SNMP Vulnerability in SIMATIC CP 1543-1 and SIPLUS NET CP 1543-1 by Siemens
CVE-2016-8562

7.5HIGH

Key Information:

Vendor
Siemens
Status
Simatic Cp 1543-1 Firmware
Vendor
CVE Published:
18 November 2016

Badges

👾 Exploit Exists🦅 CISA Reported

Summary

A security flaw affects the SIMATIC CP 1543-1 and SIPLUS NET CP 1543-1, specifically versions prior to V2.0.28. Under particular circumstances, this vulnerability allows the writing of SNMP variables on port 161/udp that are intended to be read-only, which should only be configurable through the TIA-Portal. Manipulating these variables may lead to reduced system availability or even cause a denial-of-service situation, posing a significant risk to operations.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply updates per vendor instructions.

References

http://www.securityfocus.com/bid/94436
vdb-entryx_refsource_BID
https://ics-cert.us-cert.gov/advisories/ICSA-16-327-01
x_refsource_MISC
http://www.siemens.com/cert/pool/cert/siemens_security_ad...
x_refsource_CONFIRM

EPSS Score

5% chance of being exploited in the next 30 days.

CVSS V3.1

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

Timeline

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

.