Siemens · SIMATIC CP

CVE-2016-8562

Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability

Exploited in attacks High 7.5 Attack chance: 3.6%

What it is

A vulnerability has been identified in SIMATIC CP 1543-1 (All versions < V2.0.28), SIPLUS NET CP 1543-1 (All versions < V2.0.28). Under special conditions it was possible to write SNMP variables on port 161/udp which should be read-only and should only be configured with TIA-Portal. A write to these variables could reduce the availability or cause a denial-of-service.

CISA: An improper privilege management vulnerability exists within the Siemens SIMATIC Communication Processor (CP) that allows a privileged attacker to remotely cause a denial of service.

What to do

Apply updates per vendor instructions.

Deadline for US federal agencies: March 24, 2022

Added to the CISA list: March 3, 2022
Published: November 18, 2016
Severity: High 7.5 CVSS 3.1
Chance of attacks in the next 30 days (EPSS): 3.6% in the top 10.6% of all known vulnerabilities
Weakness: CWE-20
More details: NVD · CVE.org · CISA

All references (4)

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Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.