For providers

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, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global). View CSAF 1. EXECUTIVE SUMMARY CVSS v3 8.4 ATTENTION: Exploitable from adjacent network/low attack complexity Vendor: Siemens Equipment: SCALANCE W700 Vulnerability: Improper Input Validation 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to disclose sensitive information or to steal the victim's session. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following products of Siemens, are affected: SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AA0): All versions SCALANCE W721-1 RJ45 (6GK5721-1FC00-0AB0): All versions SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AA0): All versions SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AB0): All versions SCALANCE W722-1 RJ45 (6GK5722-1FC00-0AC0): All versions SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA0): All versions SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AA6): All versions SCALANCE W734-1 RJ45 (6GK5734-1FX00-0AB0): All versions SCALANCE W734-1 RJ45 (USA) (6GK5734-1FX00-0AB6): All versions SCALANCE W738-1 M12 (6GK5738-1GY00-0AA0): All versions SCALANCE W738-1 M12 (6GK5738-1GY00-0AB0): All versions SCALANCE W748-1 M12 (6GK5748-1GD00-0AA0): All versions SCALANCE W748-1 M12 (6GK5748-1GD00-0AB0): All versions SCALANCE W748-1 RJ45 (6GK5748-1FC00-0AA0): All versions SCALANCE W748-1 RJ45 (6GK5748-1FC00-0AB0): All versions SCALANCE W761-1 RJ45 (6GK5761-1FC00-0AA0): All versions SCALANCE W761-1 RJ45 (6GK5761-1FC00-0AB0): All versions SCALANCE W774-1 M12 EEC (6GK5774-1FY00-0TA0): All versions SCALANCE W774-1 M12 EEC (6GK5774-1FY00-0TB0): All versions SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AA0): All versions SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AA6): All versions SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AB0): All versions SCALANCE W774-1 RJ45 (6GK5774-1FX00-0AC0): All versions SCALANCE W774-1 RJ45 (USA) (6GK5774-1FX00-0AB6): All versions SCALANCE W778-1 M12 (6GK5778-1GY00-0AA0): All versions SCALANCE W778-1 M12 (6GK5778-1GY00-0AB0): All versions SCALANCE W778-1 M12 EEC (6GK5778-1GY00-0TA0): All versions SCALANCE W778-1 M12 EEC (USA) (6GK5778-1GY00-0TB0): All versions SCALANCE W786-1 RJ45 (6GK5786-1FC00-0AA0): All versions SCALANCE W786-1 RJ45 (6GK5786-1FC00-0AB0): All versions SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AA0): All versions SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AB0): All versions SCALANCE W786-2 RJ45 (6GK5786-2FC00-0AC0): All versions SCALANCE W786-2 SFP (6GK5786-2FE00-0AA0): All versions SCALANCE W786-2 SFP (6GK5786-2FE00-0AB0): All versions SCALANCE W786-2IA RJ45 (6GK5786-2HC00-0AA0): All versions SCALANCE W786-2IA RJ45 (6GK5786-2HC00-0AB0): All versions SCALANCE W788-1 M12 (6GK5788-1GD00-0AA0): All versions SCALANCE W788-1 M12 (6GK5788-1GD00-0AB0): All versions SCALANCE W788-1 RJ45 (6GK5788-1FC00-0AA0): All versions SCALANCE W788-1 RJ45 (6GK5788-1FC00-0AB0): All versions SCALANCE W788-2 M12 (6GK5788-2GD00-0AA0): All versions SCALANCE W788-2 M12 (6GK5788-2GD00-0AB0): All versions SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TA0): All versions SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TB0): All versions SCALANCE W788-2 M12 EEC (6GK5788-2GD00-0TC0): All versions SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AA0): All versions SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AB0): All versions SCALANCE W788-2 RJ45 (6GK5788-2FC00-0AC0): All versions SCALANCE W1748-1 M12 (6GK5748-1GY01-0AA0): All versions SCALANCE W1748-1 M12 (6GK5748-1GY01-0TA0): All versions SCALANCE W1788-1 M12 (6GK5788-1GY01-0AA0): All versions SCALANCE W1788-2 EEC M12 (6GK5788-2GY01-0TA0): All versions SCALANCE W1788-2 M12 (6GK5788-2GY01-0AA0): All versions SCALANCE W1788-2IA M12 (6GK5788-2HY01-0AA0): All versions SCALANCE WAM763-1 (6GK5763-1AL00-7DA0): All versions SCALANCE WAM766-1 (EU) (6GK5766-1GE00-7DA0): All versions SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0): All versions SCALANCE WAM766-1 EEC (EU) (6GK5766-1GE00-7TA0): All versions SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0): All versions SCALANCE WUM763-1 (6GK5763-1AL00-3AA0): All versions SCALANCE WUM763-1 (6GK5763-1AL00-3DA0): All versions SCALANCE WUM766-1 (EU) (6GK5766-1GE00-3DA0): All versions SCALANCE WUM766-1 (US) (6GK5766-1GE00-3DB0): All versions 3.2 Vulnerability Overview 3.2.1 IMPROPER INPUT VALIDATION CWE-20 The IEEE 802.11 specifications through 802.11ax allow physically proximate attackers to intercept (possibly cleartext) target-destined frames by spoofing a target's MAC address, sending Power Save frames to the access point, and then sending other frames to the access point (such as authentication frames or re-association frames) to remove the target's original security context. This behavior occurs because the specifications do not require an access point to purge its transmit queue before removing a client's pairwise encryption key. CVE-2022-47522 has been assigned to this vulnerability. A CVSS v3 base score of 8.4 has been assigned; the CVSS vector string is ( AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Multiple COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Germany 3.4 RESEARCHER Siemens reported this vulnerability to CISA. 4. MITIGATIONS Siemens recommends specific countermeasures for products where updates are not, or not yet available. Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk: SCALANCE W700 IEEE 802.11n family: Use TLS based communication Use VLAN based segregation of clients (802.1q) All other affected products: Use TLS based communication Use VLAN based segregation of clients (802.1q) Use Wi-Fi Management Frame Protection (802.11w) Recommendation for upper layers: Do not allow associations to use MAC addresses that are duplicates used by internal services on the LAN As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens' operational guidelines for industrial security and following recommendations in the product manuals. Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage For more information see the associated Siemens security advisory SSA-457702 in HTML and CSAF. CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, 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). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are 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. 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. No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely. 5. UPDATE HISTORY November 16, 2023: Initial Publication

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, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global). View CSAF 1. EXECUTIVE SUMMARY CVSS v3 9.1 ATTENTION: Exploitable remotely/Low attack complexity Vendor: Siemens Equipment: Desigo CC product family Vulnerabilities: Buffer Over-Read, Heap-Based Buffer Overflow 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow remote attackers to execute arbitrary code on the Desigo CC server or create a denial-of-service condition. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Siemens reports that the following products are affected by vulnerabilities in the underlying third-party component WIBU Systems CodeMeter Runtime: Desigo CC product family V5.0: All versions Desigo CC product family V5.1: All versions Desigo CC product family V6: All versions Desigo CC product family V7: All versions 3.2 Vulnerability Overview 3.2.1 BUFFER OVER-READ CWE-126 A buffer over-read vulnerability in the CodeMeter Runtime network server could cause the server to return packets containing data from the heap. An unauthenticated remote attacker could exploit this issue to disclose heap memory contents or crash the CodeMeter Runtime Server (i.e., CodeMeter.exe). CVE-2021-20093 has been assigned to this vulnerability. A CVSS v3 base score of 9.1 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H). 3.2.2 BUFFER OVER-READ CWE-126 A buffer over-read vulnerability in the HTTP(S) service of the CodeMeter Runtime CmWAN server could cause the server to crash. An unauthenticated remote attacker with access to the CmWAN port could exploit this issue to crash the CodeMeter Runtime Server (i.e., CodeMeter.exe). CVE-2021-20094 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). 3.2.3 HEAP-BASED BUFFER OVERFLOW CWE-122 In CodeMeter Runtime versions up to 7.60b, there is a heap buffer overflow vulnerability which can potentially lead to a remote code execution. Currently, no PoC is known to us. To exploit the heap overflow, additional protection mechanisms need to be broken. Remote access is only possible if CodeMeter is configured as a server. If CodeMeter is not configured as a server, the adversary would need to log in to the machine where the CodeMeter Runtime is running or trick the user into sending a malicious request to CodeMeter. This might result in an escalation of privilege. (WIBU-230704-01) CVE-2023-3935 has been assigned to this vulnerability. A CVSS v3 base score of 9.0 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Government Facilities COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Germany 3.4 RESEARCHER Siemens ProductCERT reported these vulnerabilities to CISA. 4. MITIGATIONS Siemens has released a patch, to update the CodeMeter Runtime component and recommends to apply the patch on affected systems. As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens' operational guidelines for industrial security and following recommendations in the product manuals. Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage For more information see the associated Siemens security advisory SSA-625850 in HTML and CSAF. For more details regarding the vulnerabilities in CodeMeter Runtime refer to: WIBU Systems Security Advisory WIBU-210423-01 WIBU Systems Security Advisory WIBU-210423-02 WIBU Systems Security Advisory WIBU-230704-01 CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. 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. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. 5. UPDATE HISTORY November 16, 2023: Initial Publication

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, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global). View CSAF 1. EXECUTIVE SUMMARY CVSS v3 8.0 ATTENTION: Exploitable from adjacent network/low attack complexity Vendor: Siemens Equipment: SIMATIC PCS neo Vulnerabilities: Missing Authentication for Critical Function, SQL Injection, Permissive Cross-domain Policy with Untrusted Domains, Cross-site Scripting 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an unauthenticated adjacent attacker to generate a privileged token and upload additional documents, execute SQL statements, trick a legitimate user to trigger unwanted behavior, and inject Javascript code into the application that is later executed by another legitimate user. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Siemens products are affected: SIMATIC PCS neo: Versions prior to V4.1 3.2 Vulnerability Overview 3.2.1 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306 The PUD Manager of affected products does not properly authenticate users in the PUD Manager web service. This could allow an unauthenticated adjacent attacker to generate a privileged token and upload additional documents. CVE-2023-46096 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been assigned; the CVSS vector string is ( AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N). 3.2.2 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN SQL COMMAND ('SQL INJECTION') CWE-89 The PUD Manager of affected products does not properly neutralize user provided inputs. This could allow an authenticated adjacent attacker to execute SQL statements in the underlying database. CVE-2023-46097 has been assigned to this vulnerability. A CVSS v3 base score of 6.3 has been assigned; the CVSS vector string is ( AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L). 3.2.3 PERMISSIVE CROSS-DOMAIN POLICY WITH UNTRUSTED DOMAINS CWE-942 When accessing the Information Server from affected products, the products use an overly permissive CORS policy. This could allow an attacker to trick a legitimate user to trigger unwanted behavior. CVE-2023-46098 has been assigned to this vulnerability. A CVSS v3 base score of 8.0 has been assigned; the CVSS vector string is ( AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.4 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION ('CROSS-SITE SCRIPTING') CWE-79 There is a stored cross-site scripting vulnerability in the Administration Console of the affected product, that could allow an attacker with high privileges to inject Javascript code into the application that is later executed by another legitimate user. CVE-2023-46099 has been assigned to this vulnerability. A CVSS v3 base score of 5.4 has been assigned; the CVSS vector string is ( AV:A/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Multiple COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Germany 3.4 RESEARCHER Michael Messner from Siemens Energy reported these vulnerabilities to Siemens. 4. MITIGATIONS Siemens has released a new version for SIMATIC PCS neo and recommends to update to the latest version: SIMATIC PCS neo: Update to V4.1 or later version As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens' operational guidelines for industrial security and following recommendations in the product manuals. Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage. For more information see the associated Siemens security advisory SSA-456933 in HTML and CSAF. 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). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are 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. 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. 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 November 16, 2023: Initial Publication

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, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global). View CSAF 1. EXECUTIVE SUMMARY CVSS v3 9.8 ATTENTION: Exploitable remotely/Low attack complexity Vendor: Siemens Equipment: COMOS Vulnerabilities: Improper Restriction of XML External Entity Reference, Path Traversal, Out-of-bounds Write, Out-of-bounds Read, Integer Overflow or Wraparound, Use After Free, Heap-based Buffer Overflow, Cleartext Transmission of Sensitive Information, Classic Buffer Overflow, Improper Access Control 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code, cause a denial-of-service condition, data infiltration, or perform access control violations. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following products of Siemens are affected: COMOS: All versions 3.2 Vulnerability Overview 3.2.1 IMPROPER RESTRICTION OF XML EXTERNAL ENTITY REFERENCE CWE-611 MPXJ through 8.1.3 allows XXE attacks. This affects the GanttProjectReader and PhoenixReader components. CVE-2020-25020 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). 3.2.2 IMPROPER LIMITATION OF A PATHNAME TO A RESTRICTED DIRECTORY ('PATH TRAVERSAL') CWE-22 common/InputStreamHelper.java in Packwood MPXJ before 8.3.5 allows directory traversal in the zip stream handler flow, leading to the writing of files to arbitrary locations. CVE-2020-35460 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N). 3.2.3 OUT-OF-BOUNDS WRITE CWE-787 Open Design Alliance Drawings SDK before 2022.12.1 mishandles the loading of JPG files. Unchecked input data from a crafted JPG file leads to memory corruption. An attacker can leverage this vulnerability to execute code in the context of the current process. CVE-2022-23095 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.4 OUT-OF-BOUNDS READ CWE-125 Open Design Alliance Drawings SDK (all versions prior to 2023.2) is vulnerable to an out-of-bounds read when rendering DWG files after they are opened in the recovery mode. This could allow an attacker to execute code in the context of the current process. CVE-2022-28807 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.5 OUT-OF-BOUNDS READ CWE-125 Open Design Alliance Drawings SDK (all versions prior to 2023.3) is vulnerable to an out-of-bounds read when reading DWG files in a recovery mode. This could allow an attacker to execute code in the context of the current process. CVE-2022-28808 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.6 OUT-OF-BOUNDS READ CWE-125 Open Design Alliance Drawings SDK (all versions prior to 2023.3) is vulnerable to an out-of-bounds read when reading a DWG file with invalid vertex number in a recovery mode. This could allow an attacker to execute code in the context of the current process. CVE-2022-28809 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.7 INTEGER OVERFLOW OR WRAPAROUND CWE-190 Integer overflow in PDFium library used in COMOS allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file. CVE-2023-0933 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.8 USE AFTER FREE CWE-416 Use after free in PDFium library used in COMOS allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. CVE-2023-1530 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.9 USE AFTER FREE CWE-416 Use after free in PDFium library used in COMOS allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file. CVE-2023-2931 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.10 USE AFTER FREE CWE-416 Use after free in PDFium library used in COMOS allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file. CVE-2023-2932 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.11 HEAP-BASED BUFFER OVERFLOW CWE-122 Open Design Alliance Drawings SDK used in affected application is vulnerable to heap-based buffer overflow while parsing specially crafted DWG files. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-19104) CVE-2023-22669 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.12 HEAP-BASED BUFFER OVERFLOW CWE-122 Open Design Alliance Drawings SDK used in affected application is vulnerable to heap-based buffer overflow while parsing specially crafted DXF files. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-19382) CVE-2023-22670 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.13 CLEARTEXT TRANSMISSION OF SENSITIVE INFORMATION CWE-319 Caching system in the affected application leaks sensitive information such as user and project information in cleartext via UDP. CVE-2023-43503 has been assigned to this vulnerability. A CVSS v3 base score of 3.5 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N). 3.2.14 BUFFER COPY WITHOUT CHECKING SIZE OF INPUT ('CLASSIC BUFFER OVERFLOW') CWE-120 Ptmcast executable used for testing cache validation service in affected application is vulnerable to Structured Exception Handler (SEH) based buffer overflow. This could allow an attacker to execute arbitrary code on the target system or cause denial of service condition. CVE-2023-43504 has been assigned to this vulnerability. A CVSS v3 base score of 9.6 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H). 3.2.15 IMPROPER ACCESS CONTROL CWE-284 The affected application lacks proper access controls in SMB shares. This could allow an attacker to access files that the user should not have access to. CVE-2023-43505 has been assigned to this vulnerability. A CVSS v3 base score of 9.6 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N). 3.2.16 IMPROPER ACCESS CONTROL CWE-284 The affected application lacks proper access controls in making the SQLServer connection. This could allow an attacker to query the database directly to access information that the user should not have access to. CVE-2023-46601 has been assigned to this vulnerability. A CVSS v3 base score of 9.6 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Germany 3.4 RESEARCHER Siemens reported these vulnerabilities to CISA. 4. MITIGATIONS Siemens recommends updating to the latest version the COMOS product: Update to V10.4.4 or later version. For CVE-2023-43503, update the COMOS database to version 25. (See "Data maintenance: Modifying the version" in the user manual. Warning: After the update, the database cannot be used by older COMOS versions). For CVE-2023-43504, delete ptmcast.exe from bin folder of COMOS installation directory. Installations from COMOS V10.4.4 or later version does not contain ptmcast.exe. Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk: For CVE-2023-43505 and CVE-2023-46601, use an application server like Citrix which builds an additional layer of access control around COMOS. The file share with the documents folder and the database should be only accessible by the application server. You can find further recommendations in the COMOS manual "Security relevant configuration" in COMOS documentation. Ensure all files imported into COMOS originate from a trusted source and transmitted are over secure channels. As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens' operational guidelines for industrial security and following recommendations in the product manuals. Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage. For more information see the associated Siemens security advisory SSA-137900 in HTML and CSAF. 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). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are 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. 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. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. 5. UPDATE HISTORY November 16, 2023: Initial Publication

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, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global). View CSAF 1. EXECUTIVE SUMMARY CVSS v3 9.8 ATTENTION: Exploitable remotely/low attack complexity Vendor: Siemens Equipment: SINEC PNI Vulnerabilities: Improper Input Validation, Out-of-bounds Write 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to achieve remote code execution, a denial-of-service condition, or perform buffer overflows. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following products of Siemens, are affected: SINEC PNI: Versions prior to V2.0 3.2 Vulnerability Overview 3.2.1 IMPROPER INPUT VALIDATION CWE-20 .NET and Visual Studio Information Disclosure Vulnerability. CVE-2022-30184 has been assigned to this vulnerability. A CVSS v3 base score of 5.5 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N). 3.2.2 OUT-OF-BOUNDS WRITE CWE-787 zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference). CVE-2022-37434 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). 3.2.3 IMPROPER INPUT VALIDATION CWE-20 NuGet Client Elevation of Privilege Vulnerability. CVE-2022-41032 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.4 IMPROPER INPUT VALIDATION CWE-20 .NET and Visual Studio Remote Code Execution Vulnerability CVE-2023-21808 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.5 IMPROPER INPUT VALIDATION CWE-20 .NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability CVE-2023-24895 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.6 IMPROPER INPUT VALIDATION CWE-20 .NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability CVE-2023-24897 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.7 IMPROPER INPUT VALIDATION CWE-20 .NET, .NET Framework, and Visual Studio Elevation of Privilege Vulnerability CVE-2023-24936 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.2.8 IMPROPER INPUT VALIDATION CWE-20 .NET DLL Hijacking Remote Code Execution Vulnerability CVE-2023-28260 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.9 IMPROPER INPUT VALIDATION CWE-20 .NET, .NET Framework, and Visual Studio Denial of Service Vulnerability CVE-2023-29331 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). 3.2.10 IMPROPER INPUT VALIDATION CWE-20 .NET and Visual Studio Elevation of Privilege Vulnerability CVE-2023-32032 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H). 3.2.11 IMPROPER INPUT VALIDATION CWE-20 .NET and Visual Studio Remote Code Execution Vulnerability CVE-2023-33126 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H). 3.2.12 IMPROPER INPUT VALIDATION CWE-20 .NET and Visual Studio Remote Code Execution Vulnerability CVE-2023-33128 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H). 3.2.13 IMPROPER INPUT VALIDATION CWE-20 .NET and Visual Studio Elevation of Privilege Vulnerability CVE-2023-33135 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been assigned; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Germany 3.4 RESEARCHER Siemens reported these vulnerabilities to CISA. 4. MITIGATIONS Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk: SINEC PNI: Update to V2.0 or later version As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens' operational guidelines for industrial security and following recommendations in the product manuals. Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage. For more information see the associated Siemens security advisory SSA-150063 in HTML and CSAF. 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). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are 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. 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. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. 5. UPDATE HISTORY November 16, 2023: Initial Publication

CISA released fourteen Industrial Control Systems (ICS) advisories on November 16, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-320-01 Red Lion Sixnet RTUs ICSA-23-320-02 Hitachi Energy MACH System Software ICSA-23-320-03 Siemens Desigo CC product family ICSA-23-320-04 Siemens Mendix Runtime ICSA-23-320-05 Siemens SCALANCE W700 ICSA-23-320-06 Siemens SIMATIC PCS neo ICSA-23-320-07 Siemens OPC UA Modeling Editor (SiOME) ICSA-23-320-08 Siemens SCALANCE Family Products ICSA-23-320-09 Siemens COMOS ICSA-23-320-10 Siemens SIPROTEC 4 7SJ66 ICSA-23-320-11 Siemens Mendix Studio Pro ICSA-23-320-12 Siemens PNI ICSA-23-320-13 Siemens SIMATIC MV500 ICSA-23-320-14 Siemens RUGGEDCOM APE1808 Devices CISA encourages users and administrators to review the newly released ICS advisories for technical details and mitigations.

Here’s how virtualized data can increase a company’s confidence that it can keep its data secure.

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Mounting QR code phishing attacks amid the COVID-19 pandemic have led SlashNext to introduce the new QR Code Phishing Protection service, which has been touted as the first-ever solution enabling multi-channel quishing defenses, reports SiliconAngle.

Increasingly prevalent healthcare cyberattacks have prompted New York to propose new cybersecurity rules for hospitals across the state, according to FierceHealthcare.