Siemens SIMATIC S7-300 PROFINET DCP Packet resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in Siemens SIMATIC S7-300, SIMATIC S7-400, SIMATIC HMI Comfort Panel, HMI Multi Panel and HMI Mobile Panel and classified as problematic. This issue affects some unknown processing of the component PROFINET DCP Packet Handler. This manipulation causes input validation. This vulnerability appears as CVE-2017-2681. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Siemens SIMATIC S7-300, SIMATIC S7-400, SIMATIC HMI Comfort Panel, HMI Multi Panel and HMI Mobile Panel (SCADA Software) and classified as problematic. Affected by this vulnerability is an unknown part of the component PROFINET DCP Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

Siemens SIMATIC S7-300 incl. F and T (All versions before V3.X.14), SIMATIC S7-400 incl. F and H (All versions), SIMATIC HMI Comfort Panels, HMI Multi Panels, HMI Mobile Panels (All versions) could be affected by a Denial-of-Service condition induced by a specially crafted PROFINET DCP (Layer 2 - Ethernet) packet sent to an affected product.

The bug was discovered 05/09/2017. The weakness was presented 05/11/2017 by Security Team (Website). It is possible to read the advisory at siemens.com. This vulnerability is known as CVE-2017-2681 since 12/01/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 98369†). See VDB-101064 for similar entry. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 103180
OpenVAS Name: Siemens SIMATIC S7 PLC Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/01/2016 🔍
05/08/2017 +158 days 🔍
05/09/2017 +1 days 🔍
05/11/2017 +2 days 🔍
05/11/2017 +0 days 🔍
05/12/2017 +1 days 🔍
07/09/2024 +2615 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-293562
Researcher: Security Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2681 (🔍)
GCVE (CVE): GCVE-0-2017-2681
GCVE (VulDB): GCVE-100-101083
SecurityFocus: 98369 - Multiple Siemens Products Multiple Denial of Service Vulnerabilities
OSVDB: - CVE-2017-2681 - Siemens - Dk Standard Ethernet Controller Firmware - Medium
SecurityTracker: 1038463

See also: 🔍

Entryinfo

Created: 05/12/2017 14:33
Updated: 07/09/2024 16:39
Changes: 05/12/2017 14:33 (64), 09/25/2020 12:36 (6), 12/23/2020 09:37 (3), 12/06/2022 10:29 (3), 07/09/2024 16:39 (27)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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