蚂蚁分类getshell
没穿底裤发表于 2017-03-22 19:50:00
from:90sec
/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)
<p class="MsoNormal" style="text-indent:20.0000pt;"><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;">if ( file_exists( $destination ) )</span><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></p><p class="MsoNormal" style="text-indent:20.0000pt;"><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;"> {</span><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></p><p class="MsoNormal" style="text-indent:20.0000pt;"><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;"> write_msg( "<font face="宋体">同名图片已存在，请重新选择您要上传的图片！</font><font face="Courier New">" );</font></span><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></p><p class="MsoNormal" style="text-indent:20.0000pt;"><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;"> }</span><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></p><p class="MsoNormal" style="text-indent:20.0000pt;"><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;"> if ( !move_uploaded_file( $file_name, $destination ) )</span><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></p><p class="MsoNormal" style="text-indent:20.0000pt;"><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;"> {</span><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></p><p class="MsoNormal" style="text-indent:20.0000pt;"><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;"> write_msg( "<font face="宋体">图片上传失败，请重新选择您要上传的图片！</font><font face="Courier New">" );</font></span><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></p><p class="MsoNormal" style="text-indent:20.0000pt;"><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;"> }</span></p>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