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| June 29, 2004 US-CERT: Beware of IE By Ryan Naraine The U.S. government's Computer Emergency Readiness Team (US-CERT) is warning Web surfers to stop using Microsoft's Internet Explorer (IE) browser. On the heels of last week's sophisticated malware attack that targeted a known IE flaw, US-CERT updated an earlier advisory to recommend the use of alternative browsers because of "significant vulnerabilities" in technologies embedded in IE. "There are a number of significant vulnerabilities in technologies relating to the IE domain/zone security model, the DHTML object model, MIME-type determination, and ActiveX. It is possible to reduce exposure to these vulnerabilities by using a different Web browser, especially when browsing untrusted sites," US-CERT noted in a vulnerability note. The latest US-CERT position comes at a crucial time for Microsoft , which has invested heavily to add secure browsing technologies in the coming Windows XP Service Pack 2. The software giant has spent the last few months talking up the coming IE security improvements but the slow response to patching well-known -- and sometimes "critical" -- browser holes isn't sitting well with security experts. On discussion lists and message boards, security researchers have spent a lot of time beating the "Dump IE" drum, and the US-CERT notice is sure to lend credibility to the movement away from the world's most popular browser. US-CERT is a non-profit partnership between the Department of Homeland Security (DHS) and the public and private sectors. It was established in September 2003 to improve computer security preparedness and response to cyber attacks in the United States. It has been more than two weeks since Microsoft confirmed the existence on an "extremely critical" IE bug, which was being used to load adware/spyware and malware on PCs without user intervention but, even though the company hinted it would go outside its monthly security update cycle to issue a fix, the flaw remains unpatched. US-CERT researchers say the IE browser does not adequately validate the security context of a frame that has been redirected by a Web server. It opens the door for an attacker to exploit the flaw by executing script in different security domains. "By causing script to be evaluated in the Local Machine Zone, the attacker could execute arbitrary code with the privileges of the user running IE," according to the advisory. "Functional exploit code is publicly available, and there are reports of incidents involving this vulnerability." To protect against the flaw, IE users are urged to disable Active scripting and ActiveX controls in the Internet Zone (or any zone used by an attacker). Other temporary workarounds include the application of the Outlook e-mail security update; the use of plain-text e-mails and the use of anti-virus software. Surfers must also get into the habit of not clicking on unsolicited URLs from e-mail, instant messages, Web forums or internet relay chat (IRC) sessions. |
There are so many vulnerabilities in IE that it's almost impossible not to be infected with malware, no matter how well protected you think you are. While we here at SAF, as well as almost all Windows help sites and specialist security sites, are trying our best to keep up with developments, the malware scumbags are way ahead of us. They find exploits that even Microsoft wasn't aware of. We have to face the fact that using IE is now not just unsecure, but dangerous.
I recommend all users to install an alternative browser. I like Mozilla Firefox 0.8 and have been using it for a while. It's fast, it's safe, it's popup-free and you can import IE bookmarks easily.
LoL![scared[1].gif](http://www.suggestafix.com/html/emoticons/scared[1].gif)
. Are they easy to use?
