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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.4727
             Advisory (icsa-19-353-02) Equinox Control Expert
                             20 December 2019

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

Product:           Equinox Control Expert
Publisher:         ICS-CERT
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution:        None
CVE Names:         CVE-2019-18234  

Original Bulletin: 
   https://www.us-cert.gov/ics/advisories/icsa-19-353-02

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ICS Advisory (ICSA-19-353-02)

Equinox Control Expert

Original release date: December 19, 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

  o CVSS v3 9.8
  o ATTENTION: Exploitable remotely/low skill level to exploit
  o Vendor: Equinox
  o Equipment: Control Expert
  o Vulnerability: Improper Neutralization of Special Elements used in an SQL
    Command ('SQL Injection')

2. RISK EVALUATION

Successful exploitation of this vulnerability may allow remote code execution.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Control Expert, am HMI/SCADA management platform, are
affected:

  o Control Expert, all current and older versions could be affected.

3.2 VULNERABILITY OVERVIEW

3.2.1 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN SQL COMMAND (SQL
INJECTION) CWE-89

The affected product is vulnerable to an SQL injection attack, which may allow
an attacker to remotely execute arbitrary code.

CVE-2019-18234 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: Multiple
  o COUNTRIES/AREAS DEPLOYED: Argentina, Uruguay
  o COMPANY HEADQUARTERS LOCATION: Argentina

3.4 RESEARCHER

Juan Pablo Lopez Yacubian reported this vulnerability to CISA.

4. MITIGATIONS

Equinox has not responded to requests to provide mitigating details regarding
this vulnerability. CISA will update this vulnerability with any information
provided by the vendor.

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

  o Where possible, obtain security updates from vendor and apply available
    patches.
  o Minimize network exposure for all control system devices and/or systems,
    and ensure that they are not accessible from the Internet .
  o Implement firewall rules to block or restrict Internet and intranet access
    for database systems.
  o Harden internal systems against the potential threat posed by a compromised
    system on the local network. (Do not rely on firewalls to prevent access to
    insecure systems; secure them).
  o Implement firewall rules to block known malicious IP addresses.
  o Locate control system networks and remote devices behind firewalls, and
    isolate them from the business network.
  o Run only the minimum required applications and services necessary to
    perform their intended function. Where possible, disable all unnecessary
    applications and services.
  o Disable potentially harmful SQL stored procedure calls.
  o Do not disclose internal database structure, table names, or account names.
  o Sanitize or validate input by ensuring data is properly typed and does not
    contain escaped code. Consider using type-safe stored procedures/prepared
    statements.
  o Delete/disable unnecessary accounts (including default accounts).
  o Delete/disable unnecessary stored procedures/prepared statements.

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

CISA also provides a section for control systems security recommended practices
on the ICS webpage on us-cert.gov . 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 webpage on us-cert.gov 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 CISA for tracking
and correlation against other incidents.

No known public exploits specifically target this vulnerability.

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