27 January 2023
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 email@example.com 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: firstname.lastname@example.org 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/ iQIVAwUBY9NWzMkNZI30y1K9AQiIjg//Y8eSHw3W0t+Wj9ahbUmFd6BHvscI/th+ QP8eKk2GEcoxWLrHQHCecYNs6Up5LNwt/zwnySh6hn5KxqYwlu4cyen+rKg6v2V2 2cyXCeB/4BeGEfe1JTeX1aelj0+msbmkTZ2xQ6VM8W9ZGqZl8142hyV59wxKmsJH aWQiiT4o6IJSW8TBm2dOyQ3eFty21x3AG1cXeo78ohLoZdBUJp7Sp0qN2dssU4LD +ruseGoYWFjKRJTrZqhoPQ9mooifuIxROPxeQZ+eWXyaF0olU+SlC77BwgwRYp/J KVPx+lt3aAMxzi3sgZ1kttaL5MFi9dxWFFzdAZIf33jRxup4ErMmcvG+GLRUayp7 o0WkqXHOXZsJBB8TYC+bsJUgyJafvVrR+U/dynCAMCyrRi1N228eayiOHO9k8qcU d5X2pDBnOGoz/RtzKmibN9BrkmKk8/LDLAg+P4BrGUZQUcjngiU0l+NRfMmAy+3j A6Wo127JvODCKYeB45MSKzQt/4gDeKWG07fg+MhKBuaZwfhM1SXzgcLc9O4Zmsoy kYZdGHEFQKAOiibQ8YKNmbIGkcfe+tM5sUAS6OU7dHeU0thF53UlRJM4sk+0EHj0 7v1z4Y7NL3mO5wDC+G47iGa3MLLy4gWd2lydJr9Ah3JiuIUPhp0lAgCmcV5JL6Pb fvmRByXi5mA= =ZBtC -----END PGP SIGNATURE-----