Vulnerability in Siemens SIMATIC S7-300 and S7-400 CPU Families
CVE-2016-9158

7.5HIGH

Key Information:

Vendor
Siemens
Status
Simatic S7-300 Cpu Family
Simatic S7-300 Cpu Family (incl. Related Et200 Cpus And Siplus Variants)
Simatic S7-400 Pn/dp V6 And Below Cpu Family (incl. Siplus Variants)
Simatic S7-400 Pn/dp V7 Cpu Family (incl. Siplus Variants)
Vendor
CVE Published:
17 December 2016

Summary

A vulnerability has been found in the Siemens SIMATIC S7-300 and S7-400 CPU families, affecting all versions. This issue arises when specially crafted packets are sent to port 80/tcp, potentially causing the affected devices to enter a defect mode. Recovery of the system is only possible through a cold restart, leading to significant downtime and potential operational disruptions.

Affected Version(s)

SIMATIC S7-300 CPU family All versions

SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) All versions

SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) All versions

References

http://www.securityfocus.com/bid/94820
vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1037434
vdb-entryx_refsource_SECTRACK
https://ics-cert.us-cert.gov/advisories/ICSA-16-348-05
x_refsource_MISC

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

.