26 May 2015
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1386 Emerson AMS Device Manager SQL Injection Vulnerability 26 May 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Emerson AMS Device Manager Publisher: US-CERT Operating System: Windows Impact/Access: Administrator Compromise -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-1008 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-15-111-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-15-111-01) Emerson AMS Device Manager SQL Injection Vulnerability Original release date: May 21, 2015 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 This advisory was originally posted to the US-CERT secure Portal library on April 21, 2015, and is being released to the NCCIC/ICS-CERT web site. Emerson Process Management has identified an SQL injection vulnerability in its AMS Device Manager application. Emerson has produced a patch that mitigates this vulnerability. AFFECTED PRODUCTS Emerson reports that the vulnerability affects the following product: AMS Device Manager, V12.5 and earlier. IMPACT The vulnerability allows privilege escalation by an anonymous user that can result in access to administrative functions of the application. Impact to individual organizations depends on many factors that are unique to each organization. ICS-CERT recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation. BACKGROUND Emerson Process Management is a global manufacturing and technology company offering multiple products and services in the industrial, commercial, and consumer markets through its network power, process management, industrial automation, climate technologies, and tools and storage businesses. Emerson AMS Device Manager is a software package used to monitor and manage the status of field devices. Emerson reports the software is used worldwide primarily in the oil and gas and chemical industries. VULNERABILITY CHARACTERIZATION VULNERABILITY OVERVIEW SQL INJECTION [a] To be able to exploit the SQL injection vulnerability, an attacker must supply malformed input to the AMS Device Manager software. Successful attack results in administrative access to the application and its data files but not to the underlying computer system. CVE-2015-1008 [b] has been assigned to this vulnerability. Emerson has calculated a CVSS v2 base score of 4.3; the CVSS vector string is (AV:L/AC:L/Au:S/C:P/I:P/A:P). [c] VULNERABILITY DETAILS EXPLOITABILITY This vulnerability is not exploitable remotely and cannot be exploited without user interaction. EXISTENCE OF EXPLOIT No known public exploits specifically target this vulnerability. DIFFICULTY An attacker with medium skill would be able to exploit this vulnerability. MITIGATION Emerson recommends that systems using the AMS Device Manager application take the following steps soon to eliminate exposure to this vulnerability. AMS Device Manager application v12.5 Apply the patch according to the instructions in Knowledge Base Article NK-1400-0504 (http://www3.emersonprocess.com/Systems/Support/Home/index.aspx, login required), upgrade to v13, or apply the workaround below. Versions prior to AMS Device Manager v12.5 The AMS Device Manager software can be configured to add another user (e.g., ADMIN1) with full administrative privileges and make the default administrative user have read-only privileges. Please see DeltaV PSIRT advisory notification DSN15003-2 for more details on this issue at the following location (may require membership account): http://community.emerson.com/process/emerson-exchange/operateandmanage/deltav/deltav_security/b/securitynotificationblog/archive/2015/04/16/dsn15003-2-ams-device-management-sql-injection-vulnerability ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should: Limit user privileges on machines running ICS software. 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 at http://ics-cert.us-cert.gov/content/recommended-practices. 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-12-146-01BTargeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site (www.ics-cert.org). 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-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), http://cwe.mitre.org/data/definitions/89.html, web site last accessed April 21, 2015. b. NVD, http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1008, 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, http://nvd.nist.gov/cvss.cfm?version=2&vector=AV:L/AC:L/Au:S/C:P/I:P/A:P , web site last accessed April 21, 2015. Contact Information For any questions related to this report, please contact ICS-CERT at: Email: firstname.lastname@example.org 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 email@example.com 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: firstname.lastname@example.org 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). 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