-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT External Security Bulletin Redistribution
Advisory (icsa-21-012-01) Schneider Electric EcoStruxure
13 January 2021
AusCERT Security Bulletin Summary
Product: Schneider Electric EcoStruxure Power Build-Rapsody
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
CVE Names: CVE-2021-22698 CVE-2021-22697
- --------------------------BEGIN INCLUDED TEXT--------------------
ICS Advisory (ICSA-21-012-01)
Schneider Electric EcoStruxure Power Build-Rapsody
Original release date: January 12, 2021
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 7.8
o ATTENTION: Low skill level to exploit
o Vendor: Schneider Electric
o Equipment: EcoStruxure Power Build - Rapsody
o Vulnerability: Unrestricted Upload of File with Dangerous Type
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow a local attacker to
upload a malicious SSD file, resulting in a use-after-free condition or a
stack-based buffer overflow.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
EcoStruxure Power Build - Rapsody software Versions 2.1.13 and prior
3.2 VULNERABILITY OVERVIEW
3.2.1 UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE CWE-434
When a malicious SSD file is uploaded and improperly parsed, an attacker could
cause a use-after-free condition or stack-based buffer overflow resulting in
remote code execution.
CVE-2021-22697 and CVE-2021-22698 have been assigned to this vulnerability. A
CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( AV:L/
o CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Energy, Food and
Agriculture, Government Facilities, Transportation Systems, Water and
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: France
rgod, working with Trend Micro's Zero Day Initiative, reported this
vulnerability to CISA.
Schneider Electric reports fixes will be available in the first half of 2021.
Until then, Schneider recommends affected users immediately apply the following
mitigations to reduce the risk of exploit:
o Apply the principle of least privilege to limit access to the computer
running the Rapsody software.
o Install application whitelisting software on the computer to block the
execution of malicious code.
o Install antivirus on the computer and keep it up to date.
All updates, including details on affected products and remediation plans, can
be found by subscribing to Schneider Electric's security notification service .
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 that VPNs may have vulnerabilities and should
be updated to the most current version available. Also recognize that VPN
is only as secure as the 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. 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.
- --------------------------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 firstname.lastname@example.org
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:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: email@example.com
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-----
-----END PGP SIGNATURE-----