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Siemens Solid Edge SE2024

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, see Siemens’ ProductCERT Security Advisories (CERT Services | Services | Siemens Global). View CSAF

  1. EXECUTIVE SUMMARY CVSS v4 7.3 ATTENTION: Low attack complexity Vendor: Siemens Equipment: Solid Edge SE2024 Vulnerabilities: Heap-based Buffer Overflow, Integer Underflow (Wrap or Wraparound)
  2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to execute code in the context of the current process.
  3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Siemens Solid Edge SE2024 are affected: Solid Edge SE2024: All versions prior to V224.0 3.2 Vulnerability Overview 3.2.1 HEAP-BASED BUFFER OVERFLOW CWE-122 The affected application is vulnerable to heap-based buffer overflow while parsing specially crafted ASM files. This could allow an attacker to execute code in the context of the current process. CVE-2024-54093 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). A CVSS v4 score has also been calculated for CVE-2024-54093. A base score of 7.3 has been calculated; the CVSS vector string is (AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N). 3.2.2 HEAP-BASED BUFFER OVERFLOW CWE-122 The affected application is vulnerable to heap-based buffer overflow while parsing specially crafted PAR files. This could allow an attacker to execute code in the context of the current process. CVE-2024-54094 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). A CVSS v4 score has also been calculated for CVE-2024-54094. A base score of 7.3 has been calculated; the CVSS vector string is (AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N). 3.2.3 INTEGER UNDERFLOW (WRAP OR WRAPAROUND) CWE-191 The affected application is vulnerable to integer underflow vulnerability which can be triggered while parsing specially crafted PAR files. This could allow an attacker to execute code in the context of the current process. CVE-2024-54095 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). A CVSS v4 score has also been calculated for CVE-2024-54095. A base score of 7.3 has been calculated; the CVSS vector string is (AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Germany 3.4 RESEARCHER Nafiez of Logix Advisor reported these vulnerabilities to Siemens.
  4. MITIGATIONS Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk: (CVE-2024-54093): Do not open untrusted ASM files in affected applications (CVE-2024-54093, CVE-2024-54094): Update to V224.0 Update 5 or later version (CVE-2024-54094, CVE-2024-54095): Do not open untrusted PAR files in affected applications (CVE-2024-54095): Update to V224.0 Update 10 or later version As a general security measure, Siemens strongly recommends protecting network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens’ operational guidelines for Industrial Security, and following the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at https://www.siemens.com/industrialsecurity and on the Siemens industrial security webpage. CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, such as: Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating 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 current version available. Also recognize 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 on the ICS webpage on cisa.gov/ics. 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/ics 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. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. These vulnerabilities are not exploitable remotely.
  5. UPDATE HISTORY December 12, 2024: Initial Publication
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