Operating System:

[Win]

Published:

06 February 2019

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0344
          Multiple vulnerabilities have been identified in AVEVA
                 InduSoft Web Studio and InTouch Edge HMI
                              6 February 2019

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

Product:           AVEVA InduSoft Web Studio and InTouch Edge HMI
Publisher:         ICS-CERT
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-6545 CVE-2019-6543 

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSA-19-036-01

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Advisory (ICSA-19-036-01)

AVEVA InduSoft Web Studio and InTouch Edge HMI

Original release date: February 05, 2019

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: AVEVA Software, LLC (AVEVA)

Equipment: InduSoft Web Studio and InTouch Edge HMI (formerly InTouch Machine
Edition)

Vulnerabilities: Missing Authentication for Critical Function, Resource 
Injection

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow a remote attacker
to execute an arbitrary process using a specially crafted database connection
configuration file.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of AVEVA products are affected:

InduSoft Web Studio prior to Version 8.1 SP3, and

InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 
Update

3.2 VULNERABILITY OVERVIEW

3.2.1 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306

Code is executed under the program runtime privileges, which could lead to the
compromise of the machine.

CVE-2019-6543 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).

3.2.2 IMPROPER CONTROL OF RESOURCE IDENTIFIERS ('RESOURCE INJECTION') CWE-99

An unauthenticated remote user could use a specially crafted database 
connection configuration file to execute an arbitrary process on the server 
machine.

CVE-2019-6545has 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

CRITICAL INFRASTRUCTURE SECTORS: Chemical, Commercial Facilities, Critical 
Manufacturing, Energy, Food and Agriculture, Transportation Systems, and Water
and Wastewater

COUNTRIES/AREAS DEPLOYED: Worldwide

COMPANY HEADQUARTERS LOCATION: United Kingdom

3.4 RESEARCHER

AVEVA, working with Tenable Research, reported these vulnerabilities to NCCIC.

4. MITIGATIONS

AVEVA recommends affected users upgrade to the latest version of affected 
products. The following security updates address the vulnerabilities outlined
in this advisory. Software updates can be downloaded from the Global Customer
Support Software Download area or from the links below:

The latest version of InduSoft Web Studio can be found at:

http://download.indusoft.com/81.3.0/IWS81.3.0.zip

The latest version of InTouch Edge HMI can be found at (login required): 
https://softwaresupportsp.schneider-electric.com/#/producthub/details?id=52354

For information on how to reach AVEVA support for a specific product, please 
refer to these links:

AVEVA Software Global Customer Support and InduSoft Support.

For the latest security information and security updates, please visit AVEVAs
Security Central (login required) and InduSoft Security Updates.

AVEVA has published Security Bulletin LFSEC00000133 on their website at the 
following location: 
https://sw.aveva.com/hubfs/assets-2018/pdf/security-bulletin/SecurityBulletin_LFSec133.pdf

NCCIC recommends users take defensive measures to minimize the risk of 
exploitation of this vulnerability. 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.

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 these vulnerabilities.

Contact Information

For any questions related to this report, please contact the NCCIC at:

Email: NCCICCUSTOMERSERVICE@hq.dhs.gov

Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information: 
http://ics-cert.us-cert.gov

or incident reporting: https://ics-cert.us-cert.gov/Report-Incident?

The NCCIC 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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