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             AUSCERT External Security Bulletin Redistribution

                         MULTIPLE VULNERABILITIES
                              29 January 2013


        AusCERT Security Bulletin Summary

Product:           GE Intelligent Platforms Proficy Cimplicity
Publisher:         US-CERT
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Access Privileged Data          -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-0654 CVE-2013-0653 

Original Bulletin: 

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January 22, 2013


This advisory provides mitigation details for multiple vulnerabilities that 
impact GE Intelligent Platforms Proficy HMI/SCADA.CIMPLICITY. General Electric
(GE) has addressed two vulnerabilities in GE Intelligent Platforms Proficy 
HMI/SCADA.CIMPLICITY: a directory transversal vulnerability and improper input
validation vulnerability. GE has released two security advisories (GEIP12-13 
and GEIP12-19) available on the GE Intelligent Platforms support Web site to 
inform customers about these vulnerabilities. A remote attacker could exploit
these vulnerabilities.


The following GE Intelligent Platforms products are affected:

* Proficy HMI/SCADA CIMPLICITY: Version 4.01 and greater, and

* Proficy Process Systems with CIMPLICITY.


If the vulnerabilities are exploited, they could allow an unauthenticated 
remote attacker to cause the CIMPLICITY built-in Web server to crash or to run
arbitrary commands on a server running the affected software, or could 
potentially allow an attacker to take control of the CIMPLICITY server. An 
attacker can exploit the vulnerabilities by sending specially crafted HTTP 
requests to the listening service. The attacks do not require authentication 
and can be conducted remotely. The vulnerable components are not enabled by 

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.


According to GE, Proficy HMI/SCADACIMPLICITY is a Client/Server-based 
human-machine interface/supervisory control and data acquisition (HMI/SCADA) 
application, which is deployed across multiple industries.




A CIMPLICITY WebView CimWeb component (substitute.bcl) does not accurately 
check input variables. By sending a maliciously crafted packet to Port 80/TCP,
an attacker could cause a directory traversal and view or download files from
the server. The vulnerable component is installed by default but is enabled 
only when Web-based access to CIMPLICITY is in use.

CVE-2013-0653 [b] has been assigned to this vulnerability. A CVSS v2 base 
score of 4.3 has been assigned; the CVSS vector string is 
(AV:N/AC:M/Au:N/C:P/I:N/A:N). [c]


The CimWebServer does not properly validate inputted information. By sending a
specially crafted packet, an attacker could crash the built-in Web server, run
arbitrary commands on a server running the affected software, or take control
of the server. The vulnerable CIMPLICITY built-in Web server component is not
enabled by default.

GE has created patches and has detailed configuration recommendations to 
mitigate these vulnerabilities:

* GEIP12-13 at


* GEIP12-19 at


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, 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 

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.[g] ICS-CERT reminds 
organizations to perform proper impact analysis and risk assessment prior to 
taking defensive measures.

Additional mitigation guidance and recommended practices are publicly 
available in the ICS-CERT Technical Information Paper, ICS-TIP-12-146-01A - 
Targeted Cyber Intrusion Detection and Mitigation Strategies,h that is 
available for download from the ICS-CERT Web page (www.ics-cert.org).

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.

Previous recommendations can be used as needed. List other products that are 
specific to the topic (i.e., phishing mitigations):

In addition, ICS-CERT recommends that users take the following measures to 
protect themselves from social engineering attacks:

1. Do not click Web links or open unsolicited attachments in email messages.

2. Refer to Recognizing and Avoiding Email Scamsi for more information on 
avoiding email scams.

3. Refer to Avoiding Social Engineering and Phishing Attacksj for more 
information on social engineering attacks.

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

Email: ics-cert@hq.dhs.gov

Toll Free: 1-877-776-7585

For industrial control systems security information and incident reporting: 

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/.


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.

a. CWE, http://cwe.mitre.org/data/definitions/22.html, CWE-22: Path 
Transversal, Web site last accessed January 22, 2013.

b. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-0653 , NIST 
uses this advisory to create the CVE Web site report. This Web site will be 
active sometime after publication of this advisory.

c. CVSS Calculator, 
Web site last visited January 22, 2013.

d. CWE, http://cwe.mitre.org/data/definitions/20.html, CWE-20: Improper Input
Validation, Web site last accessed January 22, 2013.

e. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-0654 , NIST uses 
this advisory to create the CVE Web site report. This Web site will be active
sometime after publication of this advisory.

f. CVSS Calculator, 
Web site last visited January 16, 2013.

g. CSSP Recommended Practices, 
Web site last accessed January 22, 2013.

h. Targeted Cyber Intrusion Detection and Mitigation Strategies, 
http://www.us-cert.gov/control_systems/pdf/ICS-TIP-12-146-01A.pdf, Web site 
last accessed January 22, 2013.

i. Recognizing and Avoiding Email Scams, 
http://www.us-cert.gov/reading_room/emailscams_0905.pdf, Web site last 
accessed January 22, 2013.

j. National Cyber Alert System Cyber Security Tip ST04-014, 
http://www.us-cert.gov/cas/tips/ST04-014.html, Web site last accessed January
22, 2013.

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