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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3067 Advisory (ICSA-18-282-01) GE iFix 10 October 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: GE iFIX Publisher: ICS-CERT Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-17925 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-18-282-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-18-282-01) GE iFix Original release date: October 09, 2018 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/. 1. EXECUTIVE SUMMARY o CVSS v3 5.3 o ATTENTION: Exploitable remotely/low skill level to exploit o Vendor: GE o Equipment: Gigasoft component of iFix o Vulnerability: Unsafe ActiveX Control Marked Safe For Scripting 2. RISK EVALUATION Successful exploitation of this vulnerability could cause a buffer overflow condition. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS GE reports this vulnerability in a Gigasoft component affects the following iFix HMI products: o iFIX 2.0 - 5.0 o iFIX 5.1, o iFIX 5.5, and o iFIX 5.8 Gigasoft components older than Version 8.0 are likely to be used in other products from other vendors also. 3.2 VULNERABILITY OVERVIEW 3.2.1 UNSAFE ACTIVEX CONTROL MARKED SAFE FOR SCRIPTING CWE-623 Multiple instances of this vulnerability have been identified in the third-party ActiveX object provided to GE iFIX by Gigasoft. Only the independent use of the Gigasoft charting package outside the iFIX product may expose users to the reported vulnerability. The reported method shown to impact Internet Explorer is not exposed in the iFIX product, nor is the core functionality of the iFIX product known to be impacted. CVE-2018-17925 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U /C:L/I:L/A:L). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Multiple sectors o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: United States 3.4 RESEARCHER LiMingzheng of 360 aegis security team reported this vulnerability to NCCIC. 4. MITIGATIONS GE released iFIX 5.9 in June 2017 to address this issue by incorporating Gigasoft Version 8.0 GE recommends users only use ActiveX from trusted sources. To obtain the latest versions of the iFIX product, please contact the local GE Digital representative. Contact information is available at: https://digitalsupport.ge.com/communities/CC_Contact For more information on this vulnerability and associated software updates, please see GE Security Communication GED SecComm 18-01 dated March 27, 2018 on the GE website: https://digitalsupport.ge.com/communities/en_US/Article/KB0024470 NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should: o Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet. o Locate control system networks and remote devices behind firewalls, and isolate them from the business network. o 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. NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. NCCIC 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 on the ICS-CERT website in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents. - --------------------------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 iQIVAwUBW72OfGaOgq3Tt24GAQhRiRAAoVeve05kME7f5ytnkH3E1c0mYBWYJsON eyrcLNdAayDkPLPm9+jqMMlT+8AUHYFILUR42DCDRDiFRy4mhI7sU1rmovxkwb/r 2yZMLm6Mzb+gISsX1MV0FdsZ7H6yNvKyxYCqaVR4ZhrF+7uqOEXCwLFl+JxEmA3R 13xnPSgudTSPxZqcZcryDERqTXJr1y2J+XFZyXQUn9iBRAqB7BaAkbR+heJnsJZk +E0pt0xptri7BfAZVm3iFJ4rdFkJRFfCqohbTro6fYjIou3smZF/NC8mjspnoL2g IEKdMS/PttvIt14dBO18WDv9B8IydLWHZLeIzFwJOJq91Aum3CMAwrSlx6FCCcqr P8dTJi1HnvMAFkYNofusNp/nVXmZf0s3kHrKyEGsnGK/7fsGBFTNkecEoXV5Osl7 IdqcR/SQKqIDSAcQql/b+jGz5a70qr3UPekR+MKK+bmkT8O0rh5BtD2ofvWuPkP5 fW+zYdqe5Jst2l+mikKtyO8t37qTPmlZCpi7aDoFHzxN0gM5JTUOBVmJU+dtVO+P XQCGwA0IUCuKXCaBVlwJLesxV8fk47A09M8KQDbA2aXaTK6TkURcj0rnTDLIfCp6 aeOwYlAwk8DQYl8G+qBKeJy2YCkGe6KP/XJfNnYUMS40nakypxZ4gpE+Fs5w3RkS zauA2Hy+aWs= =7ynZ -----END PGP SIGNATURE-----