Vulnerability in SIMATIC Drive Controller and S7 CPU Family by Siemens
CVE-2019-10943

7.5HIGH

Key Information:

Vendor
Siemens
Status
Simatic Drive Controller Family
Simatic Et 200sp Open Controller Cpu 1515sp Pc (incl. Siplus Variants)
Simatic Et 200sp Open Controller Cpu 1515sp Pc2 (incl. Siplus Variants)
Simatic S7-1200 Cpu Family (incl. Siplus Variants)
Vendor
CVE Published:
13 August 2019

Summary

A vulnerability exists in various Siemens SIMATIC products that allows an attacker with network access to TCP port 102 to potentially alter the user program on the PLC. This could lead to discrepancies between the running code and the source code stored on the device. An engineer may retrieve a non-representative version of the running user program, compromising the integrity of operations reliant on accurate code execution. Mitigation measures should be implemented to prevent unauthorized network access to affected devices.

Affected Version(s)

SIMATIC Drive Controller family All versions

SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) All versions

SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) All versions < V20.8

References

https://cert-portal.siemens.com/productcert/pdf/ssa-23241...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.