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AUSCERT External Security Bulletin Redistribution
ESB-2020.1589
Advisory (icsa-20-119-01) LCDS LAquis SCADA
5 May 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: LCDS LAquis SCADA
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Unauthorised Access -- Existing Account
Create Arbitrary Files -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-10622 CVE-2020-10618
Original Bulletin:
https://www.us-cert.gov/ics/advisories/icsa-20-119-01
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ICS Advisory (ICSA-20-119-01)
LCDS LAquis SCADA
Original release date: April 28, 2020
Legal Notice
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 6.5
o ATTENTION: Low skill level to exploit
o Vendor: LCDS-Leao Consultoria e Desenvolvimento de Sistemas LTDA ME
o Equipment: LAquis SCADA
o Vulnerabilities: Exposure of Sensitive Information to an Unauthorized
Actor, Improper Input Validation
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow unauthorized
attackers to view sensitive information and create files in arbitrary
locations.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of LAquis SCADA are affected:
o LAquis SCADA Versions 4.3.1 and prior
3.2 VULNERABILITY OVERVIEW
3.2.1 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200
The affected product is vulnerable to sensitive information exposure by
unauthorized users.
CVE-2020-10618 has been assigned to this vulnerability. A CVSS v3 base score of
5.5 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/
C:H/I:N/A:N ).
3.2.2 IMPROPER INPUT VALIDATION CWE-20
The affected product is vulnerable to arbitrary file creation by unauthorized
users.
CVE-2020-10622 has been assigned to this vulnerability. A CVSS v3 base score of
6.5 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:H/UI:R/S:U/
C:H/I:H/A:H ).
3.3 BACKGROUND
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
3.4 RESEARCHER
Natnael Samson (@NattiSamson) working with Trend Micro's Zero Day Initiative
reported these vulnerabilities to CISA.
4. MITIGATIONS
LCDS recommends users update to the latest version of LAquis SCADA .
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
CISA reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.
o Ensure that principles of least privilege are followed.
o Restrict physical access to critical systems.
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 these vulnerabilities. These
vulnerabilities are not exploitable remotely.
For any questions related to this report, please contact the CISA at:
Email: CISAservicedesk@cisa.dhs.gov
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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