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AUSCERT External Security Bulletin Redistribution
Advisory (icsa-21-124-01) Advantech WISE-PaaS RMM
5 May 2021
AusCERT Security Bulletin Summary
Product: Advantech WISE-PaaS RMM
Operating System: Network Appliance
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Resolution: Alternate Program
CVE Names: CVE-2021-27437
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ICS Advisory (ICSA-21-124-01)
Advantech WISE-PaaS RMM
Original release date: May 04, 2021
All information products included in https://us-cert.cisa.gov/ics are provided
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1. EXECUTIVE SUMMARY
o CVSS v3 9.1
o ATTENTION: Exploitable remotely/low attack complexity
o Vendor: Advantech
o Equipment: WISE-PaaS/RMM
o Vulnerability: Use of Hard-coded Credentials
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker to obtain
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following Advantech products are affected:
o WISE-PaaS/RMM versions prior to 9.0.1
3.2 VULNERABILITY OVERVIEW
3.2.1 USE OF HARD-CODED CREDENTIALS CWE-798
The affected product allows attackers to obtain sensitive information from the
WISE-PaaS dashboard. The system contains a hard-coded administrator username
and password that can be used to query Grafana APIs. Authentication is not
required for exploitation.
CVE-2021-27437 has been assigned to this vulnerability. A CVSS v3 base score of
9.1 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/
o CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Energy, Water and
o COUNTRIES/AREAS DEPLOYED: East Asia, Europe, United States
o COMPANY HEADQUARTERS LOCATION: Taiwan
Chizuru Toyama of TXOne IoT/ICS Security Research Labs, working with Trend
Micro's Zero Day Initiative, reported this vulnerability to CISA.
Advantech no longer sells or maintains RMM and considers it to be an
Advantech recommends users replace the device with a succeeding model such as
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
o Minimize network exposure for all control system devices and/or systems,
and ensure that they are not accessible from the Internet .
o Locate control system networks and remote devices behind firewalls, and
isolate them from the business network.
o When remote access is required, use secure methods, such as Virtual Private
Networks (VPNs), recognizing VPNs may have vulnerabilities and should be
updated to the most current version available. Also recognize VPN is only
as secure as its connected devices.
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.cisa.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.cisa.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.
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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