-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 # SSA-348662: Multiple Vulnerabilities in SIMATIC MV500 Devices before V3.3 Publication Date: 2022-07-12 Last Update: 2022-07-12 Current Version: 1.0 CVSS v3.1 Base Score: 8.0 SUMMARY ======= SIMATIC MV500 devices before V3.3 are affected by multiple vulnerabilities that could allow attackers to hijack other users' web based management sessions (CVE-2022-33137) or access data on the device without prior authentication (CVE-2022-33138). Siemens has released an update for the SIMATIC MV500 devices and recommends to update to the latest version. Note that the update also contains additional fixes for vulnerabilities documented in Siemens Security Advisory SSA-712929. AFFECTED PRODUCTS AND SOLUTION ============================== * SIMATIC MV540 H (6GF3540-0GE10) - Affected versions: All versions < V3.3 - Remediation: Update to V3.3 or later version - Download: https://support.industry.siemens.com/cs/ww/en/view/109811878/ * SIMATIC MV540 S (6GF3540-0CD10) - Affected versions: All versions < V3.3 - Remediation: Update to V3.3 or later version - Download: https://support.industry.siemens.com/cs/ww/en/view/109811878/ * SIMATIC MV550 H (6GF3550-0GE10) - Affected versions: All versions < V3.3 - Remediation: Update to V3.3 or later version - Download: https://support.industry.siemens.com/cs/ww/en/view/109811878/ * SIMATIC MV550 S (6GF3550-0CD10) - Affected versions: All versions < V3.3 - Remediation: Update to V3.3 or later version - Download: https://support.industry.siemens.com/cs/ww/en/view/109811878/ * SIMATIC MV560 U (6GF3560-0LE10) - Affected versions: All versions < V3.3 - Remediation: Update to V3.3 or later version - Download: https://support.industry.siemens.com/cs/ww/en/view/109811878/ * SIMATIC MV560 X (6GF3560-0HE10) - Affected versions: All versions < V3.3 - Remediation: Update to V3.3 or later version - Download: https://support.industry.siemens.com/cs/ww/en/view/109811878/ WORKAROUNDS AND MITIGATIONS =========================== Product specific remediations or mitigations can be found in the section "Affected Products and Solution". 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 =================== SIMATIC MV500 products are stationary optical readers, used to reliably capture printed, lasered, drilled, punched and dotpeen codes on a variety of different surfaces. VULNERABILITY CLASSIFICATION ============================ The vulnerability classification has been performed by using the CVSS scoring system in version 3.1 (CVSS v3.1) (https://www.first.org/cvss/). The CVSS environmental score is specific to the customer's environment and will impact the overall CVSS score. The environmental score should therefore be individually defined by the customer to accomplish final scoring. An additional classification has been performed using the CWE classification, a community-developed list of common software security weaknesses. This serves as a common language and as a baseline for weakness identification, mitigation, and prevention efforts. A detailed list of CWE classes can be found at: https://cwe.mitre.org/. * Vulnerability CVE-2022-33137 The web session management of affected devices does not invalidate session ids in certain logout scenarios. This could allow an authenticated remote attacker to hijack other users' sessions. CVSS v3.1 Base Score: 8.0 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C CWE: CWE-613: Insufficient Session Expiration * Vulnerability CVE-2022-33138 Affected devices do not perform authentication for several web API endpoints. This could allow an unauthenticated remote attacker to read and download data from 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:H/I:N/A:N/E:P/RL:O/RC:C CWE: CWE-306: Missing Authentication for Critical Function ADDITIONAL INFORMATION ====================== The update of SIMATIC MV500 devices to V3.3 also contains additional fixes for vulnerabilities documented in the following Siemens Security Advisory: - - SSA-712929 (https://cert-portal.siemens.com/productcert/html/ssa-712929.html) Refer to the corresponding link for further details. 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 (2022-07-12): Publication Date 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. Copyright: Siemens 2022 -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEHyx/myPwjH9jB9tDlm7gTEmyujQFAmLMuYAACgkQlm7gTEmy ujQqtxAAitjq0/oNPINLjt/36e4DLLHj0OzjQ/JYsH0kOxcUYHpyLTS52eoc0za2 E+yf1M0ZAeLI3b0OIHrasR6T7vPFJB6b94DIjv6kNXFe16jwqLPGkszJR79C2+do roWlT4rSFBBgCD9KlIPsM9RXmXMM6u6QCtcM99+/05KigQu28aKogBAfB29lhSG/ EjP6FVuKWbPv8JYKnui4Wjd+i2Oao+adGKuPgXJBkVw0MLTP+oJh7tma96CPe4+P zbabi+0Hjkusyqhv92kCPNNAHtFM2hOvaoRlRlKHxNHrUAhUE52DGSsUb/VvPwNA jHbDJ0V5gyzNAq2ImVVo7QTJseuCdclga2q6+hi98j0b5rE9CzGr+q5XipCnobq5 6aVTkO30BCbbSOnzEXhcuwwWEt0ENnFtkM9iXfdcPHsJZrfFiNjnh4TlzAVKVHDQ byLO9qZaA6egxb4K6VK/nKswPkho4j4AXKZLmHV3W4jQ0sIKtTqgAp6j8gz3Oh14 H9M4jc5iVPmvMNowwOLfXRYZ0F0DdNCCxXz8I2XSc33edzQok8RSmXVTTdE2iYMc aPiJfXV8+caDDukG+aiwZVYJNEX7tb/KJZTT3bfFLa2dckVeKe3xjHZBSE8/CXL5 YafAGKbtIuhiuCLlkZmVzeZ4BxYzuHIzIar/x3aC3/xuJxM30iY= =8810 -----END PGP SIGNATURE-----