VDB-101507 · CVE-2017-7968 · BID 98544

Schneider Electric InduSoft Web Studio up to 8.0 Patch 3 Permission access control

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.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Schneider Electric InduSoft Web Studio up to 8.0 Patch 3. It has been rated as critical. Affected is an unknown function of the component Permission. The manipulation leads to access control. This vulnerability is uniquely identified as CVE-2017-7968. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Schneider Electric InduSoft Web Studio up to 8.0 Patch 3 (SCADA Software) and classified as critical. This issue affects an unknown function of the component Permission. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An Incorrect Default Permissions issue was discovered in Schneider Electric Wonderware InduSoft Web Studio v8.0 Patch 3 and prior versions. Upon installation, Wonderware InduSoft Web Studio creates a new directory and two files, which are placed in the system's path and can be manipulated by non-administrators. This could allow an authenticated user to escalate his or her privileges.

The bug was discovered 05/18/2017. The weakness was disclosed 05/19/2017 by Karn Ganeshen (Website). It is possible to read the advisory at download.schneider-electric.com. The identification of this vulnerability is CVE-2017-7968 since 04/19/2017. Attacking locally is a requirement. The successful exploitation requires a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370408 (Schneider Electric Wonderware InduSoft Web Studio Local Privilege Escalation Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 98544†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

SCADA Software

Vendor

Schneider Electric

Name

InduSoft Web Studio

Version

8.0 Patch 3

License

commercial

Website

Vendor: https://www.schneider-electric.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
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

OpenVAS ID: 802537
OpenVAS Name: InduSoft Web Studio Privilege Escalation Vulnerability Aug17 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/19/2017 🔍
05/18/2017 +29 days 🔍
05/18/2017 +0 days 🔍
05/19/2017 +1 days 🔍
05/19/2017 +0 days 🔍
05/19/2017 +0 days 🔍
08/23/2024 +2653 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: download.schneider-electric.com
Researcher: Karn Ganeshen
Status: Not defined

CVE: CVE-2017-7968 (🔍)
GCVE (CVE): GCVE-0-2017-7968
GCVE (VulDB): GCVE-100-101507
SecurityFocus: 98544 - Schneider Electric Wonderware InduSoft Web Studio Local Privilege Escalation Vulnerability
OSVDB: - CVE-2017-7968 - Schneider-Electric - Wonderware Indusoft Web Studio - High

Entryinfo

Created: 05/19/2017 23:49
Updated: 08/23/2024 16:52
Changes: 05/19/2017 23:49 (63), 09/30/2020 14:22 (5), 08/23/2024 16:52 (17)
Complete: 🔍
Cache ID: 216::103

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