS.
This vulnerability could permit hackers to exploit a buffer overflow that experts suggest has the potential to start up another worm with nearly the same impact as Code Red.
Given the current elavated Orange Threat level issued by the Office of Homeland Security, Network Administrators are urged to immediately patch any IIS 5.0 servers or disable the WebDAV service until the patch can be applied. National Infrastructure Protection Center is also advising network adminstrators take the following steps:
Monitor information sources for additional alerts regarding possible attack activity.
Report any relevant activity (increased port 80 probing or activity, web server crashes, etc.) using an Incident Response Form.
Ensure that your incident response capability is prepared for a possible incident.
If successfully attacked, recognize that a system compromise may have taken place; take appropriate action based on your incident handling policy.
The SANS institute is offering a FREE special webinar, Tuesday March 18, 2003 3:00 EST, to discuss the vulnerability, featuring two Windows experts.
Previous Tech Alerts: 03/03/03 Critical Vulnerability Discovered in Sendmail 02/06/03 Microsoft Releases Cummulative Patch for Internet Explorer Flaws It Lists as Critical 01/26/03 The Importance of Applying Patches 01/23/03 Microsoft and SUN release slew of Patches 01/14/03 New Worms Spreading through Email 12/09/02 Microsoft Issues Updated Cumulative Patch for IE 11/13/02 New e-greeting tactics pose serious threat 11/01/02 Critical patch released for Windows 2000, Windows XP 10/21/02 Microsoft Fixes Vulnerabilities: Releases Patches for SQL, Word and Excel
10/03/02 Bugbear Worm Gains Strength 10/02/02 Top 20 List of Internet Security Vulnerabilities Released 09/02/02 Microsoft Warns SysAdmins To Immediately Patch Identity Spoofing Flaw 08/21/02 Microsoft releases patch to fix "critical" vulnerability in
Windows 2000 systems that allow unprivileged users to log
onto them interactively 08/09/02 Is Confidential Bank Information Walking Out Your Door? 07/30/02 Microsoft Continues to Patch Flawed Software 07/23/02 CERT advisory on PHP 07/15/02 Outlook Users Employing PGP Encryption Program Vulnerable to Hacking 07/11/02 Researchers Report Serious Flaw in IE 06/27/02 Microsoft Releases Critical Patch for Windows Media Player 06/18/02 CERT Warns of Critical Vulnerabilty in Apache Web Server 06/12/02 Sports Fans Beware: World Cup Virus Bounces Around the Net 06/07/02 Dead Man Tell No Passwords 05/31/02 Microsoft Issues Critical Warning Regarding Exchange Server 05/22/02 Microsoft SQL Spida Worm Slows Network Traffic 05/15/02 Virus Hoax 'JDBGMGR.EXE' Spreading Rapidly Thoughout Net 04/25/02 Klez Worm Reels in Banks with its Bait 04/11/02 Ten New Vulnerabilities Discovered in Microsoft IIS Server 04/09/02 New Virus Hoax Circulating Around Net 03/22/02 MyLife.B Virus Makes Its Way Around the Net 03/21/02 Microsoft Updates Its Warning on Critical Windows Vulnerability 03/14/02 New Virus (W32/Fbound-C) Spreading Rapidly in the Wild 03/08/02 Unauthorized E-Mail Scam Attempts to Steer Unwitting Customers to Fraudulent Bank Web Site 03/06/02 Klez-E Worm and W32.Gibe Virus Warnings 03/01/02 CERT Issues Warning on PHP Scripting Language Flaw 02/27/02 CERT Issues Warning on Internet Explorer and Outlook Flaw 02/22/02 SNMP Patches and Detection Tools Available 02/20/02 Email Address Belonging to Legitimate Security Site Hijacked to Deliver Dangerous Yarner Worm 02/15/02 Mass Mailing Email Worm Compromises Word 2000 Security Settings 02/13/02 SNMP VULNERABILITY 02/07/02 Bloodhound Mass Mailing Worm and Managing Risks in Wireless Networks 02/04/02 Microsoft Issues Collection of Security Fixes for Windows 2000 01/31/02 Copycat Virus Unleashed 01/30/02 Netscape Browser Vulnerable to Cookie Theft 01/28/02 "My Party" Mass Mailing Worm 01/18/02 IT Contingency Planning Guide, Information Security Checklist and Solaris Vulnerability 01/15/02 Trojan.StartPage Alters Web Browsers 01/12/02 New Internet Worm Gigger Masquerades as Microsoft Outlook Upgrade
01/08/02 Microsoft Universal Plug and Play Vulnerability 12/20/01 Holiday Themed Computer Virus Unleashed
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