ESB-2017.1910 - [Win] Schneider Electric Trio TView: Execute arbitrary code/commands - Remote/unauthenticated 2017-08-02

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1910
                       Schneider Electric Trio TView
                               2 August 2017

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

Product:           Schneider Electric Trio TView
Publisher:         ICS-CERT
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Modify Arbitrary Files          -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSA-17-213-02

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Advisory (ICSA-17-213-02)

Schneider Electric Trio TView
Original release date: August 01, 2017

Legal Notice

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CVSS v3 10.0

ATTENTION: Remotely exploitable/low skill level to exploit. Public exploits
are available.

Vendor: Schneider Electric

Equipment: Trio TView

Vulnerabilities: Multiple Vulnerabilities for Java Runtime Environment

AFFECTED PRODUCTS

The following versions of Schneider Electric Trio TView, a management and
diagnostics software, are affected:

    Trio TView Software, TBUMPROG-TVIEW, Version 3.27.0 and prior.

IMPACT

Exploitation of these vulnerabilities may allow a remote attacker to
compromise the Trio TView Management Suite.

MITIGATION

The Java Runtime Environment 1.8.0u131 is provided with TView Version
3.29.0 and is not affected by these vulnerabilities.

Schneider Electric recommends that users obtain the software with the fix
for these vulnerabilities at the following location:

http://www.schneider-electric.us/en/download/document/Trio_TView_Software_/

NCCIC/ICS-CERT recommends that users take defensive measures to minimize the
risk of exploitation of these vulnerabilities. Specifically, users should:

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

ICS-CERT 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 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.

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.

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

    Do not click web links or open unsolicited attachments in email messages.
    Refer to Recognizing and Avoiding Email Scams for more information on
    avoiding email scams.
    Refer to Avoiding Social Engineering and Phishing Attacks for more
    information on social engineering attacks.

VULNERABILITY OVERVIEW

A Java Runtime Environment is provided with TView. The Java Runtime
Environment 1.6.0u27 is reported to have multiple vulnerabilities which may
impact TView Version 3.27.0 and earlier. The breakdown of the vulnerabilities
by CVSS score is as follows:

    180 vulnerabilities were identified as having a CVSS base score
    of 7.0-10,
    161 vulnerabilities were identified as having a CVSS base score of
    4.0-6.9, and
    24 vulnerabilities were identified as having a CVSS base score of
    0.0-3.9.

For more information on these vulnerabilities, please see Schneider Electric
Security Notification SEVD-2017-199-01 at the following location:

http://www.schneider-electric.com/en/download/document/SEVD-2017-199-01/

RESEARCHER

Karn Ganeshen has reported these vulnerabilities.

BACKGROUND

Critical Infrastructure Sector: Energy

Countries/Areas Deployed: Worldwide

Company Headquarters Location: Paris, France

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.

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