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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 INTERNET RISK UPDATE for 04-15-2002 ISS X-Force Internet Threat Intelligence Center www.iss.net - Click on AlertCon logo for more information. ******************************************** ALERTCON 2 Projected: AlertCon 1 ******************************************** ALERTCON 2 - We remain at AlertCon to 2 to ensure that IT professionals are aware of the vulnerabilities in IIS 4.0, 5.0 and 5.1 and that they have deployed the patches listed below. We anticipate remaining at AlertCon 2 through this afternoon. Internet Security Systems has released its Internet Risk Impact Summary for December 22, 2001 through March 21, 2002. Please click on this link https://gtoc.iss.net for the PDF document. MICROSOFT: ISS X-Force has learned that Microsoft Internet Information Server (IIS) is affected by ten new remote vulnerabilities. These vulnerabilities vary in severity from mild to critical. A remote attacker may exploit one or more of these vulnerabilities to cause a target Web server to crash, execute arbitrary commands on the server, or gain complete control of a target IIS server. Affected Versions: Microsoft Internet Information Server 4.0 Microsoft Internet Information Server 5.0 Microsoft Internet Information Server 5.1 Note: IIS 6.0 Beta build 3605 and earlier are also affected. VIRUSES/WORMS: WM97/Marker-KS is a Word 97 macro virus. ******************************************** RECOMMENDATIONS ******************************************** X-Force recommends that all affected IIS customers apply the following Microsoft supplied patches immediately: Microsoft IIS 4.0: http://www.microsoft.com/Downloads/Release.asp?ReleaseID=37931 Microsoft IIS 5.0: http://www.microsoft.com/Downloads/Release.asp?ReleaseID=37824 Microsoft IIS 5.1: http://www.microsoft.com/Downloads/Release.asp?ReleaseID=37857 Information regarding viruses and worms please see: https://gtoc.iss.net/viruses.php ******************************************** FACTOID: In the latest CSI/FBI survey, for the fifth year in a row, more respondents (74%) cited their Internet connection as a frequent point of attack than cited their internal systems as a frequent point of attack (33%). See the full report at http://www.gocsi.com/press/20020407.html ******************************************** ATTACK SIGNATURE RANKING - global IDS, midnight - midnight, previous Day, % of total ******************************************** Protocol Decode 74.13% Unauthorized Access Attempt 09.92% Suspicious Activity 07.27% Denial Of Service 04.29% Pre-Attack Probe 04.20% Back Door 00.20% ******************************************** TOP TEN ATTACK DESTINATION PORTS - global IDS, midnight - midnight, previous day, % of top ten (ports found at) http://www.networkice.com/Advice/Exploits/Ports/default.htm ******************************************** 80 (http) 72.43% 161 (SNMP) 16.67% 22 (ssh) 04.11% 25 (smtp) 01.39% 139 (NetBIOS) 01.38% 162 (SNMPTrap) 01.23% 1500 (VLSI) 01.18% 23 (telnet) 00.59% 21 (ftp) 00.54% 143 (IMAP) 00.49% ******************************************** BACKGROUND, COPYRIGHT NOTICE, and DISCLAIMER ******************************************** Background. We provide this information in the spirit of PDD 63 to help security professionals wage the war against Internet threats more effectively. Information in this update derived primarily from global, real time, 24 x 7 IDS feeds, ISS X-Force R&D Team research, and professional liaison. Other sources as noted. AlertCon 1 reflects the global, malicious, determined, 24 x 7 attacks experienced by all networks. AlertCon 2 means increased vigilance/action recommended due to a specific threat or concern. AlertCon 3 means increased attacks against specific targets or vulnerabilities on a scale that is unusually high, action required. AlertCon 4 reflects an Internet emergency for a target or group of targets whose business continuity may depend on some sort of immediate, decisive action. All summaries cover 24 hours the previous workday, GMT. Monday summaries may cover some weekend activity. Copyright 2002 Internet Security Systems, Inc. Permission is granted for the redistribution of the Internet Threat Update electronically. It is not to be sold or edited in any way without express consent of ISS. Refer comments or questions to: [EMAIL PROTECTED] or [EMAIL PROTECTED] Disclaimer: This information is subject to change without notice. Use of this information constitutes acceptance for use in an 'as is' condition. There are no warranties with regard to this information. In no event shall the author be liable for any damages whatsoever arising out of or in connection with the use or spread of this information. Any use of this information is at the user's own risk. No other use authorized. FOIA Exemption 4. You can download the public key from MIT's PGP key server and PGP.com's key server. Patrick Gray Manager, X-Force Internet Threat Intelligence Center Internet Security Systems 6303 Barfield Road Atlanta, GA 30328 -----BEGIN PGP SIGNATURE----- Version: PGP 7.0 iQA/AwUBPLrWBpG41ROSQPncEQIajQCaA+yx6jznDXft7jzJKZsXtVuyxT0AoLs0 KzZ+oqMu/V+GgS3tiFtZzC63 =xBGy -----END PGP SIGNATURE-----
