Vulnerability CVE-2017-9945
Published: 2017-08-30   Modified: 2017-08-31

Description:
In the Siemens 7KM PAC Switched Ethernet PROFINET expansion module (All versions < V2.1.3), a Denial-of-Service condition could be induced by a specially crafted PROFINET DCP packet sent as a local Ethernet (Layer 2) broadcast. The affected component requires a manual restart via the main device to recover.

CVSS2 => (AV:A/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.1/10
6.9/10
6.5/10
Exploit range
Attack complexity
Authentication
Adjacent network
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Siemens -> 7km pac switched ethernet profinet expansion module firmware 

 References:
http://www.securityfocus.com/bid/100562
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-771218.pdf
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