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             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.1054
                 C3-ilex EOscada Multiple vulnerabilities
                              5 November 2012

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           C3-ilex EOScada
Publisher:         US-CERT
Operating System:  Windows
Impact/Access:     Denial of Service        -- Remote/Unauthenticated
                   Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-1813 CVE-2012-1812 CVE-2012-1811
                   CVE-2012-1810  

Original Bulletin: 
   http://www.us-cert.gov/control_systems/pdf/ICSA-12-271-01.pdf

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ICS-CERT ADVISORY

ICSA-12-271-01—C3-ILEX EOSCADA MULTIPLE VULNERABILITIES

November 01, 2012

OVERVIEW

This Advisory is a follow-up release to the original Advisory which was posted 
to the US-CERT secure Portal library October 08, 2012.

Dale Peterson of Digital Bond has identified multiple vulnerabilities in the 
C3-ilex’s EOScada application that can result in data leakage and a denial-of-
service (DoS) condition. C3-ilex’s has produced a patch that resolves these 
vulnerabilities.

AFFECTED PRODUCTS

C3-ilex reports that the vulnerabilities affect all EOScada versions prior to 
11.0.19.2.

IMPACT

Successful exploitation of these vulnerabilities may cause a DoS or data 
leakage.

Impact to individual organizations depends on many factors that are unique to 
each organization. ICS-CERT recommends that organizations evaluate the impact 
of these vulnerabilities based on their operational environment, architecture, 
and product implementation.

BACKGROUND

C3-ilex’s EOScada is a real-time Windows-based Energy Management System for 
electrical, water, sewage, and gas applications. The EOScada platform features 
a distributed processing, networked configuration using PCs running Microsoft 
Windows. The EOScada product line includes PC-based Master Stations as well as 
remote terminal units (RTUs) that perform communication, data concentration, 
and connections to a variety of intelligent electronic devices (IEDs).

EOScada is used primarily in the electrical sector with some usage in the 
water and oil and natural gas sectors.

VULNERABILITY CHARACTERIZATION

VULNERABILITY OVERVIEW

IMPROPER ACCESS CONTROL
The EOS Core Scada.exe does not restrict access that causes a DoS condition 
when attached to Port 5050/TCP or Port 24004/TCP, and any random data are sent 
to either port. The application will crash and restart and will be unavailable 
to legitimate users during that time.

CVE-2012-1810 has been assigned to this vulnerability. A CVSS V2 base score of 
5.0 has also been assigned; the CVSS vector string is 
(AV:N/AC:L/Au:N/C:N/I:N/A:P).

RESOURCE MANAGEMENT ERRORS
The EOSDataServer.exe attached to Port 24006/TCP is susceptible to a Resource 
Management Error when a large amount of random data is sent to the port.

CVE-2012-1811 has been assigned to this vulnerability. A CVSS V2 base score of 
7.8 has also been assigned; the CVSS vector string is 
(AV:N/AC:L/Au:N/C:N/I:N/A:C).

DATA LEAKAGE
The eosfailoverservice.exe returns data in clear text when a connection is 
made to Port TCP/12000.

CVE-2012-1812 has been assigned to this vulnerability. A CVSS V2 base score of 
5.0 has also been assigned; the CVSS vector string is 
(AV:N/AC:L/Au:N/C:N/I:P/A:N).

RESOURCE MANAGEMENT ERRORS
The eosfailoverservice.exe attached to Port 12000/TCP is susceptible to a 
Resource Management Error when a large amount of random data is sent to the 
port.

CVE-2012-1813 has been assigned to this vulnerability. A CVSS V2 base score of 
7.8 has also been assigned; the CVSS vector string is 
(AV:N/AC:L/Au:N/C:N/I:N/A:C).

VULNERABILITY DETAILS

EXPLOITABILITY
These vulnerabilities are remotely exploitable.

EXISTENCE OF EXPLOIT
No known public exploits specifically target these vulnerabilities.

DIFFICULTY
An attacker with a low skill would be able to exploit these vulnerabilities.

MITIGATION

C3-ilex recommends customers install the EOScada patch. Customers with a 
service agreement should contact C3-ilex’s Helpdesk at helpdesk@c3ilex.com or 
by calling the Help Desk at (510) 659-8300 x 107 for instructions on how to 
obtain the release. Customers without a service agreement should contact their 
C3-ilex Sales Manager for assistance in purchasing this or a later version 
release.

ICS-CERT encourages asset owners to take additional defensive measures to 
protect against this and other cybersecurity risks.

- Minimize network exposure for all control system devices. Critical devices 
should not directly face the Internet.

- Locate control system networks and remote devices behind firewalls, 
specifically addressing traffic to the ports listed above, and isolate them 
from the business network.

- When remote access is required, use secure methods, such as Virtual Private 
Networks (VPNs), recognizing that VPN is only as secure as the connected 
devices.

ICS-CERT also provides a section for control systems security recommended 
practices on the US-CERT Web page. Several recommended practices are available 
for reading and download, including Improving Industrial Control Systems 
Cybersecurity with Defense-in-Depth Strategies.m ICS-CERT reminds 
organizations to perform proper impact analysis and risk assessment prior to 
taking defensive measures.

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 CONTACT

For any questions related to this report, please contact ICS-CERT at:

Email: ics-cert@dhs.gov 
Toll Free: 1-877-776-7585 

For industrial control systems security information and incident reporting: 
www.ics-cert.org

ICS-CERT continuously strives to improve its products and services. You can 
help by answering a short series of questions about this product at the 
following URL: https://forms.us- cert.gov/ncsd-feedback/.

DOCUMENT FAQ

What is an ICS-CERT Advisory? An ICS-CERT Advisory is intended to provide 
awareness or solicit feedback from critical infrastructure owners and 
operators concerning ongoing cyber events or activity with the potential to 
impact critical infrastructure computing networks.

When is vulnerability attribution provided to researchers? Attribution for 
vulnerability discovery is always provided to the vulnerability reporter 
unless the reporter notifies ICS-CERT that they wish to remain anonymous. 
ICS-CERT encourages researchers to coordinate vulnerability details before 
public release. The public release of vulnerability details prior to the 
development of proper mitigations may put industrial control systems and the 
public at avoidable risk.

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