ESB-2018.1652 - [Appliance] Yokogawa STARDOM Controllers: Multiple vulnerabilities 2018-06-01

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1652
          Advisory (ICSA-18-151-03) Yokogawa STARDOM Controllers
                                1 June 2018

===========================================================================

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

Product:           Yokogawa STARDOM Controllers
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Administrator Compromise -- Remote/Unauthenticated
                   Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-10592  

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSA-18-151-03

- --------------------------BEGIN INCLUDED TEXT--------------------

Advisory (ICSA-18-151-03) Yokogawa STARDOM Controllers

Original release date: May 31, 2018

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/.

1. EXECUTIVE SUMMARY

    CVSS v3 9.8
    ATTENTION: Exploitable remotely/low skill level to exploit
    Vendor: Yokogawa
    Equipment: STARDOM Controllers
    Vulnerability: Hard-coded Credentials

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to gain
access to the affected device, which could result in remote code execution.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Yokogawa reports the vulnerability affects the following STARDOM Controller 
products:

    FCJ (R4.02 and prior),
    FCN-100 (R4.02 and prior),
    FCN-RTU (R4.02 and prior), and
    FCN-500 (R4.02 and prior).

3.2 VULNERABILITY OVERVIEW

3.2.1 USE OF HARD-CODED CREDENTIALS CWE-798

The affected controllers utilize hard-coded credentials that could allow an 
attacker to gain unauthorized administrative access to the device, which could
result in remote code execution.

CVE-2018-10592 has been assigned to this vulnerability. A CVSS v3 base score 
of 9.8 has been calculated; the CVSS vector string is 
(AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

3.3 BACKGROUND

 o Critical Infrastructure Sectors: Critical Manufacturing, Energy, and Food 
   and Agriculture
 o Countries/Areas Deployed: Worldwide
 o Company Headquarters Location: Japan

3.4 RESEARCHER

VDLab of Venustech and Dongfang Electric Corporation (DEC) reported this 
vulnerability to NCCIC.

4. MITIGATIONS

Yokogawa has recommended users upgrade the FCN/FCJ software to Version R4.10 
or later and reports that the vulnerability is remediated in that version. 
Yokogawa strongly suggests all users introduce appropriate security measures 
not only for the vulnerability identified but also to the overall system.

Yokogawa recommends users with questions related to this report and 
information on obtaining the updates, please utilize the Product Inquiry 
contact details at the following location:

http://stardom.biz/

Yokogawas Security Advisory Report, YSAR-18-0004: Vulnerability of hardcoded 
password in STARDOM controllers, and other Yokogawa security reports are 
available at the following URL:

https://www.yokogawa.com/library/resources/white-papers/yokogawa-security-advisory-report-list/

NCCIC recommends users take defensive measures to minimize the risk of 
exploitation of this vulnerability. Specifically, users should:

 o Minimize and restrict remote device access where remote access is not 
   required.
 o Minimize network exposure for all control system devices and/or systems, 
   and ensure that they are not accessible from the Internet.
 o Locate control system networks and remote devices behind firewalls, and 
   isolate them from the business network.
 o 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.

NCCIC reminds organizations to perform proper impact analysis and risk 
assessment prior to deploying defensive measures.

NCCIC also provides a section for control systems security recommended 
practices on the ICS-CERT web page. Several recommended practices are 
available for reading and download, including Improving Industrial Control 
Systems Cybersecurity with Defense-in-Depth Strategies.

Additional mitigation guidance and recommended practices are publicly 
available on the ICS-CERT website in the Technical Information Paper, 
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation 
Strategies.

Organizations observing any suspected malicious activity should follow their 
established internal procedures and report their findings to NCCIC for 
tracking and correlation against other incidents.

No known public exploits specifically target this vulnerability.

- --------------------------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:

        https://www.auscert.org.au/bulletins/

===========================================================================
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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=4XrA
-----END PGP SIGNATURE-----

« Back to bulletins