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 v4 9.4
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Siemens
• Equipment: SIMATIC SCADA and PCS 7 Systems
• Vulnerability: Execution with Unnecessary Privileges

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to execute arbitrary code with high privileges.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following Siemens products are affected:

• SIMATIC BATCH V9.1: All versions
• SIMATIC Information Server 2020: All versions
• SIMATIC Information Server 2022: All versions
• SIMATIC PCS 7 V9.1: All versions
• SIMATIC Process Historian 2020: All versions
• SIMATIC Process Historian 2022: All versions
• SIMATIC WinCC Runtime Professional V18: All versions
• SIMATIC WinCC Runtime Professional V19: All versions
• SIMATIC WinCC V7.4: All versions
• SIMATIC WinCC V7.5: All versions prior to V7.5 SP2 Update 18
• SIMATIC WinCC V8.0: All versions prior to V8.0 Update 5

3.2 Vulnerability Overview

3.2.1 EXECUTION WITH UNNECESSARY PRIVILEGES CWE-250

The affected products run their DB server with elevated privileges which could allow an authenticated attacker to execute arbitrary OS commands with administrative privileges.

CVE-2024-35783 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:H/UI:N/S:C/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2024-35783. A base score of 9.4 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Chemical, Energy, Food and Agriculture, and Water and Wastewater Systems
• 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:

• SIMATIC WinCC V7.5: Update to V7.5 SP2 Update 18 or later version
• SIMATIC WinCC V8.0: Update to V8.0 Update 5 or later version
• SIMATIC PCS 7: Update WinCC to V7.5 SP2 Update 18 or later version
• SIMATIC PCS 7 V9.1: Update WinCC to V7.5 SP2 Update 18 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-629254 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.

5. UPDATE HISTORY

• September 12, 2024: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 8.7
• ATTENTION: Exploitable from an adjacent network/low attack complexity
• Vendor: AutomationDirect
• Equipment: DirectLogic H2-DM1E
• Vulnerabilities: Session Fixation, Authentication Bypass by Capture-replay

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to inject traffic into an ongoing authenticated session or authenticate as a valid user.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of DirectLogic H2-DM1E, a programmable logic controller, are affected:

• DirectLogic H2-DM1E: Versions 2.8.0 and prior

3.2 Vulnerability Overview

3.2.1 Authentication Bypass by Capture-replay CWE-294

The session hijacking attack targets the application layer’s control mechanism, which manages authenticated sessions between a host PC and a PLC. During such sessions, a session key is utilized to maintain security. However, if an attacker captures this session key, they can inject traffic into an ongoing authenticated session. To successfully achieve this, the attacker also needs to spoof both the IP address and MAC address of the originating host which is typical of a session-based attack.

CVE-2024-43099 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2024-43099. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.2.2 Session Fixation CWE-384

The H2-DM1E PLC’s authentication protocol appears to utilize either a custom encoding scheme or a challenge-response protocol. However, there’s an observed anomaly in the H2-DM1E PLC’s protocol execution, namely its acceptance of multiple distinct packets as valid authentication responses. This behavior deviates from standard security practices where a single, specific response or encoding pattern is expected for successful authentication.

CVE-2024-45368 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.8 has been calculated; the CVSS vector string is (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2024-45368. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Dams, Food and Agriculture
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: United States

3.4 RESEARCHER

Daniel Davenport, Nicholas Meier, Matthew Zelinsky, and Ryan Silva of John Hopkins Applied Physics Lab reported these vulnerabilities to CISA.

4. MITIGATIONS

As part of their ongoing risk assessment, AutomationDirect has determined that the H2-DM1E, due to its age and inherent architectural limitations, can no longer be supported within the secure development lifecycle.

To address these challenges, AutomationDirect recommends the following mitigation strategies based on a thorough risk assessment:

• Upgrade to the BRX platform: Transitioning to the BRX platform is strongly advised, as it is designed to meet current security standards and is actively maintained within AutomationDirect’s secure development lifecycle.
• Network segmentation and air gapping: To mitigate risks associated with the H2-DM1E, AutomationDirect recommends implementing network segmentation and air gapping. This strategy will isolate the older technology from the broader network, reducing its exposure to external threats and minimizing the impact of any security vulnerabilities.
• Deploy a StrideLinx secure VPN platform: AutomationDirect also recommends placing the system behind a StrideLinx VPN platform.

These mitigation strategies provide a comprehensive approach to managing the risks associated with the H2-DM1E while preparing for future security needs. Please reach out to AutomationDirect if you have any further questions or require additional details on these recommendations.

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/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 these vulnerabilities has been reported to CISA at this time.

5. UPDATE HISTORY

• September 12, 2024: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v3 7.8
• ATTENTION: Low attack complexity
• Vendor: Rockwell Automation
• Equipment: AADvance Trusted SIS Workstation
• Vulnerabilities: Improper Input Validation

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could result in an attacker executing code within the context of a current process.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of AADvance Trusted SIS Workstation, a manufacturing controller management suite, are affected:

• AADvance Trusted SIS Workstation: 2.00.01 and prior

3.2 Vulnerability Overview

3.2.1 IMPROPER INPUT VALIDATION CWE-20

A vulnerability exists which could allow remote threat actors to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability because the target must visit a malicious page or open a malicious file. The specific vulnerability exists in the analysis of 7Z files. The problem results from the lack of proper validation of user-supplied data, which can lead to an integer underflow before writing to memory. A threat actor can exploit this vulnerability to execute code in the context of the current process.

CVE-2023-31102 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).

3.2.2 Out-of-bounds Write CWE-787

A SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution exists in 7-Zip that allows remote threat actors to execute arbitrary code on affected installations of 7-Zip. User interaction is also required to exploit this vulnerability, as the target must visit a malicious page or open a malicious file. The specific vulnerability arises during the analysis of SQFS files due to the lack of proper validation of user-supplied data. This can cause a write operation to exceed the end of an allocated buffer. A threat actor can exploit this vulnerability to execute code in the context of the current process.

CVE-2023-40481 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: Critical Manufacturing
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: United States

3.4 RESEARCHER

Rockwell Automation reported these vulnerabilities to CISA.

4. MITIGATIONS

Rockwell Automation offers users the following solutions:

• AADvance Trusted SIS Workstation: Update to version 2.00.02 or later

Users using the affected software, who are not able to upgrade to the corrected version, are encouraged to apply security best practices, where possible.   

• Security Best Practices

Rockwell Automation users with the affected software are encouraged to apply the following additional risk mitigations, if possible:

• Do not archive or restore projects from unknown sources.
• For information on how to mitigate Security Risks on industrial automation control systems, we encourage users to implement our suggested security best practices to minimize the risk of the vulnerability.

For more information about this issue, please see the advisory on the Rockwell Automation security page.

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.

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

• September 12, 2024: Initial Publication

View CSAF

1. EXECUTIVE SUMMARY

• CVSS v4 9.2
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Rockwell Automation
• Equipment: FactoryTalk
• Vulnerability: Command Injection

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to perform unauthenticated remote code execution.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Rockwell Automation FactoryTalk View Site, are affected:

• FactoryTalk View Site Edition: Versions V12.0, V13.0, V14.0

3.2 Vulnerability Overview

3.2.1 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN A COMMAND (‘COMMAND INJECTION’) CWE-77

A remote code vulnerability exists in the affected products. The vulnerability occurs when chained with path traversal, command injection, and XSS vulnerabilities and allows for full unauthenticated remote code execution. The link in the mitigations section below contains patches to fix this issue.

CVE-2024-45824 has been assigned to this vulnerability. A CVSS v3.1 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).

A CVSS v4 score has also been calculated for CVE-2024-45824. A base score of 9.2 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:P/PR:N/UI:N/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: United States

3.4 RESEARCHER

Rockwell Automation reported this vulnerability to CISA.

4. MITIGATIONS

Rockwell Automation offers users the following solutions:

• FactoryTalk View Site Edition: Patches available here

Users with the affected software are encouraged to apply the risk mitigations, if possible.

• Navigate to the following link and apply patches, directions are on the link page
• For information on how to mitigate Security Risks on industrial automation control systems, we encourage users to implement our suggested security best practices to minimize the risk of the vulnerability.

For more information about this issue, please see the advisory on the Rockwell Automation security page.

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

• September 12, 2024: Initial Publication

CISA released twenty-five Industrial Control Systems (ICS) advisories on September 12, 2024. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

• ICSA-24-256-01 Siemens SINEMA Remote Connect Server
• ICSA-24-256-02 Siemens SINUMERIK ONE, SINUMERIK 840D and SINUMERIK 828D
• ICSA-24-256-03 Siemens User Management Component (UMC)
• ICSA-24-256-04 Siemens SINUMERIK Systems
• ICSA-24-256-05 Siemens Mendix Runtime
• ICSA-24-256-06 Siemens Automation License Manager
• ICSA-24-256-07 Siemens SIMATIC RFID Readers
• ICSA-24-256-08 Siemens Industrial Products
• ICSA-24-256-09 Siemens SIMATIC, SIPLUS, and TIM
• ICSA-24-256-10 Siemens SINEMA
• ICSA-24-256-11 Siemens Industrial Edge Management
• ICSA-24-256-12 Siemens Tecnomatix Plant Simulation
• ICSA-24-256-13 Siemens SCALANCE W700
• ICSA-24-256-14 Siemens SIMATIC SCADA and PCS 7 Systems
• ICSA-24-256-15 Siemens Industrial Products
• ICSA-24-256-16 Siemens Third Party Component in SICAM and SITIPE Products
• ICSA-24-256-17 AutomationDirect DirectLogic H2-DM1E
• ICSA-24-256-18 Rockwell Automation ControlLogix/GuardLogix 5580 and CompactLogix/Compact GuardLogix 5380
• ICSA-24-256-19 Rockwell Automation OptixPanel
• ICSA-24-256-20 Rockwell Automation AADvance Trusted SIS Workstation
• ICSA-24-256-21 Rockwell Automation 5015-U8IHFT
• ICSA-24-256-22 Rockwell Automation FactoryTalk Batch View
• ICSA-24-256-23 Rockwell Automation FactoryTalk View Site
• ICSA-24-256-24 Rockwell Automation Pavilion8
• ICSA-24-256-25 Rockwell Automation ThinManager

CISA encourages users and administrators to review newly released ICS advisories for technical details and mitigations.

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 v4 5.3
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Siemens
• Equipment: SINEMA Remote Connect Server
• Vulnerability: Session Fixation

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow a remote attacker to circumvent the additional multi-factor authentication for user session establishment.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Siemens reports that the following versions of SINEMA Remote Connect Server, a remote network management platform, are affected:

• SINEMA Remote Connect Server: versions prior to V3.2 SP2

3.2 Vulnerability Overview

3.2.1 SESSION FIXATION CWE-384

The affected application does not properly handle user session establishment and invalidation. This could allow a remote attacker to circumvent the additional multi-factor authentication for user session establishment.

CVE-2024-42345 has been assigned to this vulnerability. A CVSS v3 base score of 4.3 has been assigned; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N).

A CVSS v4 score has also been calculated for CVE-2024-42345. A base score of 8.5 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Commercial Facilities, Energy, Food and Agriculture, Healthcare and Public Health, Transportation Systems, Water and Wastewater Systems
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Germany

3.4 RESEARCHER

Siemens reported this vulnerability to CISA.

4. MITIGATIONS

Siemens has released a new version for SINEMA Remote Connect Client and recommends to update to V3.2 SP2 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-869574 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.

5. UPDATE HISTORY

• September 12, 2024: Initial Publication