30 September 2016
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2297 American Auto-Matrix Front-End Solutions Vulnerabilities 30 September 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: American Auto-Matrix Building Automation Front-End Solutions Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-2308 CVE-2016-2307 Original Bulletin: http://ics-cert.us-cert.gov/advisories/ICSA-16-273-01-0 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-16-273-01) American Auto-Matrix Front-End Solutions Vulnerabilities Original release date: September 29, 2016 Legal Notice All information products included in http://ics-cert.us-cert.gov 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 http://www.us-cert.gov/tlp/. OVERVIEW Independent researcher Maxim Rupp has identified a local file inclusion and a plain text storage of password vulnerabilities in American Auto-Matrixs Building Automation Front-End Solutions application. The Aspect-Matrix hardware platform was made end of life in 2015 and will no longer receive further updates. American Auto-Matrix has produced an update that fixes these vulnerabilities in the Aspect-Nexus platform. These vulnerabilities could be exploited remotely. AFFECTED PRODUCTS The following Building Automation Front-End Solutions versions are affected: - - Aspect-Nexus Building Automation Front-End Solutions application versions prior to 3.0.0 - - Aspect-Matrix Building Automation Front-End Solutions application all versions. IMPACT User logins and passwords presented in plain text provide an attacker authenticated credentials to all aspects of the system. Impact to individual organizations depends on many factors that are unique to each organization. NCCIC/ICS-CERT recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation. BACKGROUND American Auto-Matrix is a US-based company. The affected product, Building Automation Front-End Solutions application, is a building automation integration device. According to American Auto-Matrix, Building Automation FrontEnd Solutions application is deployed across several sectors including Commercial Facilities, Critical Manufacturing, Energy, Water and Wastewater systems, and others. American Auto-Matrix estimates that this product is used primarily in the United States. VULNERABILITY CHARACTERIZATION VULNERABILITY OVERVIEW LOCAL FILE INCLUSION [a] Without authorization, the attacker can read files on the host, including the configuration file. CVE-2016-2307 [b] 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:H/I:N/A:N). [c] PLAINTEXT STORAGE OF A PASSWORD [d] In a file that is accessible without authentication, passwords are presented in plain text. CVE-2016-2308 [e] has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L). [f] VULNERABILITY DETAILS EXPLOITABILITY These vulnerabilities could be exploited remotely. EXISTENCE OF EXPLOIT No known public exploits specifically target these vulnerabilities. DIFFICULTY An attacker with a low skill would be able to exploit these vulnerabilities. MITIGATION American Auto-Matrix recommends the following steps: Download the zip file located at Dealer Toolbox (http://www.aamatrix.com/aspect-new-features (link is external)) under Product Support>Software Updates. Then: - - Unzip the attached file - - Install the .aam file through the WebUI under [System Administration > System Updates] Users will then need to reboot the unit in order complete the upgrade process. ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should: - - Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet. - - Locate control system networks and remote devices behind firewalls, and isolate them from the business network. - - 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. ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. ICS-CERT also provides a section for control systems security recommended practices on the ICS-CERT web page at: http://ics-cert.us-cert.gov/content/recommended-practices. 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 in the ICSCERT Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site (http://ics-cert.us-cert.gov/). Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to ICS-CERT for tracking and correlation against other incidents. a. CWE-98: Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion'), http://cwe.mitre.org/data/definitions/98.html, web site last accessed September 29, 2016. b. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-2307, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory. c. CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S..., web site last accessed September 29, 2016. d. CWE-256: Plaintext Storage of a Password, http://cwe.mitre.org/data/definitions/256.html, web site last accessed September 29, 2016. e. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-2308, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory. f. CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S..., web site last accessed September 29, 2016. Contact Information For any questions related to this report, please contact ICS-CERT at: Email: firstname.lastname@example.org (link sends e-mail) Toll Free: 1-877-776-7585 International Callers: (208) 526-0900 For industrial control systems security information and incident reporting: http://ics-cert.us-cert.gov ICS-CERT 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 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: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBV+33fYx+lLeg9Ub1AQgbkg/+Ll7RQT7/uxsiQ3tDtft+WC6PrJgED86V C/5yOvHzseofSDnX4AuO2/X4YGdvu0RPr6ahFpc2RG2Mn/26G6NCpyIkHc1T9eRH kmaRc/1UPNKEXy92bLIrHnDhdkJRhjLvp7A6b3XZHrLrixtPPHBqSl3uxc7ELmE5 6U93TCh/uTt7lVA9qrrCV98IJnaENB4qpK3lfFEReAc0R8H3aDS4xoDxbvKN3Epw xOPG1iEMj2GyrNnMWdfmfshWdc1TSKTzxkQTXj1dH2bnDe4e6DyiRMnPTENR5E0L saUhn/df0F6OE1icQrVSUgdaFBtAJvVE7JrYkz59NSs4uBTQJx7Zgjlff3ZmvYxv JQiqXfy4gzwhUolIXYudAp2+LHso7tbZIHIHrH6x+d+FQYHuexv2QFm6kfFJeTAH jf2EgLiSZW7xMpEaKvbGeg2CRXK0Pvg3zWccF9ig3k31OkiomnQ2SHclsgbQASrr gMUBRTtepgsM+BNREmOmuRgjxPUERTB4cXm/7YNsilpgnLQFMVOzTWSvCmaSzRUK DCtfr8H9m5AO1mueFFVs2supA8O+TZUqs+ph+MexUBd/7JLqdxXBiHAxGvqF+42i F06Joy/R5ykSkxeMz7mvBR60jaRQXkY6lhx3Dk1W4StbwzFzZd8THVNGkZuTMjWq Rl3BzSua0OQ= =TZ5A -----END PGP SIGNATURE-----