ICS-CERT: 7T AQUIS DLL Hijacking Vulnerability

Monday, February 20, 2012

Infosec Island Admin

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ICS-CERT originally released Advisory ICSA-12-025-01P on the US-CERT secure portal on January 25, 2012. This web page release was delayed to allow users time to download and install the update.

Researcher Kuang-Chun Hung of the Security Research and Service Institute−Information and Communication Security Technology Center (ICST) identified an uncontrolled search path element vulnerability, commonly referred to as DLL Hijacking, in the 7-Technologies (7T) AQUIS software.

ICS-CERT has coordinated this report with 7T, and 7T has created a patch that resolves this vulnerability. ICST has confirmed this patch fully resolves the reported vulnerability.

AFFECTED PRODUCTS

The following products and versions are affected:

• AQUIS V1.5 dated October 13, 2011, and any previous version.

IMPACT

A successful exploit of this vulnerability could lead to arbitrary code execution. Impact to individual organizations depends on many factors that are unique to each organization. ICS-CERT recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation.

BACKGROUND

7T, based in Denmark, creates monitoring and control systems that are used primarily in the United States, Europe, Northern Africa, and Asia. 7T AQUIS software is a water network simulation platform for improving system design and operation. AQUIS may be in use in other parts of the world using a freely licensed version.

VULNERABILITY OVERVIEW

The 7T AQUIS software is vulnerable to DLL Hijacking. An attacker may place a malicious DLL in a directory where it will be loaded before the valid DLL. An attacker must have access to the host file system to exploit this vulnerability. If exploited, this vulnerability may allow execution of arbitrary code. CVE-2012-0224 has been assigned to this vulnerability.

EXPLOITABILITY: This vulnerability may be exploitable from a remote machine. If exploited, this vulnerability may allow execution of arbitrary code.

EXISTENCE OF EXPLOIT: No known public exploits specifically target this vulnerability.

DIFFICULTY: An attacker requires a moderate skill level to exploit this vulnerability.

MITIGATION

7T has developed a patch to address this vulnerability, which can be accessed here:

Users may need to uninstall an earlier version of the application before installing this update.

The full ICS-CERT advisory can be founde here:

Source:  http://www.us-cert.gov/control_systems/pdf/ICSA-12-025-01.pdf

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