The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
None
PR
The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
High
C
There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity
High
I
There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability
High
A
There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.
Below is a copy: WordPress Smooth Slider 2.8.6 SQL Injection
DefenseCode ThunderScan SAST Advisory: WordPress Smooth Slider Plugin
SQL injection Security Vulnerability
Advisory ID: DC-2018-01-004
Advisory Title: WordPress Smooth Slider Plugin SQL injection
Security Vulnerability
Advisory URL: http://www.defensecode.com/advisories.php
Software: WordPress Smooth Slider plugin
Language: PHP
Version: 2.8.6 and below
Vendor Status: Vendor contacted, update released
Release Date: 2018/01/10
Risk: Medium
1. General Overview
===================
During the security audit of Smooth Slider plugin for WordPress CMS,
security vulnerability was discovered using DefenseCode ThunderScan
application source code security analysis platform.
More information about ThunderScan is available at URL:
http://www.defensecode.com
2. Software Overview
====================
According to the plugin developers, Smooth Slider is a free WordPress
slider plugin to create image slider, post slider, content slider,
video slideshow with responsive design.
According to wordpress.org, it has more than 20 000 active installs.
Homepage:
https://wordpress.org/plugins/smooth-slider/
http://slidervilla.com/smooth-slider/
3. Vulnerability Description
============================
During the security analysis, ThunderScan discovered SQL injection
vulnerability in Smooth Slider WordPress plugin.
The easiest way to reproduce the vulnerability is to visit the
provided URL while being logged in as administrator or another user
that is authorized to access the plugin settings page. Users that do
not have full administrative privileges could abuse the database
access the vulnerability provides to either escalate their privileges
or obtain and modify database contents they were not supposed to be
able to.
Due to the missing nonce token, the vulnerable code is also directly
exposed to attack vectors such as Cross Site request forgery (CSRF).
3.1. SQL injection
Function: $wpdb->get_var()
Variable: $_GET['trid']
Vulnerable URL:
http://vulnerablesite.com/wp-admin/post.php?post=1&action=edit&source_lang=1&trid=22
OR SLEEP(5)
File: smooth-slider\smooth-slider.php
---------
470 $id = $wpdb->get_var( "SELECT element_id FROM
{$wpdb->prefix}icl_translations WHERE trid=".$_GET['trid']." AND
language_code='".$_GET['source_lang']."'" );
---------
4. Solution
===========
After the vulnerability was reported the vendor resolved the security
issues. All users are strongly advised to update WordPress Smooth
Slider plugin to the latest available version.
5. Credits
==========
Discovered by Neven Biruski using DefenseCode ThunderScan source code
security analyzer.
6. Disclosure Timeline
======================
2016/11/11 Vulnerability discovered
2017/03/31 Vendor contacted
2017/04/28 Vendor contacted
2017/05/08 Vendor responded
2018/01/10 Advisory released to the public
7. About DefenseCode
====================
DefenseCode L.L.C. delivers products and services designed to analyze
and test web, desktop and mobile applications for security
vulnerabilities.
DefenseCode ThunderScan is a SAST (Static Application Security
Testing, WhiteBox Testing) solution for performing extensive security
audits of application source code. ThunderScan SAST performs fast and
accurate analyses of large and complex source code projects delivering
precise results and low false positive rate.
DefenseCode WebScanner is a DAST (Dynamic Application Security
Testing, BlackBox Testing) solution for comprehensive security audits
of active web applications. WebScanner will test a website's security
by carrying out a large number of attacks using the most advanced
techniques, just as a real attacker would.
Subscribe for free software trial on our website
http://www.defensecode.com/ .
E-mail: defensecode[at]defensecode.com
Website: http://www.defensecode.com
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