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AUSCERT External Security Bulletin Redistribution
ICS Advisory (ICSA-20-287-02) - LCDS LAquis SCADA
14 October 2020
AusCERT Security Bulletin Summary
Product: LCDS LAquis SCADA
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
CVE Names: CVE-2020-25188
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ICS Advisory (ICSA-20-287-02)
LCDS LAquis SCADA
Original release date: October 13, 2020
All information products included in https://us-cert.gov/ics 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 https://www.us-cert.gov/tlp/ .
1. EXECUTIVE SUMMARY
o CVSS v3 7.8
o ATTENTION: Low skill level to exploit
o Vendor: LCDS-Leao Consultoria e Desenvolvimento de Sistemas Ltda ME
o Equipment: LAquis SCADA
o Vulnerability: Out-of-bounds Read
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker to
execute code under the privileges of the application.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of LAquis SCADA are affected:
o LAquis SCADA versions prior to 184.108.40.2060
3.2 VULNERABILITY OVERVIEW
3.2.1 OUT-OF-BOUNDS READ CWE-125
An attacker who convinces a valid user to open a specially crafted project file
to exploit could execute code under the privileges of the application due to an
out-of-bounds read vulnerability.
CVE-2020-25188 has been assigned to this vulnerability. A CVSS v3 base score of
7.8 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/
o CRITICAL INFRASTRUCTURE SECTORS: Chemical, Commercial Facilities, Energy,
Food and Agriculture, Transportation Systems, Water and Wastewater Systems
o COUNTRIES/AREAS DEPLOYED: South America
o COMPANY HEADQUARTERS LOCATION: Brazil
An anonymous researcher working with Trend Micro's Zero Day Initiative reported
this vulnerability to CISA.
LCDS recommends users update to Version 220.127.116.110 or later .
CISA recommends users take the following measures to protect themselves from
social engineering attacks:
Only use project files from trusted sources.
o Do not click web links or open unsolicited attachments in email messages.
o Refer to Recognizing and Avoiding Email Scams for more information on
avoiding email scams.
o Refer to Avoiding Social Engineering and Phishing Attacks for more
information on social engineering attacks.
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
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. This
vulnerability is not exploitable remotely.
For any questions related to this report, please contact the CISA at:
Toll Free: 1-888-282-0870
CISA 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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