Hash: SHA1

             AUSCERT External Security Bulletin Redistribution

                          ESB-2008.0492 -- [Win]
        Microsoft Internet Explorer 7 DisableCachingOfSSLPages may
                            not prevent caching
                                14 May 2008


        AusCERT Security Bulletin Summary

Product:              Internet Explorer 7
Publisher:            US-CERT
Operating System:     Windows
Impact:               Access Confidential Data
Access:               Existing Account
CVE Names:            CVE-2008-2159

Original Bulletin:    http://www.kb.cert.org/vuls/id/468843

Revision History:     May 14 2008: Added CVE Reference
                      May 13 2008: Initial Release

- --------------------------BEGIN INCLUDED TEXT--------------------

Vulnerability Note VU#468843

Microsoft Internet Explorer 7 DisableCachingOfSSLPages may not prevent 


Setting the Internet Explorer 7 option DisableCachingOfSSLPages may not 
prevent the caching of SSL-enabled web pages.

I. Description

Administrators and users can set the Internet Explorer 
DisableCachingOfSSLPages option to prevent sensitive or private data from 
being saved to disk. The registry key for this setting is:


After enabling this setting, Internet Explorer 7 may still cache 
SSL-enabled web pages to disk.

II. Impact

Private or sensitive data may be written to disk inadvertently.

III. Solution

We are currently unaware of a practical solution to this problem.

Secure deletion

Securely deleting or encrypting the Internet Explorer 7 browser cache 
(%userprofile%\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low) 
that contains the sensitive information will mitigate this vulnerability.

Systems Affected

Vendor	                Status	        Date Updated
Microsoft Corporation	Vulnerable	22-Apr-2008




Thanks to Bill KNox from MITRE for reporting this vulnerability.

This document was written by Ryan Giobbi.

Other Information
Date Public	         05/09/2008
Date First Published	 05/09/2008 07:59:14 AM
Date Last Updated	 05/09/2008
CERT Advisory	 
CVE Name	 
US-CERT Technical Alerts	 
Metric	                 2.40
Document Revision	 18
- --------------------------END INCLUDED TEXT--------------------

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