-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.1970
                 Advisory (icsa-21-154-01) Advantech iView
                                7 June 2021

===========================================================================

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

Product:           Advantech iView
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-32932 CVE-2021-32930 

Original Bulletin: 
   https://us-cert.cisa.gov/ics/advisories/icsa-21-154-01

- --------------------------BEGIN INCLUDED TEXT--------------------

ICS Advisory (ICSA-21-154-01)

Advantech iView

Original release date: June 03, 2021

Legal Notice

All information products included in https://us-cert.cisa.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://us-cert.cisa.gov/tlp/ .



1. EXECUTIVE SUMMARY

  o CVSS v3 9.1
  o ATTENTION: Exploitable remotely/low attack complexity
  o Vendor: Advantech
  o Equipment: iView
  o Vulnerabilities: Missing Authentication for Critical Function, SQL
    Injection

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to
disclose information and perform remote code execution.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Advantech's iView product are affected:

  o iView versions prior to v5.7.03.6182

3.2 VULNERABILITY OVERVIEW

3.2.1 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306

The affected product's configuration is vulnerable due to missing
authentication, which may allow an attacker to change configurations and
execute arbitrary code.

CVE-2021-32930 has been assigned to this vulnerability. A CVSS v3 base score of
7.5 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/
C:N/I:N/A:H ).

3.2.2 IMPROPER NUETRALIZATION OF SPECIAL ELEMENTS USED IN AN SQL COMMAND ('SQL
INJECTION') CWE-89

The affected product is vulnerable to a SQL injection, which may allow an
unauthorized attacker to disclose information.

CVE-2021-32932 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/
C:H/I:N/A:H ).

3.3 BACKGROUND

  o CRITICAL INFRASTRUCTURE SECTORS: Multiple
  o COUNTRIES/AREAS DEPLOYED: East Asia, Europe, United States
  o COMPANY HEADQUARTERS LOCATION: Taiwan

3.4 RESEARCHER

Selim Enes Karaduman @enesdex, working with Trend Micro's Zero Day Initiative,
reported these vulnerabilities to CISA.

4. MITIGATIONS

Advantech recommends updating firmware to Version 5.7.03.6182 to address these
vulnerabilities.

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
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.

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.

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=D13E
-----END PGP SIGNATURE-----