CVE Vulnerability

CVE-2021-37204

A vulnerability has been identified in SIMATIC Drive Controller family (All versions = V2.9.2 < V2.9.4), 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 = V21.9 < V21.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 Ready4Linux (All versions), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions = V4.5.0 < V4.5.2), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions = V2.9.2 < V2.9.4), SIMATIC S7-1500 Software Controller (All versions = V21.9 < V21.9.4), SIMATIC S7-PLCSIM Advanced (All versions = V4.0 = V2.2). An unauthenticated attacker could cause a denial-of-service condition in a PLC when sending specially prepared packet over port 102/tcp. A restart of the affected device is needed to restore normal operations.

7.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-838121.pdf Patch Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:siemens:simatic_s7-1500_software_controller:*:*:*:*:*:*:*:*
Information

Published : 2022-02-09 04:15

Updated : 2022-07-12 10:15

NVD link : CVE-2021-37204

Mitre link : CVE-2021-37204

Products Affected

Siemens

Simatic Et 200sp Open Controller Cpu 1515sp Pc2 Firmware

CWE
NVD-CWE-noinfo