9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
30.9%
ICS-CERT originally released Advisory ICSA-12-025-02P 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 InstituteβInformation and Communication Security Technology Center (ICST) identified an uncontrolled search path element vulnerability (often called DLL hijacking), commonly referred to as DLL Hijacking, in the 7-Technologies (7T) TERMIS 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.
The following products and versions are affected:
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.
7T, based in Denmark, creates monitoring and control systems that are primarily used in the United States, Europe, and South Asia. 7T TERMIS software is used for district energy network management.
The 7T TERMIS software is vulnerable to DLL Hijacking.CWE-427: Uncontrolled Search Path Element, http://cwe.mitre.org/data/definitions/427.html, website last accessed February 15, 2012. 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.
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CVE-2012-0223 has been assigned to this vulnerability.
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This vulnerability may be exploitable from a remote machine.
No known public exploits specifically target this vulnerability.
An attacker requires a moderate skill level to exploit this vulnerability.
7T has developed a patch to address this vulnerability, which can be accessed here: <http://termis.s3.amazonaws.com/TERMIS_2.10_18-01-2012.exe>. Users may need to uninstall an earlier version of the application before installing this update.
ICS-CERT encourages asset owners to take additional defensive measures to protect against this and other cybersecurity risks.
The Control Systems Security Program (CSSP) also provides a section for control systems security recommended practices on the CSSP web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to ICS-CERT for tracking and correlation against other incidents. ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to taking defensive measures.
In addition, ICS-CERT recommends that users take the following measures to protect themselves from social engineering attacks:
termis.s3.amazonaws.com/TERMIS_2.10_18-01-2012.exe
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