Siemens 7KM PAC Switched Ethernet PROFINET Expansion Module PROFINET DCP Packet input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Siemens 7KM PAC Switched Ethernet PROFINET Expansion Module 2.1.3. It has been classified as problematic. The affected element is an unknown function of the component PROFINET DCP Packet Handler. The manipulation leads to input validation. This vulnerability is listed as CVE-2017-9945. The attack must be carried out from within the local network. There is no available exploit. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Siemens 7KM PAC Switched Ethernet PROFINET Expansion Module 2.1.3. This issue affects an unknown code block of the component PROFINET DCP Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

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.

The bug was discovered 08/31/2017. The weakness was presented 08/30/2017 (Website). The advisory is shared at siemens.com. The identification of this vulnerability is CVE-2017-9945 since 06/26/2017. Access to the local network is required for this attack. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

Addressing this vulnerability is possible by firewalling .

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 100562†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.5
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/26/2017 🔍
08/30/2017 +65 days 🔍
08/30/2017 +0 days 🔍
08/31/2017 +1 days 🔍
08/31/2017 +0 days 🔍
08/31/2017 +0 days 🔍
12/27/2022 +1944 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-771218
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-9945 (🔍)
GCVE (CVE): GCVE-0-2017-9945
GCVE (VulDB): GCVE-100-106013
SecurityFocus: 100562 - Siemens 7KM PAC Switched Ethernet PROFINET Expansion Module Denial of Service Vulnerability

Entryinfo

Created: 08/31/2017 10:36
Updated: 12/27/2022 11:38
Changes: 08/31/2017 10:36 (58), 12/29/2019 20:56 (4), 12/27/2022 11:38 (3)
Complete: 🔍
Cache ID: 216:C04:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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