Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2589 Advisory (ICSA-17-285-01) ProMinent MultiFLEX M10a Controller 13 October 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ProMinent MultiFLEX M10a Controller Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Increased Privileges -- Remote/Unauthenticated Access Privileged Data -- Existing Account Cross-site Request Forgery -- Remote with User Interaction Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-14013 CVE-2017-14011 CVE-2017-14009 CVE-2017-14007 CVE-2017-14005 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-17-285-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-17-285-01) ProMinent MultiFLEX M10a Controller Original release date: October 12, 2017 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/. CVSS v3 8.8 ATTENTION: Remotely exploitable/low skill level to exploit. Vendor: ProMinent Equipment: MultiFLEX M10a Controller Vulnerabilities: Client-Side Enforcement of Server-Side Security, Insufficient Session Expiration, Cross-Site Request Forgery, Information Exposure, and Unverified Password Change AFFECTED PRODUCTS The following versions of MultiFLEX Controller, a water treatment controller, are affected: All versions of MultiFLEX M10a Controller web interface. IMPACT Successful exploitation of these vulnerabilities could allow an attacker to bypass protection mechanisms, assume the identity of authenticated users, and change the device configuration. MITIGATION ProMinent has not provided mitigations for these vulnerabilities. NCCIC/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 a 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. 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. 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. No known public exploits specifically target these vulnerabilities. VULNERABILITY OVERVIEW CLIENT-SIDE ENFORCEMENT OF SERVER-SIDE SECURITY CWE-602 The log out function in the application removes the users session only on the client side. This may allow an attacker to bypass protection mechanisms, gain privileges, or assume the identity of an authenticated user. CVE-2017-14013 has been assigned to this vulnerability. A CVSS v3 base score of 5.6 has been assigned; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L). INSUFFICIENT SESSION EXPIRATION CWE-613 The users session is available for an extended period beyond the last activity, allowing an attacker to reuse an old session for authorization. CVE-2017-14007 has been assigned to this vulnerability. A CVSS v3 base score of 5.6 has been assigned; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L). CROSS-SITE REQUEST FORGERY (CSRF) CWE-352 The application does not sufficiently verify requests, making it susceptible to cross-site request forgery. This may allow an attacker to execute unauthorized code, resulting in changes to the configuration of the device. CVE-2017-14011 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). INFORMATION EXPOSURE CWE-200 When an authenticated user uses the Change Password feature on the application, the current password for the user is specified in plaintext. This may allow an attacker who has been authenticated to gain access to the password. CVE-2017-14009 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). UNVERIFIED PASSWORD CHANGE CWE-620 When setting a new password for a user, the application does not require the user to know the original password. An attacker who is authenticated could change a users password, enabling future access and possible configuration changes. CVE-2017-14005 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). RESEARCHER Maxim Rupp disclosed this vulnerability to ICS-CERT. BACKGROUND Critical Infrastructure Sector: Water and Wastewater Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: Ontario, California Contact Information For any questions related to this report, please contact ICS-CERT at: Email: ics-cert@hq.dhs.gov (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 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: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWeAppox+lLeg9Ub1AQgOTw/7BH16e8vGh0z+PRAw0PzsaF0wBtTfI9kN cOqbpMK+lGBkFg0r6lne/jkjgjARmexEolXoQLq0dtAXZpPLEK99MbXbnOPF22Ck NCmIicZPBCHKVW0M18oi5sunE8vuqAI+0OeYvD6E3DKcMiQSMuP3/Z9D4uw/ZpET OwIgU9w94TDYa3yPapI2i6PNJvTqmYP9qPFKX7d2xuJ8fQCaErLV5Ey92U1q1k2V XLaTgyKXwAifO3nL45/ID/KlLwN7mbycBwExhocmfqLFYkAZhPRiNzWXwWAaJl6I FIzLb2XXwcIaS6aWRCC8jWfYGr3e5p7w6b4M+Z852VYAT7AAZcgglRew6MJlIF2c IMoV1RoDSVc2GoH6aHjGbqiNFm6Sbj9CUo94b+2E3zMXBEwRc7IXcjhaKW3IABra WoOgMG8BIokWsr+CmO80r10npKvoArlTX6PnUqFmf1I+8oOqYifnsNGpFGL4LyVN GwncR+QwaFROqR75G+Lx+Inj9z+msGlaBs8+2gU3yXrnvUKHcl13KA9YKkFVevXM NrLOuEFb3B4dTDRUdpHbHHtvsT0VXqw4cA0v6vASydSDRsj2qiWheTuVM/y204Ax nsb4OUEBfZV7qG3VoWBgJzTbt9kcv+9vTwwLL36asq5Sk+eT6FX0H52cpDYUT46A 9dVtQJzIEEI= =t+lC -----END PGP SIGNATURE-----