-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.2721
Advisory (icsa-20-219-02) Advantech WebAccess HMI Designer
7 August 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: WebAccess HMI Designer
Publisher: US-CERT
Operating System: Network Appliance
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-16229 CVE-2020-16217 CVE-2020-16215
CVE-2020-16213 CVE-2020-16211 CVE-2020-16207
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-20-219-02
- --------------------------BEGIN INCLUDED TEXT--------------------
ICS Advisory (ICSA-20-219-02)
Advantech WebAccess HMI Designer
Original release date: August 06, 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 9.8
o ATTENTION: Exploitable remotely/low skill level to exploit
o Vendor: Advantech
o Equipment: WebAccess HMI Designer
o Vulnerabilities: Heap-based Buffer Overflow, Out-of-bounds Read,
Out-of-bounds Write, Type Confusion, Stack-based Buffer Overflow, Double
Free
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to
read/modify information, execute arbitrary code, and/or crash the application.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of Advantech WebAccess HMI Designer, a Human Machine
Interface (HMI) runtime development software, are affected:
o WebAccess HMI Designer Versions 2.1.9.31 and prior
3.2 VULNERABILITY OVERVIEW
3.2.1 HEAP-BASED BUFFER OVERFLOW CWE-122
Multiple heap-based buffer overflow vulnerabilities may be exploited by opening
specially crafted project files that may overflow the heap, which may allow
remote code execution, disclosure/modification of information, or cause the
application to crash.
CVE-2020-16207 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/
C:H/I:H/A:H ).
3.2.2 OUT-OF-BOUNDS READ CWE-125
An out-of-bounds read vulnerability may be exploited by processing specially
crafted project files, which may allow an attacker to read information.
CVE-2020-16211 has been assigned to this vulnerability. A CVSS v3 base score of
3.3 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:R/S:U/
C:L/I:N/A:N ).
3.2.3 OUT-OF-BOUNDS WRITE CWE-787
Processing specially crafted project files lacking proper validation of user
supplied data may cause the system to write outside the intended buffer area,
which may allow remote code execution, disclosure/modification of information,
or cause the application to crash.
CVE-2020-16213 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/
C:H/I:H/A:H ).
3.2.4 ACCESS OF RESOURCE USING INCOMPATIBLE TYPE ('TYPE CONFUSION') CWE-843
Processing specially crafted project files lacking proper validation of user
supplied data may cause a type confusion condition, which may allow remote code
execution, disclosure/modification of information, or cause the application to
crash.
CVE-2020-16229 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/
C:H/I:H/A:H ).
3.2.5 STACK-BASED BUFFER OVERFLOW CWE-121
Processing specially crafted project files lacking proper validation of user
supplied data may cause a stack-based buffer overflow, which may allow remote
code execution, disclosure/modification of information, or cause the
application to crash.
CVE-2020-16215 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 ).
3.2.6 DOUBLE FREE CWE-415
A double free vulnerability caused by processing specially crafted project
files may allow remote code execution, disclosure/modification of information,
or cause the application to crash.
CVE-2020-16217 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/
C:H/I:H/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Energy, Water and
Wastewater Systems
o COUNTRIES/AREAS DEPLOYED: East Asia, Europe, United States
o COMPANY HEADQUARTERS LOCATION: Taiwan
3.4 RESEARCHER
kimiya and Natnael Samson (@NattiSamson) working with Trend Micro's Zero Day
Initiative reported these vulnerabilities to CISA.
4. MITIGATIONS
Advantech has released Version 2.1.9.81 of WebAccess HMI Designer to address
the reported vulnerabilities. Users can download the latest version of
WebAccess HMI Designer.
CISA recommends users take the following measures to protect themselves from
social engineering attacks:
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
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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=TD9U
-----END PGP SIGNATURE-----
https://www.malwaredevil.com/2020/08/07/esb-2020-2721-appliance-webaccess-hmi-designer-multiple-vulnerabilities/?utm_source=rss&utm_medium=rss&utm_campaign=esb-2020-2721-appliance-webaccess-hmi-designer-multiple-vulnerabilities
No comments:
Post a Comment