-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 # SSA-955858: Multiple Vulnerabilities in LOGO! 8 BM Devices Publication Date: 2022-10-11 Last Update: 2024-10-08 Current Version: 1.3 CVSS v3.1 Base Score: 9.8 SUMMARY ======= LOGO! 8 BM (incl. SIPLUS variants) contains multiple web-related vulnerabilities. These could allow an attacker to execute code remotely, put the device into a denial of service state or retrieve parts of the memory. The vulnerabilities are related to the hardware of the product. Siemens has released new hardware versions with the LOGO! V8.4 BM and the SIPLUS LOGO! V8.4 BM product families for all affected devices in which several of those vulnerabilities are fixed. See the chapter "Additional Information" below for more details. For more information please also refer to the related product support article: https://support.industry.siemens.com/cs/ww/en/view/109826554/. AFFECTED PRODUCTS AND SOLUTION ============================== * LOGO! V8.3 BM: - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 12/24RCE (6ED1052-1MD08-0BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 12/24RCEo (6ED1052-2MD08-0BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 230RCE (6ED1052-1FB08-0BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 230RCEo (6ED1052-2FB08-0BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 24CE (6ED1052-1CC08-0BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 24CEo (6ED1052-2CC08-0BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 24RCE (6ED1052-1HB08-0BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 24RCEo (6ED1052-2HB08-0BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! V8.4 BM: - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 12/24RCE (6ED1052-1MD08-0BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 12/24RCEo (6ED1052-2MD08-0BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 230RCE (6ED1052-1FB08-0BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 230RCEo (6ED1052-2FB08-0BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 24CE (6ED1052-1CC08-0BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 24CEo (6ED1052-2CC08-0BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 24RCE (6ED1052-1HB08-0BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * LOGO! 24RCEo (6ED1052-2HB08-0BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! V8.3 BM: - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 12/24RCE (6AG1052-1MD08-7BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 12/24RCEo (6AG1052-2MD08-7BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 230RCE (6AG1052-1FB08-7BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 230RCEo (6AG1052-2FB08-7BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 24CE (6AG1052-1CC08-7BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 24CEo (6AG1052-2CC08-7BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 24RCE (6AG1052-1HB08-7BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 24RCEo (6AG1052-2HB08-7BA1): - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! V8.4 BM: - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 12/24RCE (6AG1052-1MD08-7BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 12/24RCEo (6AG1052-2MD08-7BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 230RCE (6AG1052-1FB08-7BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 230RCEo (6AG1052-2FB08-7BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 24CE (6AG1052-1CC08-7BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 24CEo (6AG1052-2CC08-7BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 24RCE (6AG1052-1HB08-7BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIPLUS LOGO! 24RCEo (6AG1052-2HB08-7BA2): - Affected versions: All versions - Affected by vulnerability: CVE-2022-36362 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" WORKAROUNDS AND MITIGATIONS =========================== Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk: * Restrict access to port 135/tcp to trusted IP addresses only * Only for versions < V8.3: Restrict access to port 10005/tcp to trusted IP addresses only * Only for versions >= V8.3: Restrict access to port 8443/tcp to trusted IP addresses only Please follow the "General Security Recommendations". GENERAL SECURITY RECOMMENDATIONS ================================ As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial- security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity PRODUCT DESCRIPTION =================== Siemens LOGO! BM (Base Module) devices are used for basic small-scale automation tasks. SIPLUS extreme products are designed for reliable operation under extreme conditions and are based on SIMATIC, LOGO!, SITOP, SINAMICS, SIMOTION, SCALANCE or other devices. SIPLUS devices use the same firmware as the product they are based on. VULNERABILITY DESCRIPTION ========================= This chapter describes all vulnerabilities (CVE-IDs) addressed in this security advisory. Wherever applicable, it also documents the product-specific impact of the individual vulnerabilities. * Vulnerability CVE-2022-36361 Affected devices do not properly validate the structure of TCP packets in several methods. This could allow an attacker to cause buffer overflows, get control over the instruction counter and run custom code. CVSS v3.1 Base Score: 9.8 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:T/RC:C CWE: CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') * Vulnerability CVE-2022-36362 Affected devices do not conduct certain validations when interacting with them. This could allow an unauthenticated remote attacker to manipulate the devices IP address, which means the device would not be reachable and could only be recovered by power cycling the device. CVSS v3.1 Base Score: 7.5 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:T/RC:C CWE: CWE-20: Improper Input Validation * Vulnerability CVE-2022-36363 Affected devices do not properly validate an offset value which can be defined in TCP packets when calling a method. This could allow an attacker to retrieve parts of the content of the memory. CVSS v3.1 Base Score: 5.3 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:T/RC:C CWE: CWE-1285: Improper Validation of Specified Index, Position, or Offset in Input ACKNOWLEDGMENTS =============== Siemens thanks the following party for its efforts: * Cyber Research Group from Raytheon UK for reporting the vulnerabilities ADDITIONAL INFORMATION ====================== Siemens has released new hardware versions with the LOGO! V8.4 BM and the SIPLUS LOGO! V8.4 BM product families for all affected devices. Those new hardware versions fixes the vulnerabilities CVE-2022-36361 and CVE-2022-36363: - - LOGO! 12/24RCE (6ED1052-1MD08-0BA2) * LOGO! 12/24RCEo (6ED1052-2MD08-0BA2) * LOGO! 230RCE (6ED1052-1FB08-0BA2) * LOGO! 230RCEo (6ED1052-2FB08-0BA2) * LOGO! 24CE (6ED1052-1CC08-0BA2) * LOGO! 24CEo (6ED1052-2CC08-0BA2) * LOGO! 24RCE (6ED1052-1HB08-0BA2) * LOGO! 24RCEo (6ED1052-2HB08-0BA2) * SIPLUS LOGO! 12/24RCE (6AG1052-1MD08-7BA2) * SIPLUS LOGO! 12/24RCEo (6AG1052-2MD08-7BA2) * SIPLUS LOGO! 230RCE (6AG1052-1FB08-7BA2) * SIPLUS LOGO! 230RCEo (6AG1052-2FB08-7BA2) * SIPLUS LOGO! 24CE (6AG1052-1CC08-7BA2) * SIPLUS LOGO! 24CEo (6AG1052-2CC08-7BA2) * SIPLUS LOGO! 24RCE (6AG1052-1HB08-7BA2) * SIPLUS LOGO! 24RCEo (6AG1052-2HB08-7BA2) For more information please also refer to the related product support article: https://support.industry.siemens.com/cs/ww/en/view/109826554/. For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories HISTORY DATA ============ V1.0 (2022-10-11): Publication Date V1.1 (2023-12-12): Added information about additional new LOGO! V8.4 BM hardware versions V1.2 (2024-09-10): Added information about additional new SIPLUS LOGO! hardware versions: SIPLUS LOGO! 24CE and SIPLUS LOGO! 230RCE V1.3 (2024-10-08): Added information about additional new SIPLUS LOGO! hardware versions TERMS OF USE ============ Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use. 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