Headline

CVE-2017-20103: Full Disclosure: WordPress Plugin Kama Click Counter 3.4.9

A vulnerability classified as critical has been found in Kama Click Counter Plugin up to 3.4.8. This affects an unknown part of the file wp-admin/admin.php. The manipulation of the argument order_by/order with the input ASC%2c(select*from(select(sleep(2)))a) leads to sql injection (Blind). It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.4.9 is able to address this issue. It is recommended to upgrade the affected component.

2 years ago

CVE

Open in Source

#sql #vulnerability #web #wordpress #php

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Full Disclosure mailing list archives****WordPress Plugin Kama Click Counter 3.4.9 - Blind SQL Injection

From: Manuel Garcia Cardenas <advidsec () gmail com>
Date: Mon, 27 Feb 2017 08:04:48 +0100

============================================= MGC ALERT 2017-002

Original release date: February 21, 2017
Last revised: February 28, 2017
Discovered by: Manuel García Cárdenas
Severity: 7,1/10 (CVSS Base Score) =============================================

I. VULNERABILITY

WordPress Plugin Kama Click Counter 3.4.9 - Blind SQL Injection

II. BACKGROUND

Using this plugin you will have statistics on clicks on your files or any other link (not file).

III. DESCRIPTION

This bug was found using the portal in the /wp-content/plugins/kama-clic-counter/admin.php file.

In the line 172,173 do not sanitize the input values.

$order_by = ($x= & $_GET[‘order_by’]) ? esc_sql($x) : 'link_date’; $order = ($x= & $_GET[‘order’]) ? esc_sql($x) : 'DESC’;

And in the line 182 or 186 the sql sentence is executed:

$sql = "SELECT * FROM $wpdb->kcc_clicks WHERE link_url LIKE ‘%$s%’ OR link_name LIKE ‘%$s%’ ORDER BY $order_by $order LIMIT $offset, $limit"; $sql = "SELECT * FROM $wpdb->kcc_clicks ORDER BY $order_by $order LIMIT $offset, $limit";

To exploit the vulnerability only is needed use the version 1.0 of the HTTP protocol to interact with the application.

It is possible to inject SQL code.

IV. PROOF OF CONCEPT

The following URL have been confirmed to all suffer from Time Based SQL Injection.

Time Based SQL Injection POC:

/wordpress/wp-admin/admin.php?page=kama-clic-counter&order_by=link_name&order=ASC%2c(select*from(select(sleep(2)))a)&paged=1 (2 seconds of response)

/wordpress/wp-admin/admin.php?page=kama-clic-counter&order_by=link_name&order=ASC%2c(select*from(select(sleep(30)))a)&paged=1 (30 seconds of response)

V. BUSINESS IMPACT

Public defacement, confidential data leakage, and database server compromise can result from these attacks. Client systems can also be targeted, and complete compromise of these client systems is also possible.

VI. SYSTEMS AFFECTED

Kama Click Counter <= 3.4.9

VII. SOLUTION

Disable the plugin until a fix is available.

VIII. REFERENCES

https://wordpress.org/plugins-wp/kama-clic-counter/

IX. CREDITS

This vulnerability has been discovered and reported by Manuel García Cárdenas (advidsec (at) gmail (dot) com).

X. REVISION HISTORY

February 21, 2017 1: Initial release February 28, 2017 2: Revision to send to lists

XI. DISCLOSURE TIMELINE

February 21, 2017 1: Vulnerability acquired by Manuel Garcia Cardenas February 21, 2017 2: Send to vendor February 24, 2017 3: New contact with vendor without response February 28, 2017 4: Send to the Full-Disclosure lists

XII. LEGAL NOTICES

The information contained within this advisory is supplied “as-is” with no warranties or guarantees of fitness of use or otherwise.

XIII. ABOUT

Manuel Garcia Cardenas Pentester

_______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/

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