05 December 2016
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2854 Smiths-Medical CADD-Solis Medication Safety Software Vulnerabilities 5 December 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Smiths-Medical CADD-Solis Medication Safety Software Publisher: ICS-CERT Operating System: Windows Impact/Access: Increased Privileges -- Existing Account Provide Misleading Information -- Remote with User Interaction Access Privileged Data -- Remote with User Interaction Resolution: Mitigation CVE Names: CVE-2016-8358 CVE-2016-8355 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSMA-16-306-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSMA-16-306-01) Smiths-Medical CADD-Solis Medication Safety Software Vulnerabilities Original release date: December 01, 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 This advisory was originally posted to the US-CERT secure Portal library on November 1, 2016, and is being released to the NCCIC/ICS-CERT web site. Smiths-Medical has reported two vulnerabilities in Smiths-Medical's CADD-Solis Medication Safety Software that were identified by Andrew Gothard of Newcastle Upon Tyne Hospitals NHS Foundations Trust. Smiths-Medical has produced new versions to mitigate these vulnerabilities. Smiths-Medical reports that an independent security expert has tested the new versions to validate that they resolve the identified vulnerabilities. These vulnerabilities could be exploited remotely. AFFECTED PRODUCTS The following CADD-Solis Medication Safety Software versions are affected: Smiths-Medical CADD-Solis Medication Safety Software, Version 1.0; Smiths-Medical CADD-Solis Medication Safety Software, Version 2.0; Smiths-Medical CADD-Solis Medication Safety Software, Version 3.0; and Smiths-Medical CADD-Solis Medication Safety Software, Version 3.1 IMPACT Successful exploitation of these vulnerabilities may allow an authenticated user to add users, delete users, and to modify permissions via the CADD-Solis Medication Safety Software. Drug libraries can also be modified in the CADD-Solis Medication Safety Software. However, to update the drug libraries on a pump, a laptop with the CADD-Solis Medication Safety Software would have to be physically plugged into one of two different types of pumps, the CADD-Prizm System and the CADD-Solis Ambulatory Infusion Pump. 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 and specific clinical usage. BACKGROUND Smiths-Medical is headquartered in Plymouth, Minnesota, and is a subsidiary of Smiths Group plc, which is a UK-based company. The affected product, the CADD-Solis Medication Safety Software, is an application that is used to set dosage limits for infusion pumps. According to Smiths-Medical, the CADD-Solis Medication Safety Software can interface with the CADD-Prizm System and the CADD-Solis Ambulatory Infusion Pump, which are deployed across the Healthcare and Public Health sector. Smiths-Medical estimates that this product is sold worldwide. VULNERABILITY CHARACTERIZATION VULNERABILITY OVERVIEW INCORRECT PERMISSION ASSIGNMENT FOR CRITICAL RESOURCE[a] CADD-Solis Medication Safety Software grants an authenticated user elevated privileges on the SQL database, which would allow an authenticated user to modify drug libraries, add and delete users, and change user permissions. According to Smiths-Medical, physical access to the pump is required to install drug library updates. CVE-2016-8355[b] has been assigned to this vulnerability. A CVSS v3 base score of 9.9 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).[c] MAN-IN-THE-MIDDLE[d] The affected software does not verify the identities at communication endpoints, which may allow a remote attacker to gain access to the communication channel between endpoints. CVE-2016-8358[e] has been assigned to this vulnerability. A CVSS v3 base score of 8.5 has been assigned; the CVSS vector string is (AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H).[f] VULNERABILITY DETAILS EXPLOITABILITY These vulnerabilities could be exploited remotely. EXISTENCE OF EXPLOIT No known public exploits specifically target these vulnerabilities. DIFFICULTY An attacker with low skill would be able to exploit these vulnerabilities. MITIGATION Smiths-Medical has released new versions of the CADD-Solis Medication Safety Software, which mitigates the identified vulnerabilities. The new versions of Smiths-Medical's CADD-Solis Medication Safety Software are Version 3.2, which is distributed within the continental US, and Version 4.1, which is released outside the continental US. Smiths-Medical recommends that CADD-Solis Medication Safety Software users install the applicable new version. In addition, Smiths-Medical also recommends that users take the following additional security measures: Apply strict password standards across systems to include, requiring the use of upper case, lower case, special characters, and a minimum password length of 8 characters. Establish and effectively manage an Active directory. Create an SQL Express database account with managed permissions for use with the CADD-Solis Medication Safety Software. Establish and assign managed Services Accounts for all servers and medical infusion pumps. Use Virtual Local Area Network (VLAN) tagging. Implement server hardening procedures for both SQL and Windows servers. For additional information about the identified vulnerabilities or to obtain the new version of the CADD-Solis Medication Safety Software, contact Smiths-Medical Technical Support at: Telephone: +1 (800) 258 5361 or +01 614 210 7300; Email: firstname.lastname@example.org (link sends e-mail). ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should: Minimize network exposure for all medical devices and/or systems, and ensure that they are not accessible from the Internet. Locate all medical devices 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 also provides a section for security recommended practices on the ICS-CERT web page at http://ics-cert.us-cert.gov/content/recommended-practices. ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. 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 (http://ics-cert.us-cert.gov/). 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-732: Incorrect Permission Assignment for Critical Resource, https://cwe.mitre.org/data/definitions/732.html, web site last accessed December 01, 2016. b. NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-8355, 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:L/UI:N/S..., web site last accessed December 01, 2016. d. CWE-300: Channel Accessible by Non-Endpoint ("Man-in-the-Middle"), https://cwe.mitre.org/data/definitions/300.html, web site last accessed December 01, 2016. e. NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-8358, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory. f. CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S..., web site last accessed December 01, 2016. Contact Information For any questions related to this report, please contact ICS-CERT at: Email: email@example.com (link sends e-mail) 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 - --------------------------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 firstname.lastname@example.org 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. 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