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Industrial Control Systems Cyber Emergency Response TeamICSA-23-348-09

HistoryDec 14, 2023 - 12:00 p.m.

Siemens Simantic S7-1500 CPU family

2023-12-1412:00:00

Industrial Control Systems Cyber Emergency Response Team

www.cisa.gov

siemens

s7-1500

cpu

use after free

vulnerability

cvss 7.5

remote exploitable

ics security advisories

productcert

denial-of-service

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.7 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.1%

JSON

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens’ ProductCERT Security Advisories (CERT Services | Services | Siemens Global).

View CSAF

1. EXECUTIVE SUMMARY

CVSS v3 7.5 *ATTENTION: Exploitable remotely/low attack complexity
Vendor: Siemens
Equipment: Simantic S7-1500 CPU family
Vulnerability: Use After Free

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to cause a denial-of-service condition.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following Siemens products are affected:

SIMATIC Drive Controller CPU 1504D TF (6ES7615-4DF10-0AB0): All versions prior to V3.1.0
SIMATIC Drive Controller CPU 1507D TF (6ES7615-7DF10-0AB0): All versions prior to V3.1.0
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants): All versions
SIMATIC S7-1500 CPU 1510SP F-1 PN (6ES7510-1SJ00-0AB0): All versions
SIMATIC S7-1500 CPU 1510SP F-1 PN (6ES7510-1SJ01-0AB0): All versions
SIMATIC S7-1500 CPU 1510SP F-1 PN (6ES7510-1SK03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1510SP-1 PN (6ES7510-1DJ00-0AB0): All versions
SIMATIC S7-1500 CPU 1510SP-1 PN (6ES7510-1DJ01-0AB0): All versions
SIMATIC S7-1500 CPU 1510SP-1 PN (6ES7510-1DK03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK00-0AB0): All versions
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK01-0AB0): All versions
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK02-0AB0): All versions
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AL03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CK00-0AB0): All versions
SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CK01-0AB0): All versions
SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CL03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK00-0AB0): All versions
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK01-0AB0): All versions
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK02-0AB0): All versions
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FL03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1511T-1 PN (6ES7511-1TK01-0AB0): All versions
SIMATIC S7-1500 CPU 1511T-1 PN (6ES7511-1TL03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1511TF-1 PN (6ES7511-1UK01-0AB0): All versions
SIMATIC S7-1500 CPU 1511TF-1 PN (6ES7511-1UL03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CK00-0AB0): All versions
SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CK01-0AB0): All versions
SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CM03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1512SP F-1 PN (6ES7512-1SK00-0AB0): All versions
SIMATIC S7-1500 CPU 1512SP F-1 PN (6ES7512-1SK01-0AB0): All versions
SIMATIC S7-1500 CPU 1512SP F-1 PN (6ES7512-1SM03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1512SP-1 PN (6ES7512-1DK00-0AB0): All versions
SIMATIC S7-1500 CPU 1512SP-1 PN (6ES7512-1DK01-0AB0): All versions
SIMATIC S7-1500 CPU 1512SP-1 PN (6ES7512-1DM03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL00-0AB0): All versions
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL01-0AB0): All versions
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL02-0AB0): All versions
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AM03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL00-0AB0): All versions
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL01-0AB0): All versions
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL02-0AB0): All versions
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FM03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1513R-1 PN (6ES7513-1RL00-0AB0): All versions
SIMATIC S7-1500 CPU 1513R-1 PN (6ES7513-1RM03-0AB0): All versions
SIMATIC S7-1500 CPU 1514SP F-2 PN (6ES7514-2SN03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1514SP-2 PN (6ES7514-2DN03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1514SPT F-2 PN (6ES7514-2WN03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1514SPT-2 PN (6ES7514-2VN03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AM00-0AB0): All versions
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AM01-0AB0): All versions
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AM02-0AB0): All versions
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AN03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FM00-0AB0): All versions
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FM01-0AB0): All versions
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FM02-0AB0): All versions
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FN03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1515R-2 PN (6ES7515-2RM00-0AB0): All versions
SIMATIC S7-1500 CPU 1515R-2 PN (6ES7515-2RN03-0AB0): All versions
SIMATIC S7-1500 CPU 1515T-2 PN (6ES7515-2TM01-0AB0): All versions
SIMATIC S7-1500 CPU 1515T-2 PN (6ES7515-2TN03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1515TF-2 PN (6ES7515-2UM01-0AB0): All versions
SIMATIC S7-1500 CPU 1515TF-2 PN (6ES7515-2UN03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AN00-0AB0): All versions
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AN01-0AB0): All versions
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AN02-0AB0): All versions
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AP03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FN00-0AB0): All versions
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FN01-0AB0): All versions
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FN02-0AB0): All versions
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FP03-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1516T-3 PN/DP (6ES7516-3TN00-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1516TF-3 PN/DP (6ES7516-3UN00-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1517-3 PN/DP (6ES7517-3AP00-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1517F-3 PN/DP (6ES7517-3FP00-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1517F-3 PN/DP (6ES7517-3FP01-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1517H-3 PN (6ES7517-3HP00-0AB0): All versions
SIMATIC S7-1500 CPU 1517T-3 PN/DP (6ES7517-3TP00-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1517TF-3 PN/DP (6ES7517-3UP00-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1518-4 PN/DP (6ES7518-4AP00-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1518F-4 PN/DP (6ES7518-4FP00-0AB0):All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1518HF-4 PN (6ES7518-4JP00-0AB0): All versions
SIMATIC S7-1500 CPU 1518T-4 PN/DP (6ES7518-4TP00-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU 1518TF-4 PN/DP (6ES7518-4UP00-0AB0): All versions prior to V3.1.0
SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK (6ES7518-4AP00-3AB0): All versions
SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK (6ES7518-4FP00-3AB0): All versions
SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN (6ES7513-2GL00-0AB0): All versions
SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN (6ES7513-2PL00-0AB0): All versions
SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN (6ES7516-2GN00-0AB0): All versions
SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN (6ES7516-2PN00-0AB0): All versions
SIMATIC S7-1500 Software Controller: All versions
SIMATIC S7-PLCSIM Advanced: All versions prior to V6.0
SIPLUS ET 200SP CPU 1510SP F-1 PN (6AG1510-1SJ01-2AB0): All versions
SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL (6AG2510-1SJ01-1AB0): All versions
SIPLUS ET 200SP CPU 1510SP-1 PN (6AG1510-1DJ01-2AB0): All versions
SIPLUS ET 200SP CPU 1510SP-1 PN (6AG1510-1DJ01-7AB0): All versions
SIPLUS ET 200SP CPU 1510SP-1 PN RAIL (6AG2510-1DJ01-1AB0): All versions
SIPLUS ET 200SP CPU 1510SP-1 PN RAIL (6AG2510-1DJ01-4AB0): All versions
SIPLUS ET 200SP CPU 1512SP F-1 PN (6AG1512-1SK00-2AB0): All versions
SIPLUS ET 200SP CPU 1512SP F-1 PN (6AG1512-1SK01-2AB0): All versions
SIPLUS ET 200SP CPU 1512SP F-1 PN (6AG1512-1SK01-7AB0): All versions
SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL (6AG2512-1SK01-1AB0): All versions
SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL (6AG2512-1SK01-4AB0): All versions
SIPLUS ET 200SP CPU 1512SP-1 PN (6AG1512-1DK01-2AB0): All versions
SIPLUS ET 200SP CPU 1512SP-1 PN (6AG1512-1DK01-7AB0): All versions
SIPLUS ET 200SP CPU 1512SP-1 PN RAIL (6AG2512-1DK01-1AB0): All versions
SIPLUS ET 200SP CPU 1512SP-1 PN RAIL (6AG2512-1DK01-4AB0): All versions
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK00-2AB0): All versions
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK01-2AB0): All versions
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK01-7AB0): All versions
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK02-2AB0): All versions
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK02-7AB0): All versions
SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL (6AG2511-1AK01-1AB0): All versions
SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL (6AG2511-1AK02-1AB0): All versions
SIPLUS S7-1500 CPU 1511-1 PN TX RAIL (6AG2511-1AK01-4AB0): All versions
SIPLUS S7-1500 CPU 1511-1 PN TX RAIL (6AG2511-1AK02-4AB0): All versions
SIPLUS S7-1500 CPU 1511F-1 PN (6AG1511-1FK00-2AB0): All versions
SIPLUS S7-1500 CPU 1511F-1 PN (6AG1511-1FK01-2AB0): All versions
SIPLUS S7-1500 CPU 1511F-1 PN (6AG1511-1FK02-2AB0): All versions
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL00-2AB0): All versions
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL01-2AB0): All versions
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL01-7AB0): All versions
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL02-2AB0): All versions
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL02-7AB0): All versions
SIPLUS S7-1500 CPU 1513F-1 PN (6AG1513-1FL00-2AB0): All versions
SIPLUS S7-1500 CPU 1513F-1 PN (6AG1513-1FL01-2AB0): All versions
SIPLUS S7-1500 CPU 1513F-1 PN (6AG1513-1FL02-2AB0): All versions
SIPLUS S7-1500 CPU 1515F-2 PN (6AG1515-2FM01-2AB0): All versions
SIPLUS S7-1500 CPU 1515F-2 PN (6AG1515-2FM02-2AB0): All versions
SIPLUS S7-1500 CPU 1515F-2 PN RAIL (6AG2515-2FM02-4AB0): All versions
SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL (6AG2515-2FM01-2AB0): All versions
SIPLUS S7-1500 CPU 1515R-2 PN (6AG1515-2RM00-7AB0): All versions
SIPLUS S7-1500 CPU 1515R-2 PN TX RAIL (6AG2515-2RM00-4AB0): All versions
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN00-2AB0): All versions
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN00-7AB0): All versions
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN01-2AB0): All versions
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN01-7AB0): All versions
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN02-2AB0): All versions
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN02-7AB0): All versions
SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL (6AG2516-3AN02-4AB0): All versions
SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL (6AG2516-3AN01-4AB0): All versions
SIPLUS S7-1500 CPU 1516F-3 PN/DP (6AG1516-3FN00-2AB0): All versions
SIPLUS S7-1500 CPU 1516F-3 PN/DP (6AG1516-3FN01-2AB0): All versions
SIPLUS S7-1500 CPU 1516F-3 PN/DP (6AG1516-3FN02-2AB0): All versions
SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL (6AG2516-3FN02-2AB0): All versions
SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL (6AG2516-3FN02-4AB0): All versions
SIPLUS S7-1500 CPU 1517H-3 PN (6AG1517-3HP00-4AB0): All versions
SIPLUS S7-1500 CPU 1518-4 PN/DP (6AG1518-4AP00-4AB0): All versions prior to V3.1.0
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0): All versions prior to V3.1.0
SIPLUS S7-1500 CPU 1518F-4 PN/DP (6AG1518-4FP00-4AB0): All versions prior to V3.1.0
SIPLUS S7-1500 CPU 1518HF-4 PN (6AG1518-4JP00-4AB0): All versions

3.2 Vulnerability Overview

3.2.1 USE AFTER FREE CWE-416

Affected devices improperly handle specially crafted packets sent to port 102/tcp. This could allow an attacker to create a denial-of-service condition. A restart is needed to restore normal operations.

CVE-2023-46156 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

3.3 BACKGROUND

CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
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.

For the following devices, Update to V3.1.0 or later version:

SIMATIC Drive Controller CPU 1504D TF (6ES7615-4DF10-0AB0)
SIMATIC Drive Controller CPU 1507D TF (6ES7615-7DF10-0AB0)

For the following devices, limit access to port 102/TCP to trusted users and systems only:

SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
SIMATIC S7-1500 CPU 1510SP F-1 PN (6ES7510-1SJ00-0AB0)
SIMATIC S7-1500 CPU 1510SP F-1 PN (6ES7510-1SJ01-0AB0)
SIMATIC S7-1500 CPU 1510SP-1 PN (6ES7510-1DJ00-0AB0)
SIMATIC S7-1500 CPU 1510SP-1 PN (6ES7510-1DJ01-0AB0)
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK00-0AB0)
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK01-0AB0)
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK02-0AB0)
SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CK00-0AB0)
SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CK01-0AB0)
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK00-0AB0)
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK01-0AB0)
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK02-0AB0)
SIMATIC S7-1500 CPU 1511T-1 PN (6ES7511-1TK01-0AB0)
SIMATIC S7-1500 CPU 1511TF-1 PN (6ES7511-1UK01-0AB0)
SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CK00-0AB0)
SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CK01-0AB0)
SIMATIC S7-1500 CPU 1512SP F-1 PN (6ES7512-1SK00-0AB0)
SIMATIC S7-1500 CPU 1512SP F-1 PN (6ES7512-1SK01-0AB0)
SIMATIC S7-1500 CPU 1512SP-1 PN (6ES7512-1DK00-0AB0)
SIMATIC S7-1500 CPU 1512SP-1 PN (6ES7512-1DK01-0AB0)
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL00-0AB0)
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL01-0AB0)
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL02-0AB0)
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL00-0AB0)
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL01-0AB0)
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL02-0AB0)
SIMATIC S7-1500 CPU 1513R-1 PN (6ES7513-1RL00-0AB0)
SIMATIC S7-1500 CPU 1513R-1 PN (6ES7513-1RM03-0AB0)
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AM00-0AB0)
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AM01-0AB0)
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AM02-0AB0)
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FM00-0AB0)
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FM01-0AB0)
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FM02-0AB0)
SIMATIC S7-1500 CPU 1515R-2 PN (6ES7515-2RM00-0AB0)
SIMATIC S7-1500 CPU 1515R-2 PN (6ES7515-2RN03-0AB0)
SIMATIC S7-1500 CPU 1515T-2 PN (6ES7515-2TM01-0AB0)
SIMATIC S7-1500 CPU 1515TF-2 PN (6ES7515-2UM01-0AB0)
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AN00-0AB0)
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AN01-0AB0)
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AN02-0AB0)
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FN00-0AB0)
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FN01-0AB0)
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FN02-0AB0)
SIMATIC S7-1500 CPU 1517H-3 PN (6ES7517-3HP00-0AB0)
SIMATIC S7-1500 CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK (6ES7518-4FP00-3AB0)
SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN (6ES7513-2GL00-0AB0)
SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN (6ES7513-2PL00-0AB0)
SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN (6ES7516-2GN00-0AB0)
SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN (6ES7516-2PN00-0AB0)
SIMATIC S7-1500 Software Controller
SIPLUS ET 200SP CPU 1510SP F-1 PN (6AG1510-1SJ01-2AB0)
SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL (6AG2510-1SJ01-1AB0)
SIPLUS ET 200SP CPU 1510SP-1 PN (6AG1510-1DJ01-2AB0)
SIPLUS ET 200SP CPU 1510SP-1 PN (6AG1510-1DJ01-7AB0)
SIPLUS ET 200SP CPU 1510SP-1 PN RAIL (6AG2510-1DJ01-1AB0)
SIPLUS ET 200SP CPU 1510SP-1 PN RAIL (6AG2510-1DJ01-4AB0)
SIPLUS ET 200SP CPU 1512SP F-1 PN (6AG1512-1SK00-2AB0)
SIPLUS ET 200SP CPU 1512SP F-1 PN (6AG1512-1SK01-2AB0)
SIPLUS ET 200SP CPU 1512SP F-1 PN (6AG1512-1SK01-7AB0)
SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL (6AG2512-1SK01-1AB0)
SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL (6AG2512-1SK01-4AB0)
SIPLUS ET 200SP CPU 1512SP-1 PN (6AG1512-1DK01-2AB0)
SIPLUS ET 200SP CPU 1512SP-1 PN (6AG1512-1DK01-7AB0)
SIPLUS ET 200SP CPU 1512SP-1 PN RAIL (6AG2512-1DK01-1AB0)
SIPLUS ET 200SP CPU 1512SP-1 PN RAIL (6AG2512-1DK01-4AB0)
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK00-2AB0)
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK01-2AB0)
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK01-7AB0)
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK02-2AB0)
SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK02-7AB0)
SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL (6AG2511-1AK01-1AB0)
SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL (6AG2511-1AK02-1AB0)
SIPLUS S7-1500 CPU 1511-1 PN TX RAIL (6AG2511-1AK01-4AB0)
SIPLUS S7-1500 CPU 1511-1 PN TX RAIL (6AG2511-1AK02-4AB0)
SIPLUS S7-1500 CPU 1511F-1 PN (6AG1511-1FK00-2AB0)
SIPLUS S7-1500 CPU 1511F-1 PN (6AG1511-1FK01-2AB0)
SIPLUS S7-1500 CPU 1511F-1 PN (6AG1511-1FK02-2AB0)
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL00-2AB0)
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL01-2AB0)
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL01-7AB0)
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL02-2AB0)
SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL02-7AB0)
SIPLUS S7-1500 CPU 1513F-1 PN (6AG1513-1FL00-2AB0)
SIPLUS S7-1500 CPU 1513F-1 PN (6AG1513-1FL01-2AB0)
SIPLUS S7-1500 CPU 1513F-1 PN (6AG1513-1FL02-2AB0)
SIPLUS S7-1500 CPU 1515F-2 PN (6AG1515-2FM01-2AB0)
SIPLUS S7-1500 CPU 1515F-2 PN (6AG1515-2FM02-2AB0)
SIPLUS S7-1500 CPU 1515F-2 PN RAIL (6AG2515-2FM02-4AB0)
SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL (6AG2515-2FM01-2AB0)
SIPLUS S7-1500 CPU 1515R-2 PN (6AG1515-2RM00-7AB0)
SIPLUS S7-1500 CPU 1515R-2 PN TX RAIL (6AG2515-2RM00-4AB0)
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN00-2AB0)
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN00-7AB0)
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN01-2AB0)
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN01-7AB0)
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN02-2AB0)
SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN02-7AB0)
SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL (6AG2516-3AN02-4AB0)
SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL (6AG2516-3AN01-4AB0)
SIPLUS S7-1500 CPU 1516F-3 PN/DP (6AG1516-3FN00-2AB0)
SIPLUS S7-1500 CPU 1516F-3 PN/DP (6AG1516-3FN01-2AB0)
SIPLUS S7-1500 CPU 1516F-3 PN/DP (6AG1516-3FN02-2AB0)
SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL (6AG2516-3FN02-2AB0)
SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL (6AG2516-3FN02-4AB0)
SIPLUS S7-1500 CPU 1517H-3 PN (6AG1517-3HP00-4AB0)
SIPLUS S7-1500 CPU 1518HF-4 PN (6AG1518-4JP00-4AB0)

For the following devices, Update to V3.1.0 or later version:

SIMATIC S7-1500 CPU 1510SP F-1 PN (6ES7510-1SK03-0AB0)
SIMATIC S7-1500 CPU 1510SP-1 PN (6ES7510-1DK03-0AB0)
SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AL03-0AB0)
SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CL03-0AB0)
SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FL03-0AB0)
SIMATIC S7-1500 CPU 1511T-1 PN (6ES7511-1TL03-0AB0)
SIMATIC S7-1500 CPU 1511TF-1 PN (6ES7511-1UL03-0AB0)
SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CM03-0AB0)
SIMATIC S7-1500 CPU 1512SP F-1 PN (6ES7512-1SM03-0AB0)
SIMATIC S7-1500 CPU 1512SP-1 PN (6ES7512-1DM03-0AB0)
SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AM03-0AB0)
SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FM03-0AB0)
SIMATIC S7-1500 CPU 1514SP F-2 PN (6ES7514-2SN03-0AB0)
SIMATIC S7-1500 CPU 1514SP-2 PN (6ES7514-2DN03-0AB0)
SIMATIC S7-1500 CPU 1514SPT F-2 PN (6ES7514-2WN03-0AB0)
SIMATIC S7-1500 CPU 1514SPT-2 PN (6ES7514-2VN03-0AB0)
SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AN03-0AB0)
SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FN03-0AB0)
SIMATIC S7-1500 CPU 1515T-2 PN (6ES7515-2TN03-0AB0)
SIMATIC S7-1500 CPU 1515TF-2 PN (6ES7515-2UN03-0AB0)
SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AP03-0AB0)
SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FP03-0AB0)
SIMATIC S7-1500 CPU 1516T-3 PN/DP (6ES7516-3TN00-0AB0)
SIMATIC S7-1500 CPU 1516TF-3 PN/DP (6ES7516-3UN00-0AB0)
SIMATIC S7-1500 CPU 1517-3 PN/DP (6ES7517-3AP00-0AB0)
SIMATIC S7-1500 CPU 1517F-3 PN/DP (6ES7517-3FP00-0AB0)
SIMATIC S7-1500 CPU 1517F-3 PN/DP (6ES7517-3FP01-0AB0)
SIMATIC S7-1500 CPU 1517T-3 PN/DP (6ES7517-3TP00-0AB0)
SIMATIC S7-1500 CPU 1517TF-3 PN/DP (6ES7517-3UP00-0AB0)
SIMATIC S7-1500 CPU 1518-4 PN/DP (6ES7518-4AP00-0AB0)
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
SIMATIC S7-1500 CPU 1518F-4 PN/DP (6ES7518-4FP00-0AB0)
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)
SIMATIC S7-1500 CPU 1518T-4 PN/DP (6ES7518-4TP00-0AB0)
SIMATIC S7-1500 CPU 1518TF-4 PN/DP (6ES7518-4UP00-0AB0)
SIPLUS S7-1500 CPU 1518-4 PN/DP (6AG1518-4AP00-4AB0)
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)
SIPLUS S7-1500 CPU 1518F-4 PN/DP (6AG1518-4FP00-4AB0)

For the following devices, Update to V6.0 or later version:

SIMATIC S7-PLCSIM Advanced

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-592380 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

December 14, 2023: Initial Publication

References

web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-46156

cert-portal.siemens.com/productcert/csaf/ssa-592380.json

cert-portal.siemens.com/productcert/html/ssa-592380.html

cwe.mitre.org/data/definitions/416.html

github.com/cisagov/CSAF

new.siemens.com/global/en/products/services/cert.html#SecurityPublications

public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138

support.industry.siemens.com/cs/ww/en/view/109478459/

support.industry.siemens.com/cs/ww/en/view/109773914/

support.industry.siemens.com/cs/ww/en/view/109821388

twitter.com/CISAgov

twitter.com/intent/tweet?text=Siemens%20Simantic%20S7-1500%20CPU%20family+https://www.cisa.gov/news-events/ics-advisories/icsa-23-348-09

us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf

www.cisa.gov/resources-tools/resources/ics-recommended-practices

www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf

www.cisa.gov/topics/industrial-control-systems

www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01

www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B

www.dhs.gov

www.dhs.gov/foia

www.dhs.gov/performance-financial-reports

www.facebook.com/CISA

www.facebook.com/sharer/sharer.php?u=https://www.cisa.gov/news-events/ics-advisories/icsa-23-348-09&title=Siemens%20Simantic%20S7-1500%20CPU%20family

www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

www.instagram.com/cisagov

www.linkedin.com/company/cybersecurity-and-infrastructure-security-agency

www.linkedin.com/sharing/share-offsite/?url=https://www.cisa.gov/news-events/ics-advisories/icsa-23-348-09

www.oig.dhs.gov/

www.siemens.com/cert/operational-guidelines-industrial-security

www.siemens.com/industrialsecurity

www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-23-348-09

www.usa.gov/

www.whitehouse.gov/

www.youtube.com/@cisagov

mailto:?subject=Siemens%20Simantic%20S7-1500%20CPU%20family&body=www.cisa.gov/news-events/ics-advisories/icsa-23-348-09

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.7 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.1%

JSON

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