CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.8	$0-$5k	0.00

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-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. 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 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.

See 101064 for similar entry.

Productinfo

Type

• SCADA Software

Vendor

• Siemens

Name

• HMI Mobile Panel
• HMI Multi Panel
• SIMATIC HMI Comfort Panel
• SIMATIC S7-300
• SIMATIC S7-400

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

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 🔍
12/06/2022 +2034 days 🔍

Sourcesinfo

Vendor: siemens.com

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

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

See also: 🔍

Entryinfo

Created: 05/12/2017 14:33
Updated: 12/06/2022 10:29
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)
Complete: 🔍

Discussion

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