Category: CISA Alerts

 ​CISA released four Industrial Control Systems (ICS) advisories on October 31, 2024. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

ICSA-24-305-01 Rockwell Automation FactoryTalk ThinManager
ICSA-24-030-02 Mitsubishi Electric FA Engineering Software Products (Update A)
ICSA-24-135-04 Mitsubishi Electric Multiple FA Engineering Software Products (Update A)
ICSA-23-157-02 Mitsubishi Electric MELSEC iQ-R Series/iQ-F Series (Update B)

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

CISA released four Industrial Control Systems (ICS) advisories on October 31, 2024. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

• ICSA-24-305-01 Rockwell Automation FactoryTalk ThinManager
• ICSA-24-030-02 Mitsubishi Electric FA Engineering Software Products (Update A)
• ICSA-24-135-04 Mitsubishi Electric Multiple FA Engineering Software Products (Update A)
• ICSA-23-157-02 Mitsubishi Electric MELSEC iQ-R Series/iQ-F Series (Update B)

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

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 ​Fortinet has updated their security advisory addressing a critical FortiManager vulnerability (CVE-2024-47575) to include additional workarounds and indicators of compromise (IOCs). A remote, unauthenticated cyber threat actor could exploit this vulnerability to gain access to sensitive files or take control of an affected system. At this time, all patches have been released.
CISA previously added this vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation, as confirmed by Fortinet.
CISA strongly encourages users and administrators to apply the necessary updates, hunt for any malicious activity, assess potential risk from service providers, report positive findings to CISA, and review the following articles for additional information: 

Fortinet Advisory FG-IR-24-423, 
CISA alert on the Fortinet FortiManager Missing Authentication Vulnerability, 
Google Threat Intelligence article Investigating FortiManager Zero-Day Exploitation (CVE-2024-47575). 

Fortinet has updated their security advisory addressing a critical FortiManager vulnerability (CVE-2024-47575) to include additional workarounds and indicators of compromise (IOCs). A remote, unauthenticated cyber threat actor could exploit this vulnerability to gain access to sensitive files or take control of an affected system. At this time, all patches have been released.

CISA previously added this vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation, as confirmed by Fortinet.

CISA strongly encourages users and administrators to apply the necessary updates, hunt for any malicious activity, assess potential risk from service providers, report positive findings to CISA, and review the following articles for additional information: 

• Fortinet Advisory FG-IR-24-423, 
• CISA alert on the Fortinet FortiManager Missing Authentication Vulnerability, 
• Google Threat Intelligence article Investigating FortiManager Zero-Day Exploitation (CVE-2024-47575).

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 ​CISA, through the Joint Cyber Defense Collaborative (JCDC), enabled swift, coordinated response and information sharing in the wake of a significant IT outage caused by a CrowdStrike software update. This outage, which impacted government, critical infrastructure, and industry across the globe, led to disruptions in essential services, including air travel, healthcare, and financial operations.
Leveraging its unique ability to bring together public and private sector partners, JCDC facilitated virtual engagements with over 1,000 federal agency representatives. In close collaboration with CrowdStrike, a JCDC partner, CISA provided critical updates, mitigation guidance, and analysis on the potential for malicious exploitation of the outage. This rapid coordination enabled key information to be quickly disseminated across federal networks, helping to expedite mitigation and protect U.S. government systems.
This successful response underscores JCDC’s essential role in uniting industry and government partners to address cyber challenges that could impact national security and resilience. For more information about JCDC’s collaborative efforts, visit the JCDC Success Stories webpage and CISA.gov/JCDC. 

CISA, through the Joint Cyber Defense Collaborative (JCDC), enabled swift, coordinated response and information sharing in the wake of a significant IT outage caused by a CrowdStrike software update. This outage, which impacted government, critical infrastructure, and industry across the globe, led to disruptions in essential services, including air travel, healthcare, and financial operations.

Leveraging its unique ability to bring together public and private sector partners, JCDC facilitated virtual engagements with over 1,000 federal agency representatives. In close collaboration with CrowdStrike, a JCDC partner, CISA provided critical updates, mitigation guidance, and analysis on the potential for malicious exploitation of the outage. This rapid coordination enabled key information to be quickly disseminated across federal networks, helping to expedite mitigation and protect U.S. government systems.

This successful response underscores JCDC’s essential role in uniting industry and government partners to address cyber challenges that could impact national security and resilience. For more information about JCDC’s collaborative efforts, visit the JCDC Success Stories webpage and CISA.gov/JCDC.

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 ​Apple released security updates to address vulnerabilities in multiple Apple products. A cyber threat actor could exploit some of these vulnerabilities to take control of an affected system.  

CISA encourages users and administrators to review the following advisories and apply necessary updates: 

iOS 18.1 and iPadOS 18.1

iOS 17.7.1 and iPadOS 17.7.1

macOS Sequoia 15.1

macOS Sonoma 14.7.1

macOS Ventura 13.7.1

watchOS 11.1

tvOS 18.1

visionOS 2.1 

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 ​View CSAF
1. EXECUTIVE SUMMARY

CVSS v4 5.1
ATTENTION: Exploitable remotely/low attack complexity/public exploits are available
Vendor: Solar-Log
Equipment: Base 15
Vulnerability: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)

2. RISK EVALUATION
Successful exploitation of this vulnerability could result in an attacker obtaining unauthorized access.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of Solar-Log Base 15 are affected:

Base 15: Firmware 6.0.1 Build 161

3.2 Vulnerability Overview
The affected product is vulnerable to a cross-site scripting attack, which may allow an attacker to bypass access controls and gain unauthorized access.
CVE-2023-46344 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.4 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).
A CVSS v4 score has also been calculated for CVE-2023-46344. A base score of 5.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:L).
3.3 BACKGROUND

CRITICAL INFRASTRUCTURE SECTORS: Energy
COUNTRIES/AREAS DEPLOYED: Multiple
COMPANY HEADQUARTERS LOCATION: Germany

3.4 RESEARCHER
CISA discovered a public proof of concept (PoC) as authored by Vincent McRae and Mesut Cetin of Redteamer IT Security and reported it to Solar-Log.
4. MITIGATIONS
Solar-Log has released the following versions for users to download:

Base 15: Firmware 6.2.0-170

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 29, 2024: Initial Publication 

View CSAF

1. EXECUTIVE SUMMARY

CVSS v4 5.1
ATTENTION: Exploitable remotely/low attack complexity/public exploits are available
Vendor: Solar-Log
Equipment: Base 15
Vulnerability: Improper Neutralization of Input During Web Page Generation (‘Cross-site Scripting’)

2. RISK EVALUATION

Successful exploitation of this vulnerability could result in an attacker obtaining unauthorized access.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Solar-Log Base 15 are affected:

Base 15: Firmware 6.0.1 Build 161

3.2 Vulnerability Overview

The affected product is vulnerable to a cross-site scripting attack, which may allow an attacker to bypass access controls and gain unauthorized access.

CVE-2023-46344 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.4 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).

A CVSS v4 score has also been calculated for CVE-2023-46344. A base score of 5.1 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:L).

3.3 BACKGROUND

CRITICAL INFRASTRUCTURE SECTORS: Energy
COUNTRIES/AREAS DEPLOYED: Multiple
COMPANY HEADQUARTERS LOCATION: Germany

3.4 RESEARCHER

CISA discovered a public proof of concept (PoC) as authored by Vincent McRae and Mesut Cetin of Redteamer IT Security and reported it to Solar-Log.

4. MITIGATIONS

Solar-Log has released the following versions for users to download:

Base 15: Firmware 6.2.0-170

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 29, 2024: Initial Publication
 Read More

 ​View CSAF
1. EXECUTIVE SUMMARY

CVSS v4 9.3
ATTENTION: Exploitable remotely/low attack complexity
Vendor: Delta Electronics
Equipment: InfraSuite Device Master
Vulnerability: Deserialization of Untrusted Data

2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an unauthenticated attacker to remotely execute arbitrary code.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of InfraSuite Device Master, a real-time device monitoring software, are affected:

InfraSuite Device Master: Versions 1.0.12 and prior

3.2 Vulnerability Overview
3.2.1 DESERIALIZATION OF UNTRUSTED DATA CWE-502
Delta Electronics InfraSuite Device Master versions prior to 1.0.12 are affected by a deserialization vulnerability that targets the Device-Gateway, which could allow deserialization of arbitrary .NET objects prior to authentication, resulting in remote code execution.
CVE-2024-10456 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-2024-10456. A base score of 9.3 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/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
COUNTRIES/AREAS DEPLOYED: Worldwide
COMPANY HEADQUARTERS LOCATION: Taiwan

3.4 RESEARCHER
Simon Humbert of Trend Micro reported this vulnerability to CISA.
4. MITIGATIONS
Delta Electronics states that this issue was fixed by version 1.0.13 released in October 2024. Delta recommends updating to version 1.0.13 or later.
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.
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 29, 2024: Initial Publication 

View CSAF

1. EXECUTIVE SUMMARY

CVSS v4 9.3
ATTENTION: Exploitable remotely/low attack complexity
Vendor: Delta Electronics
Equipment: InfraSuite Device Master
Vulnerability: Deserialization of Untrusted Data

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an unauthenticated attacker to remotely execute arbitrary code.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of InfraSuite Device Master, a real-time device monitoring software, are affected:

InfraSuite Device Master: Versions 1.0.12 and prior

3.2 Vulnerability Overview

3.2.1 DESERIALIZATION OF UNTRUSTED DATA CWE-502

Delta Electronics InfraSuite Device Master versions prior to 1.0.12 are affected by a deserialization vulnerability that targets the Device-Gateway, which could allow deserialization of arbitrary .NET objects prior to authentication, resulting in remote code execution.

CVE-2024-10456 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-2024-10456. A base score of 9.3 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/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
COUNTRIES/AREAS DEPLOYED: Worldwide
COMPANY HEADQUARTERS LOCATION: Taiwan

3.4 RESEARCHER

Simon Humbert of Trend Micro reported this vulnerability to CISA.

4. MITIGATIONS

Delta Electronics states that this issue was fixed by version 1.0.13 released in October 2024. Delta recommends updating to version 1.0.13 or later.

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.

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 29, 2024: Initial Publication
 Read More

 ​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 10.0
ATTENTION: Exploitable remotely/low attack complexity
Vendor: Siemens
Equipment: InterMesh
Vulnerabilities: OS Command Injection, Missing Authentication for Critical Function, Execution with Unnecessary Privileges, Incorrect Privilege Assignment

2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to perform remote code execution, execute commands, write arbitrary files, or execute arbitrary commands.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of Siemens InterMesh Subscriber Devices, a wireless alarm reporting system, are affected:

InterMesh 7177 Hybrid 2.0 Subscriber: All versions prior to V8.2.12
InterMesh 7707 Fire Subscriber: All versions prior to V7.2.12

3.2 Vulnerability Overview
3.2.1 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND (‘OS COMMAND INJECTION’) CWE-78
The web server of affected devices does not sanitize the input parameters in specific GET requests that allow for code execution on operating system level. In combination with other vulnerabilities (CVE-2024-47902, CVE-2024-47903, CVE-2024-47904) this could allow an unauthenticated remote attacker to execute arbitrary code with root privileges.
CVE-2024-47901 has been assigned to this vulnerability. A CVSS v3.1 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2024-47901. A base score of 10.0 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).
3.2.2 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306
The web server of affected devices does not authenticate GET requests that execute specific commands (such as ping) on operating system level.
CVE-2024-47902 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.2 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N).
A CVSS v4 score has also been calculated for CVE-2024-47902. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N).
3.2.3 EXECUTION WITH UNNECESSARY PRIVILEGES CWE-250
The web server of affected devices allows to write arbitrary files to the web server’s DocumentRoot directory.
CVE-2024-47903 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N).
A CVSS v4 score has also been calculated for CVE-2024-47903. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N).
3.2.4 INCORRECT PRIVILEGE ASSIGNMENT CWE-266
The affected devices contain a SUID binary that could allow an authenticated local attacker to execute arbitrary commands with root privileges.
CVE-2024-47904 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
A CVSS v4 score has also been calculated for CVE-2024-47904. A base score of 8.5 has been calculated; the CVSS vector string is (CVSS4.0/AV:L/AC:L/AT:N/PR:L/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: Germany

3.4 RESEARCHER
AES Corporation and Jean Pereira from CYTRES reported these vulnerabilities to Siemens. Siemens reported these vulnerabilities to CISA.
4. MITIGATIONS
Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk:

InterMesh 7177 Hybrid 2.0 Subscriber: Update to V8.2.12 or later version
InterMesh 7707 Fire Subscriber: Update to V7.2.12 or later version
Restrict access to the InterMesh network to trusted systems and persons only

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-333468 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), 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 29, 2024: 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 v4 10.0
ATTENTION: Exploitable remotely/low attack complexity
Vendor: Siemens
Equipment: InterMesh
Vulnerabilities: OS Command Injection, Missing Authentication for Critical Function, Execution with Unnecessary Privileges, Incorrect Privilege Assignment

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to perform remote code execution, execute commands, write arbitrary files, or execute arbitrary commands.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Siemens InterMesh Subscriber Devices, a wireless alarm reporting system, are affected:

InterMesh 7177 Hybrid 2.0 Subscriber: All versions prior to V8.2.12
InterMesh 7707 Fire Subscriber: All versions prior to V7.2.12

3.2 Vulnerability Overview

3.2.1 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND (‘OS COMMAND INJECTION’) CWE-78

The web server of affected devices does not sanitize the input parameters in specific GET requests that allow for code execution on operating system level. In combination with other vulnerabilities (CVE-2024-47902, CVE-2024-47903, CVE-2024-47904) this could allow an unauthenticated remote attacker to execute arbitrary code with root privileges.

CVE-2024-47901 has been assigned to this vulnerability. A CVSS v3.1 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2024-47901. A base score of 10.0 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).

3.2.2 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306

The web server of affected devices does not authenticate GET requests that execute specific commands (such as ping) on operating system level.

CVE-2024-47902 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.2 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N).

A CVSS v4 score has also been calculated for CVE-2024-47902. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N).

3.2.3 EXECUTION WITH UNNECESSARY PRIVILEGES CWE-250

The web server of affected devices allows to write arbitrary files to the web server’s DocumentRoot directory.

CVE-2024-47903 has been assigned to this vulnerability. A CVSS v3.1 base score of 5.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N).

A CVSS v4 score has also been calculated for CVE-2024-47903. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N).

3.2.4 INCORRECT PRIVILEGE ASSIGNMENT CWE-266

The affected devices contain a SUID binary that could allow an authenticated local attacker to execute arbitrary commands with root privileges.

CVE-2024-47904 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2024-47904. A base score of 8.5 has been calculated; the CVSS vector string is (CVSS4.0/AV:L/AC:L/AT:N/PR:L/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: Germany

3.4 RESEARCHER

AES Corporation and Jean Pereira from CYTRES reported these vulnerabilities to Siemens. Siemens reported these vulnerabilities to CISA.

4. MITIGATIONS

Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk:

InterMesh 7177 Hybrid 2.0 Subscriber: Update to V8.2.12 or later version
InterMesh 7707 Fire Subscriber: Update to V7.2.12 or later version
Restrict access to the InterMesh network to trusted systems and persons only

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-333468 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), 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 29, 2024: Initial Publication
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 ​CISA released three Industrial Control Systems (ICS) advisories on October 29, 2024. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

ICSA-24-303-01 Siemens InterMesh Subscriber Devices
ICSA-24-303-02 Solar-Log Base 15
ICSA-24-303-03 Delta Electronics InfraSuite Device Master

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

CISA released three Industrial Control Systems (ICS) advisories on October 29, 2024. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

ICSA-24-303-01 Siemens InterMesh Subscriber Devices
ICSA-24-303-02 Solar-Log Base 15
ICSA-24-303-03 Delta Electronics InfraSuite Device Master

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

 Read More

 ​Cisco released its October 2024 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication to address vulnerabilities in Cisco ASA, FMC, and FTD. A cyber threat actor could exploit some of these vulnerabilities to take control of an affected system.   

CISA encourages users and administrators to review the following advisory and apply the necessary updates:  

Cisco Event Response: October 2024 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication 

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 ​CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation.

CVE-2024-20481 Cisco ASA and FTD Denial-of-Service Vulnerability
CVE-2024-37383 RoundCube Webmail Cross-Site Scripting (XSS) Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.
Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the Known Exploited Vulnerabilities Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.
Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. 

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation.

CVE-2024-20481 Cisco ASA and FTD Denial-of-Service Vulnerability
CVE-2024-37383 RoundCube Webmail Cross-Site Scripting (XSS) Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the Known Exploited Vulnerabilities Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

 Read More