Article View: bit.listserv.labmgr
Article #230Re: Internet Explorer 3.0 Security Problem
From: Donald L. Moore
Date: Tue, 27 Aug 1996 00:00
Date: Tue, 27 Aug 1996 00:00
68 lines
3397 bytes
3397 bytes
----------------------------Original message---------------------------- At 12:49 PM 8/26/96 EDT, you wrote: >----------------------------Original message---------------------------- >From: NAME: Mike Hennessy > FUNC: Specialty Chemicals > TEL: 540-4376 FAX 540-2344 <HENNESMJ AT A1 AT JLCL01> >To: NAME: LABMGR@LSV.UKY.EDU <"LABMGR@LSV.UKY.EDU"@ESDS01@MRGATE@JLCL01> > > >Please see attachment! > > > >From: NAME: William L. Halberstadt <HALBERST@A1.ESVAX.UMC.DUPONT.COM@UMC >Date: 21-Aug-1996 >Posted-date: 21-Aug-1996 >Precedence: 1 >Subject: POSSIBLE EXPLORER SECURITY PROBLEM ON PC'S >To: WWW@EPLRX7.ES.DUPONT.COM@UMC@ESVAX > > >[This message is converted from WPS-PLUS to ASCII] > >>From the "comp.risks" USENET forum.... > >Date: Wed, 21 Aug 1996 13:12:59 -0400 >From: felten@CS.Princeton.EDU (Ed Felten) >Subject: Internet Explorer Security Problem > >We have discovered a security flaw in the current version (3.0) of >Microsoft's Internet Explorer browser running under Windows 95. An attacker >could exploit the flaw to run any DOS command on the machine of an Explorer >user who visits the attacker's page. For example, the attacker could read, >modify, or delete the victim's files, or insert a virus or backdoor entrance >into the victim's machine. We have verified our discovery by creating a Web >page that deletes a file on the machine of any Explorer user who visits the >page. > >The core of the attack is a technique for delivering a document to the >victim's browser while bypassing the security checks that would normally be >applied to the document. If the document is, for example, a Microsoft Word >template, it could contain a macro that executes any DOS command. > >Normally, before Explorer downloads a dangerous file like a Word document, >it displays a dialog box warning that the file might contain a virus or >other dangerous content, and asking the user whether to abort the download >or to proceed with the download anyway. This gives the user a chance to >avoid the risk of a malicious document. However, our technique allows an >attacker to deliver a document without triggering the dialog box. > >Microsoft has been notified and they are working on fixing the problem. >Until a remedy is widely available, we will not disclose further details >about the flaw. > >For more information, contact Ed Felten at felten@cs.princeton.edu or >609-258-5906. > >Dirk Balfanz and Ed Felten >Dept. of Computer Science, Princeton University >http://www.cs.princeton.edu/sip/ > > > The fix can be downloaded from ftp.microsoft.com or http://www.windows95.com/apps/patches.html Don M.
Technical Details
Message-ID:
<2.2.32.19960826194114.00ee6374@pop1.rpi.edu>Path:
arc1-ca.pugleaf.net!unknown!not-for-mailShow Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fc881,84f769632aaecefb X-Google-Attributes: gidfc881,public From: "Donald L. Moore" <moored@rpi.edu> Subject: Re: Internet Explorer 3.0 Security Problem Date: 1996/08/27 Message-ID: <2.2.32.19960826194114.00ee6374@pop1.rpi.edu> X-Deja-AN: 177100297 sender: Computer Lab Managers <LABMGR@LSV.UKY.EDU> x-sender: moored@pop1.rpi.edu comments: ******************************************************** approved-by: List Moderator <LSTOWN@UKCC.UKY.EDU> content-type: text/plain; charset="us-ascii" resent-subject: Re: Internet Explorer 3.0 Security Problem mime-version: 1.0 newsgroups: bit.listserv.labmgr x-mailer: MailBook 95.01.000