Denial of Service Vulnerability in Profinet-IO Stack by Siemens
CVE-2019-13946

7.5HIGH

Key Information:

Vendor
Siemens
Status
Development/evaluation Kits For Profinet Io: Dk Standard Ethernet Controller
Development/evaluation Kits For Profinet Io: Ek-ertec 200
Development/evaluation Kits For Profinet Io: Ek-ertec 200p
Profinet Driver For Controller
Vendor
CVE Published:
11 February 2020

Summary

The Profinet-IO stack versions prior to V06.00 are susceptible to a denial of service vulnerability stemming from inadequate limitations on internal resource allocation. When multiple legitimate diagnostic package requests are sent to the DCE-RPC interface, an attacker with network access can exploit this issue to deplete memory resources, potentially leading to the unavailability of the device. The exploitation of this vulnerability does not require system privileges or user interaction, making it particularly concerning for network management.

Affected Version(s)

Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet Controller 0

Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200 All Versions < V4.5

Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200P All Versions < V4.6

References

https://cert-portal.siemens.com/productcert/pdf/ssa-78007...
https://cert-portal.siemens.com/productcert/html/ssa-7800...

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.