Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.1054 C3-ilex EOscada Multiple vulnerabilities 5 November 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: C3-ilex EOScada Publisher: US-CERT Operating System: Windows Impact/Access: Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2012-1813 CVE-2012-1812 CVE-2012-1811 CVE-2012-1810 Original Bulletin: http://www.us-cert.gov/control_systems/pdf/ICSA-12-271-01.pdf - --------------------------BEGIN INCLUDED TEXT-------------------- ICS-CERT ADVISORY ICSA-12-271-01—C3-ILEX EOSCADA MULTIPLE VULNERABILITIES November 01, 2012 OVERVIEW This Advisory is a follow-up release to the original Advisory which was posted to the US-CERT secure Portal library October 08, 2012. Dale Peterson of Digital Bond has identified multiple vulnerabilities in the C3-ilex’s EOScada application that can result in data leakage and a denial-of- service (DoS) condition. C3-ilex’s has produced a patch that resolves these vulnerabilities. AFFECTED PRODUCTS C3-ilex reports that the vulnerabilities affect all EOScada versions prior to 11.0.19.2. IMPACT Successful exploitation of these vulnerabilities may cause a DoS or data leakage. Impact to individual organizations depends on many factors that are unique to each organization. ICS-CERT recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation. BACKGROUND C3-ilex’s EOScada is a real-time Windows-based Energy Management System for electrical, water, sewage, and gas applications. The EOScada platform features a distributed processing, networked configuration using PCs running Microsoft Windows. The EOScada product line includes PC-based Master Stations as well as remote terminal units (RTUs) that perform communication, data concentration, and connections to a variety of intelligent electronic devices (IEDs). EOScada is used primarily in the electrical sector with some usage in the water and oil and natural gas sectors. VULNERABILITY CHARACTERIZATION VULNERABILITY OVERVIEW IMPROPER ACCESS CONTROL The EOS Core Scada.exe does not restrict access that causes a DoS condition when attached to Port 5050/TCP or Port 24004/TCP, and any random data are sent to either port. The application will crash and restart and will be unavailable to legitimate users during that time. CVE-2012-1810 has been assigned to this vulnerability. A CVSS V2 base score of 5.0 has also been assigned; the CVSS vector string is (AV:N/AC:L/Au:N/C:N/I:N/A:P). RESOURCE MANAGEMENT ERRORS The EOSDataServer.exe attached to Port 24006/TCP is susceptible to a Resource Management Error when a large amount of random data is sent to the port. CVE-2012-1811 has been assigned to this vulnerability. A CVSS V2 base score of 7.8 has also been assigned; the CVSS vector string is (AV:N/AC:L/Au:N/C:N/I:N/A:C). DATA LEAKAGE The eosfailoverservice.exe returns data in clear text when a connection is made to Port TCP/12000. CVE-2012-1812 has been assigned to this vulnerability. A CVSS V2 base score of 5.0 has also been assigned; the CVSS vector string is (AV:N/AC:L/Au:N/C:N/I:P/A:N). RESOURCE MANAGEMENT ERRORS The eosfailoverservice.exe attached to Port 12000/TCP is susceptible to a Resource Management Error when a large amount of random data is sent to the port. CVE-2012-1813 has been assigned to this vulnerability. A CVSS V2 base score of 7.8 has also been assigned; the CVSS vector string is (AV:N/AC:L/Au:N/C:N/I:N/A:C). VULNERABILITY DETAILS EXPLOITABILITY These vulnerabilities are remotely exploitable. 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 C3-ilex recommends customers install the EOScada patch. Customers with a service agreement should contact C3-ilex’s Helpdesk at helpdesk@c3ilex.com or by calling the Help Desk at (510) 659-8300 x 107 for instructions on how to obtain the release. Customers without a service agreement should contact their C3-ilex Sales Manager for assistance in purchasing this or a later version release. ICS-CERT encourages asset owners to take additional defensive measures to protect against this and other cybersecurity risks. - Minimize network exposure for all control system devices. Critical devices should not directly face the Internet. - Locate control system networks and remote devices behind firewalls, specifically addressing traffic to the ports listed above, and isolate them from the business network. - When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing that VPN is only as secure as the connected devices. ICS-CERT also provides a section for control systems security recommended practices on the US-CERT Web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.m ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to taking defensive measures. 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. ICS-CERT CONTACT For any questions related to this report, please contact ICS-CERT at: Email: ics-cert@dhs.gov Toll Free: 1-877-776-7585 For industrial control systems security information and incident reporting: www.ics-cert.org ICS-CERT continuously strives to improve its products and services. You can help by answering a short series of questions about this product at the following URL: https://forms.us- cert.gov/ncsd-feedback/. DOCUMENT FAQ What is an ICS-CERT Advisory? An ICS-CERT Advisory is intended to provide awareness or solicit feedback from critical infrastructure owners and operators concerning ongoing cyber events or activity with the potential to impact critical infrastructure computing networks. When is vulnerability attribution provided to researchers? Attribution for vulnerability discovery is always provided to the vulnerability reporter unless the reporter notifies ICS-CERT that they wish to remain anonymous. ICS-CERT encourages researchers to coordinate vulnerability details before public release. The public release of vulnerability details prior to the development of proper mitigations may put industrial control systems and the public at avoidable risk. - --------------------------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: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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 iQIVAwUBUJdUM+4yVqjM2NGpAQJumRAAnPk1X+jGPTzJqBaVQUV8aXRXtvhF0K4W V2ddWgGB3UO5qWsTQqMB6Ic19NGwcpMBs8JtmK0T8Yt7Nowq/AmKKTDFchXQzgbN AV66ibPOjSR9fCBY9FNNQPfYyWkjma+qWGN2axZqcDzedhYz/A3tyQUzrw7+5yNF pvBFcgWUgdph46eEoblJ4/JyqmivviXsv7DSQKrGNSBwESDO3K5z4O/ypOHx0bqG +ULuUA2r1HqszjrC8zCY166vHda8Th9DRwNgCJhl2l6Tnde1T3BOmbXErflHmt/s I1d23HBkvBzjHfMTf9KWnj+lC875ztB2e9Nl+azRrbcbPFjX7RBU6gyvEoKmymX4 zzCDPLDdGEBlziFaEL5YzoQp5OezE0bTE5iqLT6vacRljMmbF2t6S+yhtXerOV9s BTUbX+V7TYPKBnapbn+oy6J6u8NNziQCfgPJXgGFXM20yryME6lBoO7owTsfYVQy 4xV/SxC+KV0rziM+w3OYN5m/H87rwSxmTQdpKdD+UKjFMX/IfUGaRcRG8N4CsuyI z7W+FVyw9sPdIdDCNgUS6qoy7HqcuEKhil2hEsBxcJ9kC7MH0ubt8Ok+CdP4Ql5Z 5ug83cCe57P/A0kR/Ts5Ywud0iUuiIByoS12DWoimDYdL3GPu9mVVlICt02yyHGt la9yybAENIo= =tNUc -----END PGP SIGNATURE-----