27 January 2023
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.0509 Advisory (icsa-23-026-04) Sierra Wireless AirLink Router with ALEOS Software 27 January 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Sierra Wireless AirLink Router with ALEOS Software Publisher: ICS-CERT Operating System: Network Appliance Resolution: Patch/Upgrade CVE Names: CVE-2022-46650 CVE-2022-46649 Original Bulletin: https://us-cert.cisa.gov/ics/advisories/icsa-23-026-04 Comment: CVSS (Max): 8.0 CVE-2022-46649 (CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVSS Source: ICS-CERT Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- ICS Advisory (ICSA-23-026-04) Sierra Wireless AirLink Router with ALEOS Software 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 8.0 o ATTENTION: Exploitable remotely/low attack complexity o Vendor: Sierra Wireless o Equipment: AirLink Router with ALEOS Software o Vulnerabilities: Improper Neutralization of Argument Delimiters in a Command, Exposure of Sensitive Information to an Unauthorized Actor 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow a loss of sensitive information and could allow remote code execution. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Sierra Wireless reports the following versions of AirLink router with ALEOS software are affected: o Airlink Router (ES450, GX450) running ALEOS software: Versions 4.9.7 and prior o Airlink Router (MP70, RV50, RV50x, RV55, LX 40, LX60) running ALEOS software: Versions prior to 4.16.0 3.2 VULNERABILITY OVERVIEW 3.2.1 IMPROPER NEUTRALIZATION OF ARGUMENT DELIMITERS IN A COMMAND ('ARGUMENT INJECTION') CWE-88 AirLink router versions with ALEOS software are vulnerable when users with valid ACEManager credentials and access to the ACEManager interface could manipulate the IP logging operation to execute arbitrary shell commands on the device. CVE-2022-46649 has been assigned to this vulnerability. A CVSS v3 base score of 8.0 has been calculated; the CVSS vector string is ( AV:A/AC:L/PR:L/UI:N/S:U/ C:H/I:H/A:H ). 3.2.2 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200 AirLink router versions with ALEOS software are vulnerable when users with valid ACEManager credentials and access to the ACEManager interface could reconfigure the device to expose the ACEManager credentials on the pre-login status page. CVE-2022-46650 has been assigned to this vulnerability. A CVSS v3 base score of 4.5 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:H/UI:R/S:U/ C:H/I:N/A:N ). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Multiple o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: Canada 3.4 RESEARCHER Roni Gavrilov and Eran Jacob from OTORIO reported these vulnerabilities to CISA. 4. MITIGATIONS Sierra Wireless recommends upgrading the following affected devices: o Upgrade MP70, RV50, RV50x, RV55, LX 40, LX60 to ALEOS version 4.16.0 or later o Upgrade ES450, GX450 to ALEOS version 4.9.8 (when available) or later Sierra Wireless recommends the following mitigations: o Always use strong, and ideally unique random credentials for devices. ALEOS devices ship with unique random credentials by default. o Disable access to ACEManager on the wide area network (WAN) and use the Sierra Wireless Airlink Management System (ALMS) or an alternative device management platform for remote management of ALEOS devices. o If the ACEManager must remain accessible via the WAN, restrict access using measures such as Private APN, VPN, or the ALEOS Trusted IP feature (restricts access to specific hosts). 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. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBY9NX8ckNZI30y1K9AQgHHhAAn1uqBMKtbdAOg9j9pCk3LZlMQzYCE+a+ YMl1IdheZxqplYcx/OOgUWKHocZMfNKcKk+StSCAmE6QiWDK8Z4ZgUUTjZ/VGY2P Ou3OicXEtmhEgO5vCbOAJdyJScv+735xATzfpvBKgP65FbX4WaCh9SR8Y+RNtBtn 4q6aQ0xnY48QalAf6BN/moz8Ja/LO6uqzoSbm2PqNxdxLNVh2jBBgHtFV+r73tZD 1VgpCtOz/jsW3IdWJEAT8VgbP+FsAL3JpWWKu+4bg44OK3yHiVT4mfeqcl5UcI0Q MoJ/M4dOgp4LmHst12TVWX2eQD6lx3G8RSB9OfRc7mv1lysiInVUivk2Pynl0W4b S5D0/QP0YkJgKgwiYhyGAflaa24B5lHuD15z2Xxik8UiqTt44531i8smKA1CZNoJ AxKlfHmAQYDk03owtIV5/O7CM04lPYA7qLswDpldPs8yLW4QQwqUhsYB3I2kk1M2 kPT7pClbww5AuyTfftSN6zVn+HhdDy8UGdbUtQbrBqmaksy9Uz/hMUvd1wrCo7gc YdUJJdCDdlRzbd21xvl+zLHh2PMSzJmAXU0Ra0Z/23SNxDhD6AnDcUmgE41a7C1O N58/HT1J/tbp9RgFZeVE80uFSDVIgIQNA7J8osKuuy1EPPO43alURk1eC2P7ZQXe 8/n7S8QEWyc= =TLqk -----END PGP SIGNATURE-----