Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2015.2379
Cogent DataHub Code Injection Vulnerability
10 September 2015
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cogent DataHub
Publisher: ICS-CERT
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-3789
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-15-246-01
- --------------------------BEGIN INCLUDED TEXT--------------------
Advisory (ICSA-15-246-01)
Cogent DataHub Code Injection Vulnerability
Original release date: September 03, 2015
Legal Notice
All information products included in http://ics-cert.us-cert.gov are provided
"as is" for informational purposes only. The Department of Homeland Security
(DHS) does not provide any warranties of any kind regarding any information
contained within. DHS does not endorse any commercial product or service,
referenced in this product or otherwise. Further dissemination of this
product is governed by the Traffic Light Protocol (TLP) marking in the
header. For more information about TLP, see http://www.us-cert.gov/tlp/.
OVERVIEW
NCCIC/ICS-CERT has become aware of a code injection vulnerability affecting
the Cogent DataHub application produced by Cogent Real-Time Systems,
Inc. An anonymous security researcher reported this vulnerability to HP's
Zero Day Initiative (ZDI). A patch to mitigate this issue was released on
September 2, 2015.
This vulnerability could be exploited remotely.
AFFECTED PRODUCTS
The following Cogent DataHub versions are affected:
Cogent DataHub, Version 7.3.8 and earlier.
IMPACT
Successful exploitation of this vulnerability could allow an attacker to
turn on an insecure processing mode in the web server, which subsequently
allows the attacker to send arbitrary script commands to the server. These
script commands can result in remote code execution, denial of service,
and information disclosure.
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
Cogent is a Canadian-based company that produces middleware applications
that are used to interface with control systems.
The Cogent DataHub product is a real-time middleware solution and is deployed
across several sectors including Chemical, Commercial Facilities, Critical
Manufacturing, Energy, Financial Services, and others. These products are
used worldwide, but primarily in the United States and Great Britain.
VULNERABILITY CHARACTERIZATION
VULNERABILITY OVERVIEW
CODE INJECTION[a]
If an attacker sends a request to any Gamma script file that uses a
certain class, it can then turn on an insecure processing mode in the web
server. The specific flaw exists because of an insecure processing mode
in the ajax pseudo-URL handler within the Cogent DataHub web server.
CVE-2014-3789[b] has been assigned to this vulnerability. ZDI has
calculated a CVSS v2 base score of 7.5; the CVSS vector string is
(AV:N/AC:L/Au:N/C:P/I:P/A:P).[c]
VULNERABILITY DETAILS
EXPLOITABILITY
This vulnerability could be exploited remotely.
EXISTENCE OF EXPLOIT
No known public exploits specifically target this vulnerability.
DIFFICULTY
An attacker with a low skill would be able to exploit this vulnerability.
MITIGATION
Cogent has fixed this vulnerability in Version 7.3.9 of DataHub. This is a
free upgrade for any customer running V7.x. Cogent advises that customers
running versions prior to Version 7.3.9 do one of the following:
Upgrade to Cogent DataHub Version 7.3.9 from:
http://www.cogentdatahub.com/Download_Software.html, or
Disable the web server component in the Cogent DataHub installation, or
Configure network security to block access to the Cogent DataHub web
server from untrusted locations, or
Delete the file: C:\Program files (x86)\Cogent\Cogent
DataHub\require\AJAXSupport.g and then re-start the Cogent DataHub
process.
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 and/or systems,
and ensure that they are not accessible from 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 VPNs may have vulnerabilities
and should be updated to the most current version available. Also
recognize that VPN is only as secure as the connected devices.
ICS-CERT also provides a section for control systems
security recommended practices on the ICS-CERT web page at:
http://ics-cert.us-cert.gov/content/recommended-practices. Several
recommended practices are available for reading and download, including
Improving Industrial Control Systems Cybersecurity with Defense-in-Depth
Strategies. ICS-CERT reminds organizations to perform proper impact analysis
and risk assessment prior to deploying defensive measures.
Additional mitigation guidance and recommended practices are
publicly available in the ICS-CERT Technical Information Paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies, that is available for download from the ICS-CERT web site
(http://ics-cert.us-cert.gov/).
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.
a.
CWE-94: Improper Control of Generation of Code ("Code Injection"),
http://cwe.mitre.org/data/definitions/94.html, web site last accessed
September 03, 2015.
b.
NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-3789,
web site last accessed September 03, 2015.
c.
CVSS Calculator,
http://nvd.nist.gov/cvss.cfm?version=2&vector=AV:N/AC:L/Au:N/C:P/I:P/A:P,
web site last accessed September 03, 2015.
Contact Information
For any questions related to this report, please contact ICS-CERT at:
Email: ics-cert@hq.dhs.gov
Toll Free: 1-877-776-7585
International Callers: (208) 526-0900
For industrial control systems security information and incident reporting:
http://ics-cert.us-cert.gov
ICS-CERT continuously strives to improve its products and services. You
can help by choosing one of the links below to provide feedback about
this product.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=SG3L
-----END PGP SIGNATURE-----