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 8.7
ATTENTION: Exploitable remotely/low attack complexity
Vendor: Siemens
Equipment: RUGGEDCOM
Vulnerabilities: Exposure of Sensitive Information to an Unauthorized Actor, Incorrect Privilege Assignment, Exposure of Sensitive System Information to an Unauthorized Control Sphere

2. RISK EVALUATION

Successful exploitation could allow an attacker to obtain user credentials, the MACSEC key, or create a remote shell to the affected system.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following products of Siemens, are affected:

RUGGEDCOM i800: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM i800NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM i801: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM i801NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM i802: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM i802NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM i803: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM i803NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM M969: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM M969NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM M2100: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM M2100NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM M2200: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM M2200NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RMC30: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RMC30NC: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RMC8388 V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RMC8388 V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RMC8388NC V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RMC8388NC V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RP110: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RP110NC: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS400: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS400NC: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS401: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS401NC: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS416: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS416NC: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS416NCv2 V4.X: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS416NCv2 V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278, CVE-2024-39675)
RUGGEDCOM RS416P: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS416PNC: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS416PNCv2 V4.X: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS416PNCv2 V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278, CVE-2024-39675)
RUGGEDCOM RS416Pv2 V4.X: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS416Pv2 V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278, CVE-2024-39675)
RUGGEDCOM RS416v2 V4.X: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS416v2 V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278, CVE-2024-39675)
RUGGEDCOM RS900: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900 (32M) V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900 (32M) V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RS900G: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900G (32M) V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900G (32M) V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RS900GNC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900GNC(32M) V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900GNC(32M) V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RS900GP: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900GPNC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900L: All versions (CVE-2023-52237)
RUGGEDCOM RS900LNC: All versions (CVE-2023-52237)
RUGGEDCOM RS900M-GETS-C01: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900M-GETS-XX: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900M-STND-C01: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900M-STND-XX: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900MNC-GETS-C01: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900MNC-GETS-XX: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900MNC-STND-XX: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900MNC-STND-XX-C01: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900NC(32M) V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS900NC(32M) V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RS900W: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS910: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS910L: All versions (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS910LNC: All versions (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS910NC: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS910W: Versions prior to V4.3.10 (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS920L: All versions (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS920LNC: All versions (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS920W: All versions (CVE-2023-52237, CVE-2024-39675)
RUGGEDCOM RS930L: All versions (CVE-2023-52237)
RUGGEDCOM RS930LNC: All versions (CVE-2023-52237)
RUGGEDCOM RS930W: All versions (CVE-2023-52237)
RUGGEDCOM RS940G: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS940GNC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS969: All versions (CVE-2023-52237)
RUGGEDCOM RS969NC: All versions (CVE-2023-52237)
RUGGEDCOM RS1600: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS1600F: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS1600FNC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS1600NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS1600T: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS1600TNC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS8000: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS8000A: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS8000ANC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS8000H: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS8000HNC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS8000NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS8000T: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RS8000TNC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG907R: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG908C: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG909R: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG910C: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG920P V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG920P V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG920PNC V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG920PNC V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG2100: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2100 (32M) V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2100 (32M) V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG2100NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2100NC(32M) V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2100NC(32M) V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG2100P: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2100PNC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2200: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2200NC: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2288 V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2288 V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG2288NC V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2288NC V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG2300 V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2300 V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG2300NC V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2300NC V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG2300P V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2300P V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG2300PNC V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2300PNC V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG2488 V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2488 V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSG2488NC V4.X: Versions prior to V4.3.10 (CVE-2023-52237)
RUGGEDCOM RSG2488NC V5.X: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSL910: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RSL910NC: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RST916C: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RST916P: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2024-38278)
RUGGEDCOM RST2228: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2023-52238, CVE-2024-38278)
RUGGEDCOM RST2228P: Versions prior to V5.9.0 (CVE-2023-52237, CVE-2023-52238, CVE-2024-38278)

3.2 Vulnerability Overview

3.2.1 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200

The web server of the affected devices allow a low privileged user to access hashes and password salts of all system’s users, including admin users. An attacker could use the obtained information to brute force the passwords offline.

CVE-2023-52237 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2023-52237. A base score of 7.7 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.2.2 EXPOSURE OF SENSITIVE INFORMATION TO AN UNAUTHORIZED ACTOR CWE-200

The web server of the affected systems leaks the MACSEC key in clear text to a logged in user. An attacker with the credentials of a low privileged user could retrieve the MACSEC key and access (decrypt) the ethernet frames sent by authorized recipients.

CVE-2023-52238 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:L/I:N/A:N).

A CVSS v4 score has also been calculated for CVE-2023-52238. A base score of 2.3 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N).

3.2.3 INCORRECT PRIVILEGE ASSIGNMENT CWE-266

The affected products with IP forwarding enabled wrongly make available certain remote services in non-managed VLANs, even if these services are not intentionally activated. An attacker could leverage this vulnerability to create a remote shell to the affected system.

CVE-2024-38278 has been assigned to this vulnerability. A CVSS v3 base score of 6.6 has been calculated; the CVSS vector string is (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H).

A CVSS v4 score has also been calculated for CVE-2024-38278. A base score of 7.5 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N).

3.2.4 EXPOSURE OF SENSITIVE SYSTEM INFORMATION TO AN UNAUTHORIZED CONTROL SPHERE CWE-497

In some configurations, the affected products wrongly enable the Modbus service in non-managed VLANS. Only serial devices are affected by this vulnerability.

CVE-2024-39675 has been assigned to this vulnerability. A CVSS v3 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-2024-38278. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS4.0/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: Energy, Communications
COUNTRIES/AREAS DEPLOYED: Worldwide
COMPANY HEADQUARTERS LOCATION: Germany

3.4 RESEARCHER

Stephen Craven reported these vulnerabilities to Siemens.
Thomas Riedmaier from Siemens Energy reported these vulnerabilities to Siemens.

4. MITIGATIONS

Siemens has prepared fixed versions and recommends countermeasures for products where fixes are not available.

(CVE-2024-39675) RUGGEDCOM RMC30, RUGGEDCOM RP110, RUGGEDCOM RS400, RUGGEDCOM RS401, RUGGEDCOM RS416, RUGGEDCOM RS416Pv2 V4.X, RUGGEDCOM RS416v2 V4.X, RUGGEDCOM RS910, RUGGEDCOM RS910W, RUGGEDCOM RMC30NC, RUGGEDCOM RP110NC, RUGGEDCOM RS400NC, RUGGEDCOM RS401NC, RUGGEDCOM RS416NC, RUGGEDCOM RS416NCv2 V4.X, RUGGEDCOM RS416P, RUGGEDCOM RS416PNC, RUGGEDCOM RS416PNCv2 V4.X, RUGGEDCOM RS910NC: Update to V4.3.10 or later version
(CVE-2024-39675) RUGGEDCOM RS416Pv2 V5.X, RUGGEDCOM RS416v2 V5.X, RUGGEDCOM RS416NCv2 V5.X, RUGGEDCOM RS416PNCv2 V5.X: Update to V5.9.0 or later version
(CVE-2023-52237) RUGGEDCOM i800, RUGGEDCOM i801, RUGGEDCOM i802, RUGGEDCOM i803, RUGGEDCOM M2100, RUGGEDCOM M2200, RUGGEDCOM M969, RUGGEDCOM RMC30, RUGGEDCOM RMC8388 V4.X, RUGGEDCOM RP110, RUGGEDCOM RS1600, RUGGEDCOM RS1600F, RUGGEDCOM RS1600T, RUGGEDCOM RS400, RUGGEDCOM RS401, RUGGEDCOM RS416, RUGGEDCOM RS416Pv2 V4.X, RUGGEDCOM RS416v2 V4.X, RUGGEDCOM RS8000, RUGGEDCOM RS8000A, RUGGEDCOM RS8000H, RUGGEDCOM RS8000T, RUGGEDCOM RS900, RUGGEDCOM RS900 (32M) V4.X, RUGGEDCOM RS900G, RUGGEDCOM RS900G (32M) V4.X, RUGGEDCOM RS900GP, RUGGEDCOM RS900W, RUGGEDCOM RS910, RUGGEDCOM RS910W, RUGGEDCOM RS940G, RUGGEDCOM RSG2100, RUGGEDCOM RSG2100 (32M) V4.X, RUGGEDCOM RSG2100P, RUGGEDCOM RSG2200, RUGGEDCOM RSG2288 V4.X, RUGGEDCOM RSG2300 V4.X, RUGGEDCOM RSG2300P V4.X, RUGGEDCOM RSG2488 V4.X, RUGGEDCOM RSG920P V4.X, RUGGEDCOM i800NC, RUGGEDCOM i801NC, RUGGEDCOM i802NC, RUGGEDCOM i803NC, RUGGEDCOM M2100NC, RUGGEDCOM M2200NC, RUGGEDCOM M969NC, RUGGEDCOM RMC30NC, RUGGEDCOM RMC8388NC V4.X, RUGGEDCOM RP110NC, RUGGEDCOM RS1600FNC, RUGGEDCOM RS1600NC, RUGGEDCOM RS1600TNC, RUGGEDCOM RS400NC, RUGGEDCOM RS401NC, RUGGEDCOM RS416NC, RUGGEDCOM RS416NCv2 V4.X, RUGGEDCOM RS416P, RUGGEDCOM RS416PNC, RUGGEDCOM RS416PNCv2 V4.X, RUGGEDCOM RS8000ANC, RUGGEDCOM RS8000HNC, RUGGEDCOM RS8000NC, RUGGEDCOM RS8000TNC, RUGGEDCOM RS900GNC, RUGGEDCOM RS900GNC(32M) V4.X, RUGGEDCOM RS900GPNC, RUGGEDCOM RS900M-GETS-C01, RUGGEDCOM RS900M-GETS-XX, RUGGEDCOM RS900M-STND-C01, RUGGEDCOM RS900M-STND-XX, RUGGEDCOM RS900MNC-GETS-C01, RUGGEDCOM RS900MNC-GETS-XX, RUGGEDCOM RS900MNC-STND-XX, RUGGEDCOM RS900MNC-STND-XX-C01, RUGGEDCOM RS900NC, RUGGEDCOM RS900NC(32M) V4.X, RUGGEDCOM RS910NC, RUGGEDCOM RS940GNC, RUGGEDCOM RSG2100NC, RUGGEDCOM RSG2100NC(32M) V4.X, RUGGEDCOM RSG2100PNC, RUGGEDCOM RSG2200NC, RUGGEDCOM RSG2288NC V4.X, RUGGEDCOM RSG2300NC V4.X, RUGGEDCOM RSG2300PNC V4.X, RUGGEDCOM RSG2488NC V4.X, RUGGEDCOM RSG920PNC V4.X: Update to V4.3.10 or later version
(CVE-2023-52237, CVE-2024-38278) RUGGEDCOM RMC8388 V5.X, RUGGEDCOM RS416Pv2 V5.X, RUGGEDCOM RS416v2 V5.X, RUGGEDCOM RS900 (32M) V5.X, RUGGEDCOM RS900G (32M) V5.X, RUGGEDCOM RSG2100 (32M) V5.X, RUGGEDCOM RSG2288 V5.X, RUGGEDCOM RSG2300 V5.X, RUGGEDCOM RSG2300P V5.X, RUGGEDCOM RSG2488 V5.X, RUGGEDCOM RSG907R, RUGGEDCOM RSG908C, RUGGEDCOM RSG909R, RUGGEDCOM RSG910C, RUGGEDCOM RSG920P V5.X, RUGGEDCOM RSL910, RUGGEDCOM RST2228, RUGGEDCOM RST2228P, RUGGEDCOM RST916C, RUGGEDCOM RST916P, RUGGEDCOM RMC8388NC V5.X, RUGGEDCOM RS416NCv2 V5.X, RUGGEDCOM RS416PNCv2 V5.X, RUGGEDCOM RS900GNC(32M) V5.X, RUGGEDCOM RS900NC(32M) V5.X, RUGGEDCOM RSG2100NC(32M) V5.X, RUGGEDCOM RSG2288NC V5.X, RUGGEDCOM RSG2300NC V5.X, RUGGEDCOM RSG2300PNC V5.X, RUGGEDCOM RSG2488NC V5.X, RUGGEDCOM RSG920PNC V5.X, RUGGEDCOM RSL910NC: Update to V5.9.0 or later version
(CVE-2023-52238) RUGGEDCOM RST2228, RUGGEDCOM RST2228P: Update to V5.9.0 or later version
(CVE-2024-39675) RUGGEDCOM RS910L, RUGGEDCOM RS910LNC, RUGGEDCOM RS920L, RUGGEDCOM RS920LNC, RUGGEDCOM RS920W: Currently no fix is planned
(CVE-2023-52237) RUGGEDCOM RS900L, RUGGEDCOM RS900LNC, RUGGEDCOM RS910L, RUGGEDCOM RS910LNC, RUGGEDCOM RS920L, RUGGEDCOM RS920LNC, RUGGEDCOM RS920W, RUGGEDCOM RS930L, RUGGEDCOM RS930LNC, RUGGEDCOM RS930W, RUGGEDCOM RS969, RUGGEDCOM RS969NC: Currently no fix is planned

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

(CVE-2023-52237, CVE-2023-52238) Disable the webserver if not required on the affected systems. Restrict the access to Port 80/tcp and 443/tcp to trusted IP address only
(CVE-2024-38278) RUGGEDCOM RMC8388 V5.X, RUGGEDCOM RMC8388NC V5.X, RUGGEDCOM RS416NCv2 V5.X, RUGGEDCOM RS416PNCv2 V5.X, RUGGEDCOM RS416Pv2 V5.X, RUGGEDCOM RS416v2 V5.X, RUGGEDCOM RS900 (32M) V5.X, RUGGEDCOM RS900G (32M) V5.X, RUGGEDCOM RS900GNC(32M) V5.X, RUGGEDCOM RS900NC(32M) V5.X, RUGGEDCOM RSG2100 (32M) V5.X, RUGGEDCOM RSG2100NC(32M) V5.X, RUGGEDCOM RSG2288 V5.X, RUGGEDCOM RSG2288NC V5.X, RUGGEDCOM RSG2300 V5.X, RUGGEDCOM RSG2300NC V5.X, RUGGEDCOM RSG2300P V5.X, RUGGEDCOM RSG2300PNC V5.X, RUGGEDCOM RSG2488 V5.X, RUGGEDCOM RSG2488NC V5.X, RUGGEDCOM RSG907R, RUGGEDCOM RSG908C, RUGGEDCOM RSG909R, RUGGEDCOM RSG910C, RUGGEDCOM RSG920P V5.X, RUGGEDCOM RSG920PNC V5.X, RUGGEDCOM RSL910, RUGGEDCOM RSL910NC, RUGGEDCOM RST2228, RUGGEDCOM RST2228P, RUGGEDCOM RST916C, RUGGEDCOM RST916P: For CVE-2024-38278: Disable the IP Forwarding if not required on the affected system. Also note, the IP forwarding is disabled by default
(CVE-2024-39675) RUGGEDCOM RMC30, RUGGEDCOM RMC30NC, RUGGEDCOM RP110, RUGGEDCOM RP110NC, RUGGEDCOM RS400, RUGGEDCOM RS400NC, RUGGEDCOM RS401, RUGGEDCOM RS401NC, RUGGEDCOM RS416, RUGGEDCOM RS416NC, RUGGEDCOM RS416NCv2 V4.X, RUGGEDCOM RS416NCv2 V5.X, RUGGEDCOM RS416P, RUGGEDCOM RS416PNC, RUGGEDCOM RS416PNCv2 V4.X, RUGGEDCOM RS416PNCv2 V5.X, RUGGEDCOM RS416Pv2 V4.X, RUGGEDCOM RS416Pv2 V5.X, RUGGEDCOM RS416v2 V4.X, RUGGEDCOM RS416v2 V5.X, RUGGEDCOM RS910, RUGGEDCOM RS910L, RUGGEDCOM RS910LNC, RUGGEDCOM RS910NC, RUGGEDCOM RS910W, RUGGEDCOM RS920L, RUGGEDCOM RS920LNC, RUGGEDCOM RS920W: Disable the Modbus Server if not required on the affected system. Restrict the access to Port 502/tcp to trusted IP address only. Also note, Modbus is disabled by default

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-170375 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.

5. UPDATE HISTORY

July 11, 2024: Initial Publication