Siemens SENTRON 7KT PAC1260 Data Manager

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).

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1. EXECUTIVE SUMMARY

• CVSS v4 10.0
• ATTENTION: Exploitable remotely/low attack complexity
• Vendor: Siemens
• Equipment: SENTRON 7KT PAC1260 Data Manager
• Vulnerabilities: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), Missing Authentication for Critical Function, Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), Use of Hard-coded Credentials, Cross-Site Request Forgery (CSRF), Unverified Password Change

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an authenticated remote attacker to execute arbitrary code with root privileges or allow an unauthenticated remote attacker to read or clear the log files on the device, reset the device, set the date and time, access arbitrary files on the device with root privileges, or enable remote access to the device.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Siemens reports that the following products are affected:

• SENTRON 7KT PAC1260 Data Manager: All versions

3.2 VULNERABILITY OVERVIEW

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

The web interface of affected devices does not sanitize the input parameters in specific GET requests. This could allow an authenticated remote attacker to execute arbitrary code with root privileges.

CVE-2024-41788 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-2024-41788. 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).

3.2.2 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND ('OS COMMAND INJECTION') CWE-78

The web interface of affected devices does not sanitize the language parameter in specific POST requests. This could allow an authenticated remote attacker to execute arbitrary code with root privileges.

CVE-2024-41789 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-2024-41789. 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).

3.2.3 IMPROPER NEUTRALIZATION OF SPECIAL ELEMENTS USED IN AN OS COMMAND ('OS COMMAND INJECTION') CWE-78

The web interface of affected devices does not sanitize the region parameter in specific POST requests. This could allow an authenticated remote attacker to execute arbitrary code with root privileges.

CVE-2024-41790 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-2024-41790. 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).

3.2.4 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306

The web interface of affected devices does not authenticate report creation requests. This could allow an unauthenticated remote attacker to read or clear the log files on the device, reset the device or set the date and time.

CVE-2024-41791 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).

A CVSS v4 score has also been calculated for  CVE-2024-41791. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N).

3.2.5 IMPROPER LIMITATION OF A PATHNAME TO A RESTRICTED DIRECTORY ('PATH TRAVERSAL') CWE-22

The web interface of affected devices contains a path traversal vulnerability. This could allow an unauthenticated attacker to access arbitrary files on the device with root privileges.

CVE-2024-41792 has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for  CVE-2024-41792. A base score of 9.2 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N).

3.2.6 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306

The web interface of affected devices provides an endpoint that allows to enable the SSH service without authentication. This could allow an unauthenticated remote attacker to enable remote access to the device via SSH.

CVE-2024-41793 has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N).

A CVSS v4 score has also been calculated for  CVE-2024-41793. A base score of 7.7 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:H/SA:N).

3.2.7 USE OF HARD-CODED CREDENTIALS CWE-798

Affected devices contain hardcoded credentials for remote access to the device operating system with root privileges. This could allow unauthenticated remote attackers to gain full access to a device, if they are in possession of these credentials and if the SSH service is enabled (e.g., by exploitation of CVE-2024-41793).

CVE-2024-41794 has been assigned to this vulnerability. A CVSS v3 base score of 10.0 has been calculated; the CVSS vector string is (CVSS:3.1/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-2024-41794. A base score of 10.0 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H).

3.2.8 CROSS-SITE REQUEST FORGERY (CSRF) CWE-352

The web interface of affected devices is vulnerable to cross-site request forgery (CSRF) attacks. This could allow an unauthenticated attacker to change arbitrary device settings by tricking a legitimate device administrator to click on a malicious link.

CVE-2024-41795 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:N/UI:R/S:U/C:N/I:H/A:N).

A CVSS v4 score has also been calculated for  CVE-2024-41795. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N).

3.2.9 UNVERIFIED PASSWORD CHANGE CWE-620

The web interface of affected devices allows changing the login password without knowing the current password. In combination with a prepared CSRF attack (CVE-2024-41795) an unauthenticated attacker could be able to set the password to an attacker-controlled value.

CVE-2024-41796 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:N/UI:R/S:U/C:N/I:H/A:N).

A CVSS v4 score has also been calculated for  CVE-2024-41796. A base score of 6.9 has been calculated; the CVSS vector string is (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N).

3.3 BACKGROUND

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

3.4 RESEARCHER

Siemens Energy reported these vulnerabilities to Siemens.

4. MITIGATIONS

To fix the vulnerabilities, Siemens recommends users replace vulnerable devices with the new SENTRON 7KT PAC1261 Data Manager and update it to the latest available firmware version.

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

• (CVE-2024-41795, CVE-2024-41796) SENTRON 7KT PAC1260 Data Manager: Do not access links from untrusted sources while logged in at affected devices.

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-187636 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

• April 10, 2025: Initial Republication of Siemens SSA-187636

• Siemens