Home/CVE/A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All vers
CVE

CVE-2019-19281

A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All vers

A vulnerability has been identified in SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2.5 and < V20.8), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.5 and < V2.8), SIMATIC S7-1500 Software Controller (All versions >= V2.5 and < V20.8). Affected devices contain a vulnerability that allows an unauthenticated attacker to trigger a Denial-of-Service condition.

The vulnerability can be triggered if specially crafted UDP packets are sent to the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction.

An attacker could use the vulnerability to compromise the device availability.

HIGH · CVSS 7.5 EPSS 0.00629
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

14
siemens simatic et 200sp open controller cpu 1515sp pc2 firmware>= 2.5 and < 20.8
siemens simatic s7-1500 cpu 1511-1 pn firmware>= 2.5 and < 2.8
siemens simatic s7-1500 cpu 1513-1 pn firmware>= 2.5 and < 2.8
siemens simatic s7-1500 cpu 1515-2 pn firmware>= 2.5 and < 2.8
siemens simatic s7-1500 cpu 1516-3 pn firmware>= 2.5 and < 2.8
siemens simatic s7-1500 cpu 1516-3 dp firmware>= 2.5 and < 2.8
siemens simatic s7-1500 cpu 1517-3 pn firmware>= 2.5 and < 2.8
siemens simatic s7-1500 cpu 1517-3 dp firmware>= 2.5 and < 2.8
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · productcert@siemens.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Mar 2020 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2020-icsa-20-042-11
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert-portal.siemens.com/productcert/pdf/ssa-750824.pdfVendor Advisory
https://www.us-cert.gov/ics/advisories/icsa-20-042-11
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