![]() Windows 98 customers can obtain the updated patch using Windows Update. The complete URL for each affected software version is given below. Microsoft highly recommends that all affected customers - including anyone who downloaded the original patch before November 18 - download the updated patch to protect their computers. ( Note It might take 24 hours from the original posting of this bulletin for the updated KB article to be visible in the Web-based Knowledge Base.) Microsoft Knowledge Base (KB) article 169245, Update available for "Untrusted Scripted Paste" Issue https: Microsoft has published the following Knowledge Base (KB) articles on this issue: See The Microsoft Product Security Notification Service for more information about this free customer service. Microsoft has sent this security bulletin to customers subscribing to the Microsoft Product Security Notification Service. This patch is available for downloading from the sites listed below. The updated version fixes the original problem, as well as a subsequently identified variant. On November 18th, Microsoft released an updated version of this patch. This does not affect any Macintosh or UNIX versions of Internet Explorer. This vulnerability does not affect Internet Explorer 3.x or 4.0 on any platform. All customers that have affected versions of Internet Explorer on their systems should install this patch, whether or not they use Internet Explorer for web browsing. This vulnerability could also affect software that uses HTML functionality provided by Internet Explorer, even if Internet Explorer is not used as your default browser. Microsoft Internet Explorer 4.01 for Windows 3.1 and Windows NT 3.51.Microsoft Windows® 98, with integrated Internet Explorer.Microsoft® Internet Explorer 4.01 and 4.01 SP1 on Windows NT® 4.0, Windows 95.The updated patch addresses both the original problem and the newly-discovered variant. (See "Administrative Workaround" below for information on re-enabling this functionality).Īlthough the original patch corrected the problem, another method of putting a filename into the file upload intrinsic control was discovered subsequently. If the user has disabled the default warning that is displayed when submitting unencrypted forms, the file would be sent without any warning to the user. Once the filename has been pasted into the control, a subsequent form submission could send the file to a remote web site. This should only be possible by explicit user action. The underlying problem is the ability of a script to use the Document.ExecCommand function to paste a filename into the file upload intrinsic control. ![]() This could also be used to view the contents of a file on the user's network, if the user has access to it and the malicious operator knows its direct path name. ![]() This vulnerability makes it possible for the operator to read the contents of a file on the user's computer if he knows the exact name and path of the targeted file. The "Untrusted Scripted Paste" issue involves a vulnerability in Internet Explorer® that could allow a malicious web site operator to circumvent certain Internet Explorer security safeguards. Microsoft highly recommends that all affected customers - including anyone who downloaded the original patch before November 18 - download and install the updated patch to protect their computers. The updated patch fixes the original vulnerability as well as a newly-discovered variant. This vulnerability, also known as the "Cuartango" vulnerability, could enable a malicious web site operator to use scripted paste operations to read a file that resides in a known location on a user's system. On November 18th Microsoft released an updated version of the patch for the "Untrusted Scripted Paste" vulnerability. Security Bulletin Microsoft Security Bulletin MS98-015 - Critical Update available for "Untrusted Scripted Paste" Issue in Microsoft Internet Explorer 4.01
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