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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 INTERNET RISK UPDATE for 04-24-2002 ISS X-Force Internet Threat Intelligence Center www.iss.net - Click on AlertCon logo for more information. ******************************************** ALERTCON 1 Projected: AlertCon 1 ******************************************** ALERTCON 1 - We are at AlertCon 1, the usual chaotic state of the Internet. Vulnerabilities: EnGarde Webalizer is a fast, free web server log file analysis program used in EnGarde which features improved access control, host and network IDS. There is a potentially exploitable buffer overflow in Webalizer that could allow an attacker to compromise a host by spoofing reverse DNS queries. VIRUSES/WORMS: Nothing new to report this morning other than a few nuisances and socially engineered-type viruses. Good time to update your anti-virus solution of choice. ******************************************** RECOMMENDATIONS ******************************************** Engarde: EnGarde Webalizer users should upgrade to the most recent version as outlined in this advisory: http://linuxtoday.com/news_story.php3?ltsn=2002-04 - -23-018-26-SC-NT Information regarding viruses and worms please see: https://gtoc.iss.net/viruses.php ******************************************** FACTOID: China has the second largest online population of any country in the world, following the U.S.'s lead, according to a report by Nielsen/NetRatings. Fifty-six million people, or just over 5% of China's total population, can access the Internet from their homes, despite the country's comparative poverty -- more than half the population lives on less than $2 a day. ******************************************** ATTACK SIGNATURE RANKING - global IDS, midnight - midnight, previous Day, % of total ******************************************** Protocol Decode 30.32% Unauthorized Access Attempt 30.07% Pre-Attack Probe 18.93% Suspicious Activity 12.07% Denial Of Service 08.59% Back Door 00.02% ******************************************** TOP TEN ATTACK DESTINATION PORTS - global IDS, midnight - midnight, previous day, % of top ten (ports found at) http://www.networkice.com/Advice/Exploits/Ports/de fault.htm ******************************************** 80 (http) 52.86% 25 (smtp) 28.05% 161 (SNMP) 06.03% 21 (ftp) 05.21% 22 (ssh) 04.00% 69 (tftp) 01.16% 139 (NetBIOS) 01.03% 443 (ssl) 00.57% 162 (SNMPTrap) 00.56% 23 (telnet) 00.53% ******************************************** 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 7.0.4 iQA/AwUBPMbDmJG41ROSQPncEQJD6QCffFD+kQn4Biw5PrMRUUeYErxgSL0AoKIM 6rUCn5oTe7+FH5ayhbdSWPyW =/d5E -----END PGP SIGNATURE-----
