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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2451 Schneider Electric PowerLogic PM8ECC Hard-coded Password Vulnerability 20 October 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Schneider Electric PowerLogic PM8ECC Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-5818 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-16-292-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-16-292-01) Schneider Electric PowerLogic PM8ECC Hard-coded Password Vulnerability Original release date: October 18, 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 He Congwen has identified a hard-coded password vulnerability in Schneider Electric's PowerLogic PM8ECC device. Schneider Electric has produced a patch to mitigate this vulnerability. This vulnerability could be exploited remotely. AFFECTED PRODUCTS The following PowerLogic PM8ECC versions are affected: PM8ECC Version 2.651 and older. IMPACT An attacker who exploits this vulnerability would have access to configuration data on the device. Impact to individual organizations depends on many factors that are unique to each organization. NCCIC/ICS-CERT recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation. BACKGROUND Schneider Electric's corporate headquarters is located in Paris, France, and it maintains offices in more than 100 countries worldwide. The affected product, PowerLogic PM8ECC, is a communications add-on module for the Series 800 PowerMeter. According to Schneider Electric, PowerLogic PM8ECC is deployed in the Commercial Facilities sector. Schneider Electric estimates that this product is used worldwide. VULNERABILITY CHARACTERIZATION VULNERABILITY OVERVIEW HARD-CODED PASSWORD[a] Undocumented hard-coded credentials allow access to the device. CVE-2016-5818[b] has been assigned to this vulnerability. A CVSS v3 base score of 9.1 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).[c] VULNERABILITY DETAILS EXPLOITABILITY This vulnerability could be exploited remotely. EXISTENCE OF EXPLOIT No known public exploits specifically target this vulnerability. DIFFICULTY An attacker with a low skill would be able to exploit this vulnerability. MITIGATION Schneider Electric recommends reducing the attack surface by turning off the web server. Turning off the web server will not allow the unintentional information to be disclosed. Schneider recommends users contact technical support at Schneider Electric for instructions to turn off the web server. A firmware upgrade to Version 2.651 may be required to enable this functionality. Schneider Electric has developed a patch that fixes this vulnerability. The patch can be downloaded here: http://www.schneider-electric.com/ww/en/download/document/PM8ECC%2Bv2_DOT_652 ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of this vulnerability. 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. 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 ICS-CERT 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. a. CWE-259: Use of Hard-Coded Password, https://cwe.mitre.org/data/definitions/259.html, web site last accessed October 18, 2016. b. NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-5818, 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 October 18, 2016. Contact Information For any questions related to this report, please contact ICS-CERT at: Email: ics-cert@hq.dhs.gov 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: 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 iQIVAwUBWAgjSox+lLeg9Ub1AQg0wg//bksdI+Xmt8eQ/nOOF1Pj66jbMqaxuvvi nuZHSPLCAd/Vim07lv4ij/nwGSQxB8UZ+g2++P6w2RMi5ip0rRkWZbF4HoyXaKIx 8ZjAQkhDmRHO94u6z1BvRC6Xppx/OxYgicobu9PUNAgVzNA8pEW74M0P3oTY/wbL TVBmmmMmdWOeZqTyWtKHaV9vy30P6W9el0B8KPCKSypc0CCnL5p+QtWvMypu+6ZB s44htA0kCOw7HSCRAIWkaX8JzCUx2KiMKXspQ7mWluj2EbF+Tshamoo+jtY97teQ +nalNvsg/QTdwdepCiDCfWVhvgEGCsmcTlZgi5SBudCEoqv4TgsS4hXA5fd+BGHr C/AaUbr2FrXQrqr1TN/ohEzxyQSnkXldExs2vPhBd+m/8+CUjz2CaixC6a8cil8J wKr4w9pcwLaSUU2ijC+UbFo8DuFgg6UHHo8OhCpfagH1IGwzcb4Og3DrjeDq3mwL 5BhATXD+QLnQaFyWSAnGY1FaW0CNHTLeKO0BTYh/SrvWM16RHfBrYchMlXAGKgqh uvCyHNP2hHcVX09o+MRKUt7ZUMe1zPTJx1G3PJgUKPp1QnxmRO7/GobB7o6Dow7F vkd5YRzDcRCSrdv3irx0/f0PpjUyAPuyZFKjUVU8DrXiIQyZk0/Pc3kOAbj9hH0Q Ja7HHuME1Mo= =G2M5 -----END PGP SIGNATURE-----