最新织梦cms漏洞之安全设置,有效防护木马（更新至20190920）(2)

$fullfilename = $cfg_basedir.$activepath.'/'.$filename;
修改为
if (preg_match('#.(php|pl|cgi|asp|aspx|jsp|php5|php4|php3|shtm|shtml)[^a-zA-Z0-9]+$#i', trim($filename))) {
	ShowMsg("你指定的文件名被系统禁止！",'javascript:;');
	exit();
}
$fullfilename = $cfg_basedir.$activepath.'/'.$filename;

$fullfilename = $cfg_basedir.$filename;
修改为
if (preg_match('#.(php|pl|cgi|asp|aspx|jsp|php5|php4|php3|shtm|shtml)[^a-zA-Z0-9]+$#i', trim($filename))) { 
				ShowMsg("你指定的文件名被系统禁止！",'javascript:;'); 
				exit(); 
  } 
$fullfilename = $cfg_basedir.$filename;

$image_dd = @getimagesize($$_key);
修改为
$image_dd = @getimagesize($$_key); if($image_dd == false){ continue; }

${$_key.'_size'} = @filesize($$_key);}
修改为
${$_key.'_size'} = @filesize($$_key);}
$imtypes = array("image/pjpeg", "image/jpeg", "image/gif", "image/png", "image/xpng", "image/wbmp", "image/bmp"); 
if(in_array(strtolower(trim(${$_key.'_type'})), $imtypes)) { $image_dd = @getimagesize($$_key); if($image_dd == false){ continue; } 
if (!is_array($image_dd)) { exit('Upload filetype not allow !');} }

$row = $dsql->GetOne("SELECT * FROM `dede_member_pms` WHERE id='$id' AND (fromid='{$cfg_ml->M_ID}' OR toid='{$cfg_ml->M_ID}')");
修改为
$id = intval($id); $row = $dsql->GetOne("SELECT * FROM `dede_member_pms` WHERE id='$id' AND (fromid='{$cfg_ml->M_ID}' OR toid='{$cfg_ml->M_ID}')");

$dsql->ExecuteNoneQuery("UPDATE `dede_guestbook` SET `msg`='$msg', `posttime`='".time()."' WHERE id='$id' ");
修改为
$msg = addslashes($msg); $dsql->ExecuteNoneQuery("UPDATE `dede_guestbook` SET `msg`='$msg', `posttime`='".time()."' WHERE id='$id' ");;

$urls .= "{dede:link islocal='1' text='{$servermsg1}'} $softurl1 {/dede:link}
";
修改为     
if (preg_match("#}(.*?){/dede:link}{dede:#sim", $servermsg1) != 1) 
{ $urls .= "{dede:link islocal='1' text='{$servermsg1}'} $softurl1 {/dede:link}
"; }

if (empty($dede_fieldshash) || $dede_fieldshash != md5($dede_addonfields.$cfg_cookie_encode))
修改为
if (empty($dede_fieldshash) || ( $dede_fieldshash != md5($dede_addonfields . $cfg_cookie_encode) && $dede_fieldshash != md5($dede_addonfields . 'anythingelse' . $cfg_cookie_encode))) 

$description = HtmlReplace($description, -1);//2011.06.30 增加html过滤 （by:织梦的鱼）
修改为
$description = HtmlReplace($description, -1);//2011.06.30 增加html过滤 （by:织梦的鱼）
$mtypesid = intval($mtypesid);

echo "<input type="hidden" name="dede_fieldshash" value="".md5($dede_addonfields.$cfg_cookie_encode)."" />";
修改为
echo "<input type="hidden" name="dede_fieldshash" value="". md5($dede_addonfields . 'anythingelse' .$cfg_cookie_encode) ."" />";

if( strlen($svar)>0 && preg_match('#^(cfg_|GLOBALS|_GET|_POST|_COOKIE)#',$svar) )
修改为
if( strlen($svar)>0 && preg_match('#^(cfg_|GLOBALS|_GET|_POST|_COOKIE|_SESSION)#',$svar) )

$order_sn = trim($_GET['out_trade_no']);
修改为
$order_sn = trim(addslashes($_GET['out_trade_no']));

if(isset($GLOBALS['arrs1']))
修改为
$arrs1 = array(); $arrs2 = array(); if(isset($GLOBALS['arrs1']))

$litpic =$oldlitpic;
修改为
$litpic =$oldlitpic; 
if (strpos( $litpic, '..') !== false || strpos( $litpic, $cfg_user_dir."/{$userid}/" ) === false) exit('not allowed path!');

<!--<script type="text/javascript" src="<?php echo UPDATEHOST;?>/dedecms/loginad.<?php echo $cfg_soft_lang; ?>.js"></script>-->
<div class="dede-ad">
  <ul>
    <script type="text/javascript"src="http://ad.dedecms.com/adsview/?action=single&key=admcploginad&charset=gbk"></script>
  </ul>
</div>

<iframe name="showad" src="index_body.php?dopost=showad" frameborder="0" width="100%" id="showad" frameborder="0" scrolling="no"  marginheight="5"></iframe>

SendData($hash);//321行
SendData($hash,2);//527行

else if($typeid == 999)
{
}
//将{}里的以及上面的else全部删除

if(file_exists($cachefile) && (filemtime($cachefile) + 60 * 30) > time())
修改为
if(file_exists($cachefile) && filesize($cachefile) > 10)

$arrs1 = array(0x63,0x66,0x67,0x5f,0x70,0x6f,0x77,0x65,0x72,0x62,0x79);
$arrs2 = array(0x20,0x3c,0x61,0x20,0x68,0x72,0x65,0x66,0x3d,0x68,0x74,0x74,0x70,0x3a,0x2f,0x2f,0x77,0x77,0x77,0x2e,0x64,0x65,0x64,0x65,0x63,0x6d,0x73,0x2e,0x63,0x6f,0x6d,0x20,0x74,0x61,0x72,0x67,0x65,0x74,0x3d,0x27,0x5f,0x62,0x6c,0x61,0x6e,0x6b,0x27,0x3e,0x50,0x6f,0x77,0x65,0x72,0x20,0x62,0x79,0x20,0x44,0x65,0x64,0x65,0x43,0x6d,0x73,0x3c,0x2f,0x61,0x3e);

//特殊操作
$arrs1 = array(); $arrs2 = array(); if(isset($GLOBALS['arrs1']))
{
    $v1 = $v2 = '';
    for($i=0;isset($arrs1[$i]);$i++)
    {
        $v1 .= chr($arrs1[$i]);
    }
    for($i=0;isset($arrs2[$i]);$i++)
    {
        $v2 .= chr($arrs2[$i]);
    }
    $GLOBALS[$v1] .= $v2;
}

$arrs1 = array(0x63,0x66,0x67,0x5f,0x70,0x6f,0x77,0x65,0x72,0x62,0x79);
$arrs2 = array(0x20,0x3c,0x61,0x20,0x68,0x72,0x65,0x66,0x3d,0x68,0x74,0x74,0x70,0x3a,0x2f,0x2f,
0x77,0x77,0x77,0x2e,0x64,0x65,0x64,0x65,0x63,0x6d,0x73,0x2e,0x63,0x6f,0x6d,0x20,0x74,0x61,0x72,
0x67,0x65,0x74,0x3d,0x27,0x5f,0x62,0x6c,0x61,0x6e,0x6b,0x27,0x3e,0x50,0x6f,0x77,0x65,0x72,0x20,
0x62,0x79,0x20,0x44,0x65,0x64,0x65,0x43,0x6d,0x73,0x3c,0x2f,0x61,0x3e);