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Date: 1999-10-02

IE 5.0 mit boesem Bug


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"Download behaviour" heisst das Feature von IE 5.0 , durch
welches boesartige Website/besitzer die Maschine und ein
mit ihr verbundenes Intranet entern können. Patch gibts
inzwischen [see below]
post/scrypt: Hat jemand mitgezählt Bug numero wieviel
dieser ist?



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Jack McCarthy
Another security problem has cropped up to plague
Microsoft's browser software.
The software giant this week admitted a vulnerability in its
Internet Explorer 5 that could allow a malicious Web site
operator to read the files on the computer of a person who
goes to the site, or on other computers on that user's local
intranet.

Microsoft posted a warning on its Web site saying it had
discovered the flaw in an IE 5 feature called "download
behavior," intended to allow Web page authors to download
files of client-side script, which is software designed to be run
by the browser. Such software is designed to allow the Web
site to only download files that are in its domain, and thus
prevents the users' files from being accessed.

However, an ill-intentioned Web site operator could bypass
domain restrictions and use download behavior to gain read
access to files on the user's machine or local intranet,
according to the Microsoft Web site.

A malicious Web operator would have to know specific file
names to read them and could not copy, delete or alter them,
says Scott Culp, a Microsoft security product manager. Also,
he says that there have been no reported security breaches.

The problem was reported by Georgi Guninski, a Bulgarian
programmer who earlier found another Microsoft security flaw,
Culp says.

Microsoft is advising users to protect themselves by disabling
the Active Scripting feature in IE 5 by doing the following:

-- In IE, select the Tools, then Internet Options, then click on
the Security tab.

-- Select the Internet Zone, then click on the "Custom Level"
button.

-- Under "Scripting," find the entry labeled "Active Scripting" and set it to "Disable."

-- Click OK twice to return to IE.

Microsoft says it will deliver a patch for a safe, new version of
Download Behavior, which will be available at
http://www.microsoft.com/security/.

Frequently asked questions about the problem can be found
at http://www.microsoft.com/security/bulletins/ms99-
040faq.asp.

Numerous security flaws have hit Microsoft in recent months.
Last week, the company released a patch for IE that
eliminated the "ImportExportFavorites" vulnerability, a hole
that allowed a Web site operator to carry out any function
that visitors to a Web site could do on their own computers.

In Redmond, Wash., Microsoft can be reached at 425-882-
8080,or at http://www.microsoft.com/.

Source
http://www.idg.net/go.cgi?id=166524
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BIG BROTHER AWARDS AUSTRIA 1999
Fuer Lauschangreifer, Spitzelfirmen, Datenhaendler,
gestzlich ermaechtigte Ueberwacher
Reichen Sie Ihre Nominierung ein:
http://www.bigbrother.awards.at
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published on: 1999-10-02
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