#VU6190 Improper input validation in Siemens SIMATIC WinCC and SIMATIC PCS 7 - CVE-2014-8551

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Main Vulnerability Database Vulnerabilities #VU6190

#VU6190 Improper input validation in Siemens SIMATIC WinCC and SIMATIC PCS 7 - CVE-2014-8551

Published: April 5, 2017


Vulnerability identifier: #VU6190
Vulnerability risk: Critical
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2014-8551
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild
Vulnerable software:
Siemens SIMATIC WinCC
SIMATIC PCS 7
Software vendor:
Siemens

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to improper input validation when processing packets sent to the WinCC server. A remote unauthenticated attacker can send a specially crafted packet and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Note: this vulnerability has been exploited in targeted attacks.


Remediation

Install updates from vendor's website:

TIA Portal V13 (including WinCC Professional Runtime)

WinCC 7.0

WinCC V7.0 SP3

WinCC 7.2

WinCC 7.3

PCS 7 V7.1 SP4

PCS 7 V8.0 SP2

PCS 7 V8.1


External links