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 6.6 ATTENTION: Low attack complexity Vendor: Siemens Equipment: SICAM PAS/PQS Vulnerability: Incorrect Permission Assignment for Critical Resource 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to gain persistence or potentially escalate privileges in the context of the application process. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Siemens SICAM PAS/PQS are affected: SICAM PAS/PQS: Version 8.00 up to but not including 8.22. 3.2 Vulnerability Overview 3.2.1 Incorrect Permission Assignment for Critical Resource CWE-732 The affected application is installed with specific files and folders with insecure permissions. This could allow an authenticated attacker to gain persistence or potentially escalate privileges in the context of the application process. CVE-2023-38640 has been assigned to this vulnerability. A CVSS v3 base score of 6.6 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/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 has identified the following specific workarounds and mitigations users can apply to reduce risk: Install the Security Patch which can be applied to versions V8.00 to V8.21. Update to V8.22 or later version. Ensure that only trusted persons have access to the system and avoid the configuration of additional local accounts on the server. 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-035466 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), 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 this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely. 5. UPDATE HISTORY October 12, 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: CP-8050, CP-8031 Vulnerability: Use of Hard-coded Credentials 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker with knowledge of the corresponding credential to login to the device via SSH. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following products of Siemens, are affected if activated with debug support: CP-8031 MASTER MODULE (6MF2803-1AA00): All versions prior to CPCI85 V05.11 CP-8050 MASTER MODULE (6MF2805-0AA00): All versions prior to CPCI85 V05.11 3.2 Vulnerability Overview 3.2.1 USE OF HARD-CODED CREDENTIALS CWE-798 The affected devices contain a hard-coded ID in the SSH authorized_keys configuration file. An attacker with knowledge of the corresponding private key could login to the device via SSH. Only devices with activated debug support are affected. CVE-2023-36380 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). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Germany 3.4 RESEARCHER Steffen Robertz, Gerhard Hechenberger, Stefan Viehböck, Christian Hager, and Gorazd Jank from SEC Consult Vulnerability Lab reported the vulnerability on behalf of Netz Niederösterreich GmbH, EVN Gruppe. 4. MITIGATIONS Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk: CP-8050 MASTER MODULE (6MF2805-0AA00): Update to CPCI85 V05.11 or later version. CP-8031 MASTER MODULE (6MF2803-1AA00): Update to CPCI85 V05.11 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-134651 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. 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 this vulnerability has been reported to CISA at this time. 5. UPDATE HISTORY October 12, 2023: Initial Publication

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 9.8 ATTENTION: Exploitable remotely/low attack complexity Vendor: Weintek Equipment: cMT3000 CMI Web CGI Vulnerabilities: Stack-based Buffer Overflow, OS Command Injection 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to hijack control flow and bypass login authentication or execute arbitrary commands. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Weintek products are affected: cMT-FHD: OS version 20210210 or prior. cMT-HDM: OS version 20210204 or prior. cMT3071: OS version 20210218 or prior. cMT3072: OS version 20210218 or prior. cMT3103: OS version 20210218 or prior. cMT3090: OS version 20210218 or prior. cMT3151: OS version 20210218 or prior. 3.2 Vulnerability Overview 3.2.1 STACK-BASED BUFFER OVERFLOW CWE-121 In Weintek's cMT3000 HMI Web CGI device, the cgi-bin command_wb.cgi contains a stack-based buffer overflow, which could allow an anonymous attacker to hijack control flow and bypass login authentication. CVE-2023-38584 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). 3.2.2 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND ('OS COMMAND INJECTION') CWE-78 In Weintek's cMT3000 HMI Web CGI device, an anonymous attacker can execute arbitrary commands after login to the device. CVE-2023-40145 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.3 STACK-BASED BUFFER OVERFLOW CWE-121 In Weintek's cMT3000 HMI Web CGI device, the cgi-bin codesys.cgi contains a stack-based buffer overflow, which could allow an anonymous attacker to hijack control flow and bypass login authentication. CVE-2023-43492 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Taiwan 3.4 RESEARCHER Hank Chen (PSIRT and Threat Research of TXOne Networks) reported these vulnerabilities to CISA. 4. MITIGATIONS Weintek recommends users follow their Upgrade Instructions to update the following products to the latest versions: cMT-FHD: OS version 20210211 cMT-HDM: OS version 20210205 cMT3071: OS version 20210219 cMT3072: OS version 20210219 cMT3103: OS version 20210219 cMT3090: OS version 20210219 cMT3151: OS version 20210219 For additional information, refer to Weintek's security bulletin. CISA recommends users take defensive measures to minimize the risk of exploitation of this 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. 5. UPDATE HISTORY October 12, 2023: Initial Publication

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 6.5 ATTENTION: Exploitable remotely/low attack complexity Vendor: Advantech Equipment: WebAccess Vulnerability: Exposure of Sensitive Information to an Unauthorized Actor 2. RISK EVALUATION Successful exploitation of this vulnerability could leak user credentials. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Advantech WebAccess, are affected: Advantech WebAccess: Version 9.1.3. 3.2 Vulnerability Overview 3.2.1 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200 Advantech WebAccess Version 9.1.3 could expose user credentials to an unauthorized actor. When configuring or modifying account information on the device, an unauthorized actor can use the Cloud Agent Debug service to capture user credentials. CVE-2023-4215 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Energy, Water and Wastewater Systems COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Taiwan 3.4 RESEARCHER Elcazators reported this vulnerability to CISA. 4. MITIGATIONS Advantech recommends users update WebAccess to Version 9.1.4. 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), 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 this vulnerability has been reported to CISA at this time. 5. UPDATE HISTORY October 12, 2023: Initial Publication

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 7.8 ATTENTION: Low attack complexity Vendor: Santesoft Equipment: Sante FFT Imaging Vulnerability: Out-of-Bounds Read 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to disclose information and execute arbitrary code. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Santesof products are affected: Sante FFT Imaging: Versions v1.4.0 and prior 3.2 Vulnerability Overview 3.2.1 OUT-OF-BOUNDS READ CWE-125 The affected application lacks proper validation of user-supplied data when parsing DICOM files. This could lead to an out-of-bounds read. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process. CVE-2023-5059 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). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Cyprus 3.4 RESEARCHER Michael Heinzl reported this vulnerability to CISA. 4. MITIGATIONS Santesoft has released an updated version of their product and recommends users update to Sante FFT Imaging to v1.4.1. 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), 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 this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely. 5. UPDATE HISTORY October 12, 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 7.8 ATTENTION: Low Attack Complexity Vendor: Siemens Equipment: SIMATIC CP products Vulnerabilities: Improper Access Control, Uncontrolled Resource Consumption 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to execute code, access the PROFINET network without restrictions or perform denial of service attacks. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following products of Siemens, are affected: SIMATIC CP 1604 (6GK1160-4AA01): all versions SIMATIC CP 1616 (6GK1161-6AA02): all versions SIMATIC CP 1623 (6GK1162-3AA00): all versions SIMATIC CP 1626 (6GK1162-6AA01): all versions SIMATIC CP 1628 (6GK1162-8AA00): all versions 3.2 Vulnerability Overview 3.2.1 IMPROPER ACCESS CONTROL CWE-284 The kernel memory of affected devices is exposed to user-mode via direct memory access (DMA) which could allow an attacker to execute arbitrary code on the host system as well as access the PROFINET network without any restrictions. CVE-2023-37194 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). 3.2.2 UNCONTROLLED RESOURCE CONSUMPTION CWE-400 Affected devices insufficiently control continuous mapping of direct memory access (DMA) requests. This could allow local attackers to cause a denial-of-service situation on the host. A physical power cycle is required to get the system working again. CVE-2023-37195 has been assigned to this vulnerability. A CVSS v3 base score of 5.5 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Multiple COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Germany 3.4 RESEARCHER Thomas Riedmaier from Siemens Energy reported these vulnerabilities to Siemens. 4. MITIGATIONS Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk: Ensure that only trusted persons have access to the system and avoid the configuration of additional accounts. 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-784849 in HTML and CSAF. 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. 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 October 12, 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 7.8 ATTENTION: Low attack complexity Vendor: Siemens Equipment: Xpedition Layout Browser Vulnerability: Stack-Based Buffer Overflow 2. RISK EVALUATION An attacker could leverage this vulnerability to execute code in the context of the current process. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Siemens Xpedition Layout Browser are affected: Xpedition Layout Browser: All versions prior to VX.2.14 3.2 Vulnerability Overview 3.2.1 Stack-Based Buffer Overflow CWE-121 Affected application contains a stack overflow vulnerability when parsing a PCB file. An attacker can leverage this vulnerability to execute code in the context of the current process. CVE-2023-30900 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). 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 has identified the following specific workarounds and mitigations users can apply to reduce risk: Update to VX.2.14 or later version. Do not open untrusted PCB files in Xpedition Layout Browser. 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-829656 in HTML and CSAF. CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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. 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 this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely. 5. UPDATE HISTORY October 12, 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 7.1 ATTENTION: Exploitable remotely/low attack complexity Vendor: Siemens Equipment: RUGGEDCOM APE1808 Vulnerabilities: SQL Injection, Cross-site Scripting, Improper Input Validation, Incorrect Authorization, Session Fixation 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an authenticated attacker to execute arbitrary SQL queries or injected code. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following products of Siemens, are affected: RUGGEDCOM APE1808 with Nozomi Guardian / CMC: versions prior to V22.6.2 3.2 Vulnerability Overview 3.2.1 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN SQL COMMAND ('SQL INJECTION') CWE-89 A blind SQL Injection vulnerability in Nozomi Networks Guardian and CMC, due to improper input validation in the sorting parameter, allows an authenticated attacker to execute arbitrary SQL queries on the DBMS used by the web application. Authenticated users can extract arbitrary information from the DBMS in an uncontrolled way. CVE-2023-22378 has been assigned to this vulnerability. A CVSS v3 base score of 7.1 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L). 3.2.2 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION ('CROSS-SITE SCRIPTING') CWE-79 An authenticated attacker with administrative access to the appliance can inject malicious JavaScript code inside the definition of a threat intelligence rule, that will later be executed by another legitimate user viewing the details of such a rule. An attacker may be able to perform unauthorized actions on behalf of legitimate users. JavaScript injection was possible in the content for Yara rules, while limited HTML injection has been proven for packet and STYX rules. The injected code will be executed in the context of the authenticated victim's session. CVE-2023-22843 has been assigned to this vulnerability. A CVSS v3 base score of 6.4 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:L). 3.2.3 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN SQL COMMAND ('SQL INJECTION') CWE-89 A blind SQL Injection vulnerability in Nozomi Networks Guardian and CMC, due to improper input validation in the alerts_count component, allows an authenticated attacker to execute arbitrary SQL queries on the DBMS used by the web application. Authenticated users can extract arbitrary information from the DBMS in an uncontrolled way. CVE-2023-23574 has been assigned to this vulnerability. A CVSS v3 base score of 7.1 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L). 3.2.4 IMPROPER INPUT VALIDATION CWE-20 An authenticated administrator can upload a SAML configuration file with the wrong format, with the application not checking the correct file format. Every subsequent application request will return an error. The whole application in rendered unusable until a console intervention. CVE-2023-23903 has been assigned to this vulnerability. A CVSS v3 base score of 4.9 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H). 3.2.5 IMPROPER INPUT VALIDATION CWE-20 A partial denial-of-service vulnerability has been detected in the reports section, exploitable by a malicious authenticated user forcing a report to be saved with its name set as null. The reports section will be partially unavailable for all later attempts to use it, with the report list seemingly stuck on loading. CVE-2023-24015 has been assigned to this vulnerability. A CVSS v3 base score of 4.3 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L). 3.2.6 INCORRECT AUTHORIZATION CWE-863 An access control vulnerability was found, due to the restrictions that are applied on actual assertions not being enforced in their debug functionality. An authenticated user with reduced visibility can obtain unauthorized information via the debug functionality, obtaining data that would normally be not accessible in the query and assertions functions. CVE-2023-24471 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). 3.2.7 SESSION FIXATION CWE-384 In certain conditions, depending on timing and the usage of the Chrome web browser, Guardian/CMC versions before 22.6.2 do not always completely invalidate the user session upon logout, resulting in the opportunity for an authenticated local attacker to gain access to the original user's session. CVE-2023-24477 has been assigned to this vulnerability. A CVSS v3 base score of 5.0 has been calculated; the CVSS vector string is ( CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Multiple COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: Germany 3.4 RESEARCHER Siemens ProductCERT reported these vulnerabilities to CISA. 4. MITIGATIONS Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk: Use internal firewall features to limit access to the web management interface. Adopt best practices that include closing the browser after a logout. 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-647455 in HTML and CSAF. 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 October 12, 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 7.8 ATTENTION: Low Attack Complexity Vendor: Siemens Equipment: Tecnomatix Plant Simulation Vulnerabilities: Out-of-bounds Write, Out-of-bounds Read 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to perform code execution after leading a user to open a specially crafted SPP file on a system running an affected product. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following products of Siemens, are affected: Tecnomatix Plant Simulation V2201: All versions prior to V2201.0009 Tecnomatix Plant Simulation V2302: All versions prior to V2302.0003 3.2 Vulnerability Overview 3.2.1 OUT-OF-BOUNDS WRITE CWE-787 The affected application contains an out-of-bounds write past the end of an allocated buffer while parsing a specially crafted SPP file. This could allow an attacker to execute code in the context of the current process. CVE-2023-44081 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). 3.2.2 OUT-OF-BOUNDS WRITE CWE-787 The affected application contains an out-of-bounds write past the end of an allocated buffer while parsing a specially crafted SPP file. This could allow an attacker to execute code in the context of the current process. CVE-2023-44082 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). 3.2.3 OUT-OF-BOUNDS WRITE CWE-787 The affected application contains an out-of-bounds write past the end of an allocated buffer while parsing a specially crafted SPP file. This could allow an attacker to execute code in the context of the current process. CVE-2023-44083 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 The affected applications contain an out-of-bounds read past the end of an allocated structure while parsing specially crafted SPP files. This could allow an attacker to execute code in the context of the current process. CVE-2023-44084 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 The affected applications contain an out-of-bounds read past the end of an allocated structure while parsing specially crafted SPP files. This could allow an attacker to execute code in the context of the current process. CVE-2023-44085 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 The affected applications contain an out-of-bounds read past the end of an allocated structure while parsing specially crafted SPP files. This could allow an attacker to execute code in the context of the current process. CVE-2023-44086 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 OUT-OF-BOUNDS READ CWE-125 The affected applications contain an out-of-bounds read past the end of an allocated structure while parsing specially crafted SPP files. This could allow an attacker to execute code in the context of the current process. CVE-2023-44087 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). 3.3 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: Tecnomatix Plant Simulation V2201: Update to V2201.0009 or later version. Tecnomatix Plant Simulation V2302: Update to V2302.0003 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-524778 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. These vulnerabilities are not exploitable remotely. 5. UPDATE HISTORY October 12, 2023: Initial Publication

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