View CSAF The SICAM SIAPP SDK contains multiple vulnerabilities that could allow an attacker to disrupt the customer-developed SIAPP or its simulation environment. Potential impacts include denial of service within the SIAPP, corruption of SIAPP data, or exploit the simulation environment. These vulnerabilities are only exploitable if the API is used improperly or hardening measures are not applied. Siemens has released a new version for SICAM SIAPP SDK and recommends to update to the latest version. The following versions of Siemens SICAM SIAPP SDK are affected: Expand All + An out-of-bounds write vulnerability exists in SICAM SIAPP SDK. This could allow an attacker to write data beyond the intended buffer, potentially leading to denial of service, or arbitrary code execution. View CVE Details Vendor fixUpdate to V2.1.7 or later Relevant CWE:CWE-787 Out-of-bounds Write The SICAM SIAPP SDK does not perform checks on input values potentially resulting in stack overflow. This could allow an attacker to perform code execution and denial of service. View CVE Details Vendor fixUpdate to V2.1.7 or later Relevant CWE:CWE-121 Stack-based Buffer Overflow The SICAM SIAPP SDK client component does not enforce maximum length checks on certain variables before use. This could allow an attacker to send an oversized input that could trigger a stack overflow crashing the process and potentially causing denial of service. View CVE Details Vendor fixUpdate to V2.1.7 or later Relevant CWE:CWE-130 Improper Handling of Length Parameter Inconsistency The SICAM SIAPP SDK server component does not enforce maximum length checks on certain variables before use. This could allow an attacker to send an oversized input that could trigger a stack overflow crashing the process and potentially causing denial of service. View CVE Details Vendor fixUpdate to V2.1.7 or later Relevant CWE:CWE-130 Improper Handling of Length Parameter Inconsistency The affected application builds shell commands with caller-provided strings and executes them. An attacker could influence the executed command, potentially resulting in command injection and full system compromise. View CVE Details Vendor fixUpdate to V2.1.7 or later Relevant CWE:CWE-73 External Control of File Name or Path The affected application performs file deletion without properly validating the file path or target. An attacker could delete files or sockets that the affected process has permission to remove, potentially resulting in denial of service or service disruption. View CVE Details Vendor fixUpdate to V2.1.7 or later Relevant CWE:CWE-73 External Control of File Name or Path Operators of critical power systems (e.g. TSOs or DSOs) worldwide are usually required by regulations to build resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber incidents impacting the grid's reliability can thus be minimized by virtue of the grid design. Siemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. As a general security measure Siemens strongly recommends to protect network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment. Recommended security guidelines can be found at: https://www.siemens.com/gridsecurity For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use. This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability. Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its 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 on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. This ICSA is a verbatim republication of Siemens ProductCERT SSA-903736 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Siemens ProductCERT directly for any questions regarding this advisory.