Siemens SIMATIC, SIMOCODE, SINAMICS, SITOP, and TIM (Update I)

# ICS Advisory (ICSA-19-099-06) ## Siemens SIMATIC, SIMOCODE, SINAMICS, SITOP, and TIM (Update I) Original release date: August 11, 2020 [Print Document](javascript:window.print\(\);) [Tweet](https://twitter.com/share?url=https%3A%2F%2Fus- cert.cisa.gov%2Fics%2Fadvisories%2FICSA-19-099-06) [Like Me](https://www.facebook.com/sharer.php?u=https%3A%2F%2Fus- cert.cisa.gov%2Fics%2Fadvisories%2FICSA-19-099-06) [Share](http://www.addthis.com/bookmark.php?url=https%3A%2F%2Fus- cert.cisa.gov%2Fics%2Fadvisories%2FICSA-19-099-06) ### Legal Notice All information products included in [https://us-cert.gov/ics](/ics) 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 [https://www.us- cert.gov/tlp/](/tlp/). * * * ## 1\. EXECUTIVE SUMMARY * **CVSS v3 7.5** * **ATTENTION:** Exploitable remotely/low skill level to exploit * **Vendor:** Siemens * **Equipment:** SIMATIC, SIMOCODE, SINAMICS, SITOP, and TIM * **Vulnerability:** Out-of-bounds Read ## 2\. UPDATE INFORMATION This updated advisory is a follow-up to the updated advisory titled ICSA-19-099-06 Siemens SIMATIC, SIMOCODE, SINAMICS, SITOP, and TIM (Update H) that was published June 9, 2020, on the ICS webpage on us-cert.gov. ## 3\. RISK EVALUATION Successful exploitation of this vulnerability could result in a denial-of- service condition leading to a restart of the webserver. ## 4\. TECHNICAL DETAILS ### 4.1 AFFECTED PRODUCTS The following products and versions are affected: * SIMATIC CP 1616 and CP 1604: All versions * SIMATIC CP443-1 (incl. SIPLUS NET variants): All versions * SIMATIC CP443-1 Advanced (incl. SIPLUS NET variants): All versions * SIMATIC CP443-1 OPC UA (incl. SIPLUS NET variants): All versions * SIMATIC CP343-1 Advanced (incl. SIPLUS NET variants): All versions * SIMATIC ET 200 SP Open Controller CPU 1515SP PC (incl. SIPLUS variants): All versions prior to v2.1.6 * SIMATIC ET 200 SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants): All versions prior to v2.7 * SIMATIC HMI Comfort Outdoor Panels 7" & 15" (incl. SIPLUS variants): All versions prior to v15.1 Upd 4 * SIMATIC HMI Comfort Panels 4" - 22" (incl. SIPLUS variants): All versions prior to v15.1 Upd 4 * SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F (incl. SIPLUS variants): All versions prior to v 15.1 Upd 4 * SIMATIC IPC DiagMonitor: All versions * SIMATIC RF182C: All versions * SIMATIC RF185C: All versions prior to v1.10 * SIMATIC RF186C: All versions prior to v1.10 * SIMATIC RF188C: All versions prior to v1.10 * SIMATIC RF600 family: All versions prior to v3.2.1 * SIMATIC RF181-EIP: All versions * SIMATIC S7-1500 Software Controller: All versions prior to v2.7 * SIMATIC Teleservice Adapter IE Advanced: All versions * SIMATIC Teleservice Adapter IE Basic: All versions * SIMATIC Teleservice Adapter IE Standard: All versions * SIMATIC WinAC RTX (F) 2010: All versions prior to SP3 * SIMATIC S7-1500 CPU Family (incl. related ET200 CPUs and SIPLUS variants): All versions prior to v2.6.1 * SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants): All versions prior to v3.X.16 * SIMATIC S7-400 PN/DP v6 and below CPU family (incl. SIPLUS variants): All versions * SIMATIC S7-400 PN/DP v7 CPU family (incl. SIPLUS variants): All versions * SIMATIC S7-PLCSIM Advanced: All versions prior to v2.0 SP1 UPD1 * SIMATIC WinCC Runtime Advanced: All versions prior to v15.1 Upd 4 * SIMOCODE pro VPN (incl. SIPLUS variants): All versions prior to v2.1.3 **\--------- Begin Update I Part 1 of 2 ---------** * SIMOCODE pro V EIP (incl. SIPLUS variants): All versions prior to 1.1.3 * SIMATIC Teleservice Adapter IE Advanced: All versions * SIMATIC Teleservice Adapter IE Basic: All versions * SIMATIC Teleservice Adapter IE Standard: All versions **\--------- End Update I Part 1 of 2 ---------** * SINAMICS S120 v4.6 Control Unit (incl. SIPLUS variants): All versions prior to v5.2 * SINAMICS S120 v4.7 Control Unit (incl. SIPLUS variants): All versions * SINAMICS S120 v4.7 SP1 Control Unit (incl. SIPLUS variants): All versions prior to v5.2 * SINAMICS S120 v4.8 Control Unit (incl. SIPLUS variants): All versions prior to v4.8 HF6 * SINAMICS S120 v5.1 Control Unit (incl. SIPLUS variants): All versions * SINAMICS S120 v5.1 SP1 Control Unit (incl. SIPLUS variants): All versions prior to v5.1 SP1 HF4 * SINAMICS G130 v4.6 Control Unit: All versions prior to v5.2 * SINAMICS G130 v4.7 Control Unit: All versions prior to v5.2 * SINAMICS G130 v4.7 SP1 Control Unit: All versions prior to v5.2 * SINAMICS G130 v4.8 Control Unit: All versions prior to v4.8 HF6 * SINAMICS G130 v5.1 Control Unit: All versions * SINAMICS G130 v5.1 SP1 Control Unit: All versions prior to v5.1 SP1 HF4 * SINAMICS G150 v4.6 Control Unit: All versions prior to v5.2 * SINAMICS G150 v4.7 Control Unit: All versions * SINAMICS G150 v4.7 SP1 Control Unit: All versions prior to v5.2 * SINAMICS G150 v4.8 Control Unit: All versions prior to v4.8 HF6 * SINAMICS G150 v5.1 Control Unit: All versions * SINAMICS G150 v5.1 SP1 Control Unit: All versions prior to v5.1 SP1 HF4 * SINAMICS S150 v4.6 Control Unit: All versions prior to v5.2 * SINAMICS S150 v4.7 Control Unit: All versions * SINAMICS S150 v4.7 SP1 Control Unit: All versions prior to v5.2 * SINAMICS S150 v4.8 Control Unit: All versions prior to v4.8 HF6 * SINAMICS S150 v5.1 Control Unit: All versions * SINAMICS S150 v5.1 SP1 Control Unit: All versions prior to v5.1 SP1 HF4 * SINAMICS S210 v5.1 Control Unit: All versions * SINAMICS S210 v5.1 SP1 Control Unit: All versions * SITOP Manager: All versions prior to v1.1 * SITOP UPS1600 (incl. SIPLUS variants): All versions prior to v2.3 * RFID 181EIP: All versions * SITOP PSU8600: All versions prior to v1.5 * TIM 1531 IRC (incl. SIPLUS NET variants): All versions prior to v2 * SIMATIC IPC DiagMonitor: All versions prior to v5.1.3 ### 4.2 VULNERABILITY OVERVIEW ### 4.2.1 [OUT-OF-BOUNDS READ CWE-125](https://cwe.mitre.org/data/definitions/125.html) The webserver of the affected devices contains a vulnerability that may allow an attacker to cause a denial-of-service condition, which leads to a restart of the webserver. [CVE-2019-6568](http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6568) has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is ([AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H](https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)). ### 4.3 BACKGROUND * **CRITICAL INFRASTRUCTURE SECTORS:** Commercial Facilities, Critical Manufacturing, Energy, Food and Agriculture, Water and Wastewater Systems * **COUNTRIES/AREAS DEPLOYED:** Worldwide * **COMPANY HEADQUARTERS LOCATION:** Germany ### 4.4 RESEARCHER Siemens reported this vulnerability to CISA. Artem Zinenko of Kaspersky identified that SIPLUS is also affected. ## 5\. MITIGATIONS Siemens recommends upgrading to the following firmware updates for the products below: * SIMATIC ET 200 SP Open Controller CPU 1515SP PC (incl. SIPLUS variants): [Update to v2.1.6](https://support.industry.siemens.com/cs/ww/en/view/109759122) * SIMATIC ET 200 SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants): [Update to v2.7](https://support.industry.siemens.com/cs/ww/en/view/109759122) * SIMATIC HMI Comfort Outdoor Panels 7" & 15" (incl. SIPLUS variants): [Update to v15.1 Upd4](https://support.industry.siemens.com/cs/ww/en/view/109763891) * SIMATIC HMI Comfort Panels 4" - 22" (incl. SIPLUS variants): [Update to v15.1 Upd4](https://support.industry.siemens.com/cs/ww/en/view/109763891) * SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F (incl. SIPLUS variants): [Update to v15.1 Upd4](https://support.industry.siemens.com/cs/ww/en/view/109763891) * SIMATIC IPC DiagMonitor: [Update to v5.1.3](https://support.industry.siemens.com/cs/ww/en/view/109763202) * SIMATIC RF185C, RF186C, and RF188C: [Update to v1.1.0](https://support.industry.siemens.com/cs/ww/en/view/109768507) * SIMATIC RF600R: [Update to v3.2.1](https://support.industry.siemens.com/cs/ww/en/view/109768501) * SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants): [Update to v2.6.1](https://support.industry.siemens.com/cs/ww/en/view/109478459/) * SIMATIC S7-1500 Software Controller: [Update to v2.7](https://support.industry.siemens.com/cs/ww/en/view/109478528) * SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants): [Update to v3.X.16](https://support.industry.siemens.com/cs/ww/en/ps/13752/dl) * SIMATIC S7-PLCSIM Advanced: [Update to v2.0 SP1 Upd1](https://support.industry.siemens.com/cs/de/de/view/109764222) * SIMATIC WinAC RTX (F) 2010: [Update to SP3 and apply BIOS and MS Windows updates](https://support.industry.siemens.com/cs/ww/en/view/109765109) * SIMATIC WinCC Runtime Advanced: [Update to v15.1 Upd4](https://support.industry.siemens.com/cs/ww/en/view/109763891) * SIMOCODE pro VPN (incl. SIPLUS variants): [Update to v2.1.3](https://support.industry.siemens.com/cs/ww/en/view/109749989) **\--------- Begin Update I Part 2 of 2 ---------** * SIMOCODE pro V EIP (incl. SIPLUS variants): [Update to v1.1.3](https://support.industry.siemens.com/cs/ww/en/view/109756912) **\--------- End Update I Part 2 of 2 ---------** * SINAMICS G130 v5.1 Control Unit: [Update to v5.1 SP1 HF4 or later version, or to latest version ofv5.2](https://support.industry.siemens.com/cs/ww/en/view/109765015) * SINAMICS G130 v5.1 SP1 Control Unit: [Update to v5.1 SP1 HF4 or later version](https://support.industry.siemens.com/cs/ww/en/view/109765015) * SINAMICS G150 v5.1 Control Unit: [Update to v5.1 SP1 HF4 or later version, or to latest version ofv5.2](https://support.industry.siemens.com/cs/ww/en/view/109765015) * SINAMICS G150 v5.1 SP1Control Unit: [Update to v5.1 SP1 HF4 or later version](https://support.industry.siemens.com/cs/ww/en/view/109765015) * SINAMICS S120 v5.1 Control Unit (incl. SIPLUS variants): [Update to v5.1 SP1 HF4 or later version, or to latest version ofv5.2](https://support.industry.siemens.com/cs/ww/en/view/109758423) * SINAMICS S120 v5.1 SP1 Control Unit(incl. SIPLUS variants): [Update to v5.1 SP1 HF4 or later version](https://support.industry.siemens.com/cs/ww/en/view/109758423) * SINAMICS S150 v5.1 Control Unit: [Update to v5.1 SP1 HF4 or later version, or to latest version ofv5.2](https://support.industry.siemens.com/cs/ww/en/view/109765015) * SINAMICS S150 v5.1 SP1 Control Unit: [Update to v5.1 SP1 HF4 or later version](https://support.industry.siemens.com/cs/ww/en/view/109765015) * SINAMICS G130 v4.6, v4.7, and v4.7 SP1: [Update to v5.2 (latest version)](https://support.industry.siemens.com/cs/ww/en/view/109764679/) * SINAMICS G130 v4.8: [Update to v4.8 HF6](https://support.industry.siemens.com/cs/ww/en/view/109742040) * SINAMICS G150 v4.6 and v4.7 SP1: [Update to v5.2 (latest version)](https://support.industry.siemens.com/cs/ww/en/view/109764679/) * SINAMICS G150 v4.8: [Update to v4.8 HF6](https://support.industry.siemens.com/cs/ww/en/view/109742040) * SINAMICS S120 v4.6 and v4.7 SP1 (incl. SIPLUS variants): [Update to v5.2 (latest version)](https://support.industry.siemens.com/cs/ww/en/view/109764679/) * SINAMICS S120 v4.8 (incl. SIPLUS variants): [Update to v4.8 HF6](https://support.industry.siemens.com/cs/ww/en/view/109742040) * SINAMICS S150 v4.6 and v4.7 SP1: [Update to v5.2 (latest version)](https://support.industry.siemens.com/cs/ww/en/view/109764679/) * SINAMICS S150 v4.8: [Update to v4.8 HF6](https://support.industry.siemens.com/cs/ww/en/view/109742040) * SITOP Manager: [Update to v1.1](https://support.industry.siemens.com/cs/ww/en/view/109760607) * SITOP PSU8600: [Update to v1.5 ](https://support.industry.siemens.com/cs/ww/en/view/102295547) * SITOP UPS1600 (incl. SIPLUS variants): [Update to v2.3](https://support.industry.siemens.com/cs/ww/en/view/79207181) * TIM 1531 IRC (incl. SIPLUS NET variants): [Update to v2.1](https://support.industry.siemens.com/cs/ww/en/view/109774204) For all other affected products, Siemens has identified the following specific workarounds and mitigations users can apply to reduce the risk: * Apply appropriate strategies for mitigation as described in the general security recommendation section. * Restrict network access to the integrated webserver. * Deactivate the webserver if not required and if deactivation is supported by the product. * For SINAMICS S, G130, G150 devices: perform upgrade to a new fixed version, for example v5.2. As a general security measure, Siemens strongly recommends users protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends users configure the environment according to [Siemens' operational guidelines for Industrial Security](https://cert-portal.siemens.com/operational-guidelines-industrial- security.pdf), and follow the recommendations in the product manuals. Additional information on industrial security by Siemens can be found at: <https://www.siemens.com/industrialsecurity> For more information on the vulnerability and more detailed mitigation instructions, please see [Siemens Security Advisory SSA-480230](http://www.siemens.com/cert/advisories) CISA recommends 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](https://www.us-cert.gov/ics/alerts/ICS-ALERT-10-301-01). * 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. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for [control systems security recommended practices](https://www.us-cert.gov/ics/recommended-practices) on the ICS webpage on [us-cert.gov](https://www.us-cert.gov/ics). Several recommended practices are available for reading and download, including [Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies](https://www.us- cert.gov/sites/default/files/recommended_practices/NCCIC_ICS- CERT_Defense_in_Depth_2016_S508C.pdf). Additional mitigation guidance and recommended practices are publicly available on the [ICS webpage on us-cert.gov](https://www.us-cert.gov/ics) in the Technical Information Paper, [ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies](https://www.us-cert.gov/ics/tips/ICS- TIP-12-146-01B). Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents. No known public exploits specifically target this vulnerability.