DataLife Engine Support » DataLife Engine » Bug Fix » Insufficient filtering of incoming data for DLE

Insufficient filtering of incoming data for DLE

Author: admin;
Views: 562;
Date: 17 October 2009;

Problem: Lack of filtering incoming data in the processing of news.

Error in version: All Versions (except DLE 8.2)

The degree of danger: Low

Manual correction:

Open the file: engine/classes/parse.class.php

find

if( ((strpos( strtolower( $attrSubSet[1] ), 'expression' ) !== false) && ($attrSubSet[0] == 'style')) || (strpos( strtolower( $attrSubSet[1] ), 'javascript:' ) !== false) || (strpos( strtolower( $attrSubSet[1] ), 'behaviour:' ) !== false) || (strpos( strtolower( $attrSubSet[1] ), 'vbscript:' ) !== false) || (strpos( strtolower( $attrSubSet[1] ), 'mocha:' ) !== false) || (strpos( strtolower( $attrSubSet[1] ), 'data:' ) !== false and $attrSubSet[0] == "href") || ($attrSubSet[0] == "href" and strpos( strtolower( $attrSubSet[1] ), $config['admin_path'] ) !== false and preg_match( "/[?&%<\[\]]/", $attrSubSet[1] )) || (strpos( strtolower( $attrSubSet[1] ), 'livescript:' ) !== false) ) continue;

Replace with

if( ((strpos( strtolower( $attrSubSet[1] ), 'expression' ) !== false) && ($attrSubSet[0] == 'style')) || (strpos( strtolower( $attrSubSet[1] ), 'javascript:' ) !== false) || (strpos( strtolower( $attrSubSet[1] ), 'behaviour:' ) !== false) || (strpos( strtolower( $attrSubSet[1] ), 'vbscript:' ) !== false) || (strpos( strtolower( $attrSubSet[1] ), 'mocha:' ) !== false) || (strpos( strtolower( $attrSubSet[1] ), 'data:' ) !== false and $attrSubSet[0] == "href") || (strpos( strtolower( $attrSubSet[1] ), 'data:' ) !== false and $attrSubSet[0] == "src") || ($attrSubSet[0] == "href" and strpos( strtolower( $attrSubSet[1] ), $config['admin_path'] ) !== false and preg_match( "/[?&%<\[\]]/", $attrSubSet[1] )) || (strpos( strtolower( $attrSubSet[1] ), 'livescript:' ) !== false) ) continue;

Next find

$source = str_replace( "`", "`", $source );

Below add

$source = preg_replace( "#<iframe#i", "<iframe", $source );
$source = preg_replace( "#<script#i", "<script", $source );

Finish!

Source :

http://dle-news.ru/bags/665-nedostatochnaya-filtraciya-vxodyashhix-dannyx.html

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