Title: Microsoft IE DocumentComplete() Cross Frame Access Vulnerability
Severity: HIGH
Description:
The DocumentComplete() function in IE does not properly validate origin domains.
Therefore it is possible for a remote webserver to gain read access to local files on the machine of any website visitor or email recipient by accessing the browser object of a frame containing local content. Only files that can be opened by a browser window (eg. *.htm, *.js, *.txt etc) are viewable, and the path and name of the file must be known by the attacker.
Update (May 16, 2001): A new variant of this vulnerability has been discovered. Microsoft has released a new patch to address all known variants of this vulnerability.
Affected Products:
- Microsoft Internet Explorer 4.0.0
- Microsoft Internet Explorer 4.0.0 for WfW
- Microsoft Internet Explorer 4.0.0 for Windows 3.1
- Microsoft Internet Explorer 4.0.0 for Windows 95
- Microsoft Internet Explorer 4.0.0 for Windows NT 3.51
- Microsoft Internet Explorer 4.0.0 for Windows NT 4.0
- Microsoft Internet Explorer 5.0 for Windows 2000
- Microsoft Internet Explorer 5.0 for Windows 95
- Microsoft Internet Explorer 5.0 for Windows 98
- Microsoft Internet Explorer 5.0 for Windows NT 4.0
- Microsoft Internet Explorer 5.0.1
- Microsoft Internet Explorer 5.5.0 preview
- Microsoft Windows 3.11.0
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows NT 4.0
References:
- Microsoft: Frequently Asked Questions: Microsoft Security Bulletin (MS00-033)
- Microsoft: Frequently Asked Questions: Microsoft Security Bulletin (MS00-093)
- Microsoft: Microsoft Security Bulletin MS01-027
- Microsoft: Q262509: Patch Available for "Frame Domain Verification," "Unauthorized Cookie A
Juniper Networks provides this content via a wide variety of sources and production methods. If notified of errors or omissions in the content of this page, Juniper Networks, at its discretion, will modify or remove the page or leave the content as is, depending on various factors including but not limited to the reputation and authority of the party providing the notification. Please use the contact information displayed elsewhere on this page to report any errors or omissions regarding the content on this page.
