Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2023.0508
Advisory (icsa-23-026-03) Snap One Wattbox WB-300-IP-3
27 January 2023
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Snap One Wattbox WB-300-IP-3
Publisher: ICS-CERT
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2023-24020 CVE-2023-23582 CVE-2023-22389
CVE-2023-22315
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-23-026-03
Comment: CVSS (Max): 7.5 CVE-2023-24020 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
CVSS Source: ICS-CERT
Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- --------------------------BEGIN INCLUDED TEXT--------------------
ICS Advisory (ICSA-23-026-03)
Snap One Wattbox WB-300-IP-3
Original release date: January 26, 2023
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 7.5
o ATTENTION: Exploitable remotely/low attack complexity
o Vendor: Snap One
o Equipment: Wattbox WB-300-IP -3
o Vulnerabilities: Improper Restriction of Excessive Authentication Attempts,
Heap-based Buffer Overflow, Plaintext Storage of a Password, Insufficient
Verification of Data Authenticity
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could lead to remote code
execution on the device, password brute force, and bricking of the device.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of Snap One Wattbox WB-300-IP-3, a surge protector, are
affected:
o Wattbox WB-300-IP-3: versions WB10.9a17 and prior
3.2 VULNERABILITY OVERVIEW
3.2.1 IMPROPER RESTRICTION OF EXCESSIVE AUTHENTICATION ATTEMPTS CWE-307
Snap One Wattbox WB-300-IP-3 versions WB10.9a17 and prior could bypass the
brute force protection, allowing multiple attempts to force a login.
CVE-2023-24020 has been assigned to this vulnerability. A CVSS v3 base score of
7.5 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/C:N/
I:H/A:N ).
3.2.2 HEAP-BASED BUFFER OVERFLOW CWE-122
Snap One Wattbox WB-300-IP-3 versions WB10.9a17 and prior are vulnerable to a
heap-based buffer overflow, which could allow an attacker to execute arbitrary
code or crash the device remotely.
CVE-2023-23582 has been assigned to this vulnerability. A CVSS v3 base score of
5.3 has been assigned; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/C:N/
I:N/A:L ).
3.2.3 PLAINTEXT STORAGE OF A PASSWORD CWE-256
Snap One Wattbox WB-300-IP-3 versions WB10.9a17 and prior store passwords in a
plaintext file when the device configuration is exported via Save/Restore->
Backup Settings, which could be read by any user accessing the file.
CVE-2023-22389 has been assigned to this vulnerability. A CVSS v3 base score of
5.7 has been assigned; the CVSS vector string is ( AV:A/AC:L/PR:N/UI:R/S:U/C:H/
I:N/A:N ).
3.2.4 INSUFFICIENT VERIFICATION OF DATA AUTHENTICITY CWE-345
Snap One Wattbox WB-300-IP-3 versions WB10.9a17 and prior use a proprietary
local area network (LAN) protocol that does not verify updates to the device.
An attacker could upload a malformed update file to the device and execute
arbitrary code.
CVE-2023-22315 has been assigned to this vulnerability. A CVSS v3 base score of
6.7 has been assigned; the CVSS vector string is ( AV:L/AC:H/PR:N/UI:N/S:U/C:N/
I:H/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: United States
3.4 RESEARCHER
Uri Katz of Claroty Research reported these vulnerabilities to CISA.
4. MITIGATIONS
Snap One has released the following updates for the affected products:
o Version WB10.B929 (login required)
CISA recommends users take defensive measures to minimize the risk of
exploitation of these vulnerabilities. Specifically, users should:
o Minimize network exposure for all control system devices and/or systems,
and ensure they are not accessible from the Internet .
o Locate control system networks and remote devices behind firewalls and
isolate them from business networks.
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 at cisa.gov/ics . Several CISA products detailing cyber
defense best 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 at cisa.gov/ics in the technical information paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies .
Organizations observing suspected malicious activity should follow established
internal procedures and report 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
- --------------------------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: https://auscert.org.au/gpg-key/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=ZBtC
-----END PGP SIGNATURE-----