Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2554 Advisory (ICSA-18-240-04) 29 August 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ABB eSOMS Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Unauthorised Access -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-14805 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-18-240-04 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-18-240-04) ABB eSOMS Original release date: August 28, 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 9.8 o ATTENTION: Exploitable remotely/low skill level to exploit o Vendor: ABB o Equipment: eSOMS o Vulnerability: Improper Authentication 2. RISK EVALUATION Successful exploitation of this vulnerability requires an attacker to discover a valid user account, which could be used to gain access to the application without authentication. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following version of ABB eSOMS, an electronic shift operations management system, is affected: o eSOMS Version 6.0.2 3.2 VULNERABILITY OVERVIEW 3.2.1 IMPROPER AUTHENTICATION CWE-287 Unauthorized access to the system can be achieved when LDAP is set to allow anonymous authentication, and specific key values within the eSOMS web.config file are present. Both conditions are required to exploit this vulnerability. CVE-2018-14805 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Chemical, Defense Industrial Base, Energy o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: Switzerland 3.4 RESEARCHER ABB reported this vulnerability to NCCIC. 4. MITIGATIONS ABB plans to release a new version of eSOMS on September 28, 2018 to address this issue. ABB recommends the following immediate actions: Users running eSOMS Version 6.0.2 should ensure "Unauthenticated Authentication" (anonymous bind) is disabled in the LDAP configuration settings. In the eSOMS web.config file, ensure only the following key values are populated: "LDAP_Path," "LDAP_User_Search," and "LDAP_SSL_Enabled." The remaining LDAP related key values are reserved for non-standard LDAP server configurations and are not normally required. Users should contact ABB global customer care (GCC) for further guidance if they experience issues with implementing LDAP authentication using only the previously mentioned key values. Users can find more information in ABB's security advisory ABBVU-PGGA-2018030 at the following location: https://search.abb.com/library/Download.aspx?DocumentID=9AKK107046A5821 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. No known public exploits specifically target this vulnerability. Contact Information For any questions related to this report, please contact the NCCIC at: Email: NCCICCUSTOMERSERVICE@hq.dhs.gov Toll Free: 1-888-282-0870 For industrial control systems cybersecurity information: http://ics-cert.us-cert.gov or incident reporting: https://ics-cert.us-cert.gov/Report-Incident? The NCCIC 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 iQIVAwUBW4Y62GaOgq3Tt24GAQgjxRAApZ5F3HSUNd06oKLBewN7Y+E5l4ypbI9I jnMu9TYeQklVtAr0oepijbLUkELpSiN2nj32BpU4/9s/vxxdKzzP2wpAgrEMnkvb gIreHfPl34s5YUi+oMbBQJESU+WaPEFATTWE7W01qCjbQETpbxkTia1PfLp6XZFD K5HWkb4PTQz36iJnDUaZwqkcQjygJ3YA9ECDNnH+/C8mZAOtRPKLKdgGO93H2ian 1ni/Z5L9IhRmuMKsBtx1JeTZbUM4sB5FTq0UNVwvSzpAUkOFJ1+I2KFBIoFZlRa6 jSYuG69LBPw4uhDv4wH4GhpW34z1hL0PWSYDMaiaGbVcJUJy4gmY3BRjYQi4R1de cDgIvHdjqY0mXb8tteiAUT+gowX7wSivtKTN9/fSHQX9UIdSjx+c4AXAYbR6bAn1 yU9Kop+KujU9PDfBINAgEDR3iMf5pCrjwJZekdQ16nb2A+7PJJeTbcV1zIGeoku7 5ppnM2l91GXjDiY/Oe9leFf2uC+o07vXiUhCBNSYac/y8kV4cJwRnO2chKkZq9d6 s+/u1tYu60cZKkznTZEHizZdFBkZN4kYTAdd7IPSZU1yoHlaqvAgn4P/BMjLpaiF 66rAY6TriSJjx09EQoVDc2MHX6WfSwD8HF0VT1b6Z/4x+F1gYGuU79OhONgK3yly v/r6IoTtbB8= =WGyc -----END PGP SIGNATURE-----