Denial of service in Siemens SIMATIC PCS 7



Published: 2017-11-03
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-14023
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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SIMATIC PCS 7
Server applications / SCADA systems

Vendor Siemens

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Denial of service

EUVDB-ID: #VU9110

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2017-14023

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker in the 'administrators' group to cause DoS condition on the target system.

The weakness exists due to improper input validation. A remote attacker can send specially crafted data to the target DCOM interface and cause the target service to crash.

Mitigation

Install update from vendor's website (V8.1 SP1 with WinCC V7.3 Upd 13).

Vulnerable software versions

SIMATIC PCS 7: 8.1 - 8.2


CPE2.3 External links

http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-523365.pdf

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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