蚂蚁分类getshell

Posted 2020-09-10

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　　程序介绍：我们毫无保留的告诉你们这个Mymps蚂蚁分类信息系统5.6S多城市版网站源码+新版手机界面纯安装版，去除域名限制，你可以无限制的安装使用，无功能限制，亲测保证稳定运行。此程序部分核心文件是用zend加密的，但不影响使用。如果你安装不上，原因很简单就是服务器环境问题。

/member/include/inc_shop.php

if($if_corp == 1){

//???????????

if($ac == ‘base‘){

if(empty($tname)) write_msg(‘‘,‘?m=shop&type=corp&error=39‘);

if(empty($areaid)) write_msg(‘‘,‘?m=shop&type=corp&error=40‘);

$db -> query("UPDATE `{$db_mymps}member` SET tname=‘$tname‘,catid=‘$catids‘,areaid=‘$areaid‘,introduce=‘$introduce‘,address=‘$address‘,busway=‘$busway‘,mappoint=‘$mappoint‘,msn=‘$msn‘,web=‘$web‘ $where AND if_corp = ‘1‘");

write_msg(‘‘,‘?m=shop&type=corp&success=13‘);

} elseif($ac == ‘template‘) {

if($_FILES[$name_file][‘name‘]){

require_once MYMPS_INC.‘/upfile.fun.php‘;

$destination = "/banner/".date(‘Ym‘)."/";

$mymps_image = start_upload($name_file,$destination,0,‘‘,‘‘,$oldbanner,‘‘);

前面的ac不用管就是if判断然后进入操作而已。我们主要看template这里，获取$name_file的上传内容然后传入start_upload，这里说一下传参中可控的有$oldbanner
看下函数内容

function start_upload( $file_name, $destination_folder, $watermark = 0, $limit_width = "", $limit_height = "", $edit_filename = "", $edit_pre_filename = "" )

{

global $mymps_global;

global $timestamp;

if ( !is_uploaded_file( $_FILES[$file_name][‘tmp_name‘] ) )

{

write_msg( "请重新选择您要上传的图片!" );

}

$file = $_FILES[$file_name];

@createdir( MYMPS_UPLOAD.$destination_folder );

$file_name = $file[‘tmp_name‘];

$pinfo = pathinfo( $file[‘name‘] );

$ftype = $pinfo[‘extension‘];

$fname = $pinfo[basename];

if ( empty( $edit_filename ) && empty( $edit_pre_filename ) )

{

$destination_file = $timestamp.random( ).".".$ftype;

$destination = MYMPS_UPLOAD.$destination_folder.$destination_file;

$small_destination = MYMPS_UPLOAD.$destination_folder."pre_".$destination_file;

}

else

{

$destination = MYMPS_ROOT.$edit_filename;

$small_destination = MYMPS_ROOT.$edit_pre_filename;

$forbidarray = array(

MYMPS_ROOT."/images/logo.gif",

MYMPS_ROOT."/images/nopic.gif",

MYMPS_ROOT."/images/nophoto.jpg",

MYMPS_ROOT."/images/noavatar.gif",

MYMPS_ROOT."/images/noavatar_small.gif"

);

if ( !in_array( $destination, $forbidarray ) || $destination != MYMPS_ROOT )

{

@unlink( $destination );

}

if ( !in_array( $small_destination, $forbidarray ) || $destination != MYMPS_ROOT )

{

@unlink( $small_destination );

}

unset( $forbidarray );

}

if ( file_exists( $destination ) )

{

write_msg( "同名图片已存在，请重新选择您要上传的图片！" );

}

if ( !move_uploaded_file( $file_name, $destination ) )

{

write_msg( "图片上传失败，请重新选择您要上传的图片！" );

}

看这里

$file = $_FILES[$file_name];

@createdir( MYMPS_UPLOAD.$destination_folder );

$file_name = $file[‘tmp_name‘];

$pinfo = pathinfo( $file[‘name‘] );

$ftype = $pinfo[‘extension‘];

$fname = $pinfo[basename];

先是获取了文件内容然后获取了文件后缀以及文件名这些

{

$destination = MYMPS_ROOT.$edit_filename;

$small_destination = MYMPS_ROOT.$edit_pre_filename;

$forbidarray = array(

MYMPS_ROOT."/images/logo.gif",

MYMPS_ROOT."/images/nopic.gif",

MYMPS_ROOT."/images/nophoto.jpg",

MYMPS_ROOT."/images/noavatar.gif",

MYMPS_ROOT."/images/noavatar_small.gif"

);

这里的edit与edit_pre讲道理的是非空所以进入了该if进行后缀以及路径拼接(期间并无任何效验)

<span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;">if ( file_exists( $destination ) )<span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p><span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"> {<span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p><span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"> write_msg( "同名图片已存在，请重新选择您要上传的图片！" );<span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p><span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"> }<span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p><span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"> if ( !move_uploaded_file( $file_name, $destination ) )<span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p><span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"> {<span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p><span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"> write_msg( "图片上传失败，请重新选择您要上传的图片！" );<span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p><span style="mso-spacerun:‘yes‘;font-family:宋体;mso-ascii-font-family:‘Courier New‘;mso-hansi-font-family:‘Courier New‘;mso-bidi-font-family:‘Times New Roman‘;color:rgb(0,0,0);font-size:10.0000pt;mso-font-kerning:1.0000pt;"> }

下面接着判断了是否存在相同名如果不存在同名则直接上传。
本地复现:
Old我们指定的文件名
不过印象中我并不记得蚂蚁分类会存在这个漏洞啊！！抱着各种心情多看一下.随便看一个
发现除了我们那个每个上面都会有一个check_upimage的调用看看怎么回事

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