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.
4.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Siemens SIMATIC Step 7. It has been declared as problematic. This vulnerability affects unknown code of the component TIA Project File Handler. The manipulation results in 7pk security. This vulnerability is known as CVE-2016-7959. Attacking locally is a requirement. No exploit is available. It is recommended to upgrade the affected component. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Detailsinfo

A vulnerability classified as problematic has been found in Siemens SIMATIC Step 7 (SCADA Software). Affected is some unknown processing of the component TIA Project File Handler. The manipulation with an unknown input leads to a 7pk security vulnerability. CWE is classifying the issue as CWE-254. This is going to have an impact on confidentiality. CVE summarizes:

Siemens SIMATIC STEP 7 (TIA Portal) before 14 improperly stores pre-shared key data in TIA project files, which makes it easier for local users to obtain sensitive information by leveraging access to a file and conducting a brute-force attack.

The weakness was published 10/13/2016 by Positive Technologies with Positive Technologies (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2016-7959 since 09/09/2016. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1211.

Upgrading to version 14 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93551†). Similar entry is available at VDB-92701. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• SCADA Software

Vendor

• Siemens

Name

• SIMATIC Step 7

Version

• 4.0
• 12
• 13
• 13.0

License

• commercial

Website

• Vendor: https://www.siemens.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.7
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: 7pk security
CWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SIMATIC Step 7 14

Timelineinfo

09/09/2016 🔍
10/13/2016 +34 days 🔍
10/13/2016 +0 days 🔍
10/13/2016 +0 days 🔍
10/13/2016 +0 days 🔍
09/26/2022 +2174 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-869766⛔
Researcher: Positive Technologies
Organization: Positive Technologies
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-7959 (🔍)
GCVE (CVE): GCVE-0-2016-7959
GCVE (VulDB): GCVE-100-92700
SecurityFocus: 93551 - SIMATIC STEP 7 (TIA Portal) Multiple Local Information Disclosure Vulnerabilities

See also: 🔍

Entryinfo

Created: 10/13/2016 05:55 PM
Updated: 09/26/2022 08:49 AM
Changes: 10/13/2016 05:55 PM (51), 05/09/2019 08:03 AM (14), 09/26/2022 08:49 AM (4)
Complete: 🔍
Cache ID: 244:D73:40

Discussion

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