-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 # SSA-496292: Remote Code Execution Vulnerability in POWER METER SICAM Q100 Publication Date: 2021-12-14 Last Update: 2021-12-14 Current Version: 1.0 CVSS v3.1 Base Score: 9.1 SUMMARY ======= POWER METER SICAM Q100 contains a vulnerability that could allow an attacker to remotely execute code. Siemens has released updates for the affected products and recommends to update to the latest versions. AFFECTED PRODUCTS AND SOLUTION ============================== * POWER METER SICAM Q100 (7KG9501-0AA01-0AA1) - Affected versions: All versions < V2.41 - Remediation: Update to V2.41 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109743524 * POWER METER SICAM Q100 (7KG9501-0AA01-2AA1) - Affected versions: All versions < V2.41 - Remediation: Update to V2.41 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109743524 * POWER METER SICAM Q100 (7KG9501-0AA31-0AA1) - Affected versions: All versions < V2.41 - Remediation: Update to V2.41 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109743524 * POWER METER SICAM Q100 (7KG9501-0AA31-2AA1) - Affected versions: All versions < V2.41 - Remediation: Update to V2.41 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109743524 WORKAROUNDS AND MITIGATIONS =========================== Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk: * Restrict access to the web server e.g. with a firewall and ensure that the privileged accounts are protected by strong passwords. 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 =================== The POWER METER SICAM Q100 device is a multifunctional device for detecting, reporting, and analyzing measured values and events. 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-2021-44165 The affected firmware contains a buffer overflow vulnerability in the web application that could allow a remote attacker with engineer or admin priviliges to potentially perform remote code execution. CVSS v3.1 Base Score: 9.1 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C CWE: CWE-121: Stack-based Buffer Overflow ACKNOWLEDGMENTS =============== Siemens thanks the following parties for their efforts: * Michael Messner from Siemens Energy for reporting the vulnerability ADDITIONAL INFORMATION ====================== 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 (2021-12-14): 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. -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEHyx/myPwjH9jB9tDlm7gTEmyujQFAmG33oAACgkQlm7gTEmy ujRHGA/6A6CjhI9El6k2vJtccFb2HMP9XyfwO3mV0UyQszHLam8q368n0tmbWRYx bkttcIFIhdu+2LLR4u3o5gnwJ2qKVIskJwWMtPoZn17fr6hSKjnCvds7o6PQf2hq YZmRKTDwhP7WQqtNCxGjcfTI/WyLQI38la3sHgQ6lFFGw+FlxCijq2SQO/S+cydq RIqybMd16a1zAexKfoViwX/+wu+GzBqMQvR0i2Gm3hEVoa1P7WxUjNneZNMQUB3o wjLjPf/UCDYj4QeSEjgRqbQij2jw8j+5e3mpt0rIZr0JH3S6yPV05+7fKqouvejN irPb03O38vQm/RSlbMwVLfnxIClTpGEr7xEDlyTG5h9o/vl3Lpqws5Ij8Q11mSNG 2nkAFZE2vAcX0ys1UpFaUxwgLcnGhsLdnfC8KF1QfVZK0wx9uLliJGKjHeU+9SDX L4Ugj4WeJUU1zVH/Im9EVS4gZQuSArhybIxxJOF5Wxd6IdzKt8zM8q3Bg/nFj4wn 9RjC8q3bZMFAOYrgxo59LgRSN7BNkyW0JcIGjcb0fk1v6wBDsPjz1UcERub8hnGz i040bxAkGGyaPl6OPZI0gZzjhoe5qaDkFoPgYjtWObCIBMkP4j3CQ80T6/Y8S1SZ fxVGQhibftV18wjZqBWjH1nvwhB8UQS9pEGn5QOAsjTfabelbbM= =+DkP -----END PGP SIGNATURE-----