VDB-128381 · CVE-2018-7793 · GCVE-0-2018-7793

FoxView HMI SCADA up to 9.3/10.4 Credential Management credentials management

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.
7.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in FoxView HMI SCADA up to 9.3/10.4. Affected by this vulnerability is an unknown functionality of the component Credential Management. The manipulation leads to credentials management. This vulnerability is documented as CVE-2018-7793. The attack needs to be performed locally. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in FoxView HMI SCADA up to 9.3/10.4 (SCADA Software) and classified as critical. This issue affects an unknown functionality of the component Credential Management. The manipulation with an unknown input leads to a credentials management vulnerability. Using CWE to declare the problem leads to CWE-255. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A Credential Management vulnerability exists in FoxView HMI SCADA (All Foxboro DCS, Foxboro Evo, and IA Series versions prior to Foxboro DCS Control Core Services 9.4 (CCS 9.4) and FoxView 10.5.) which could cause unauthorized disclosure, modification, or disruption in service when the password is modified without permission.

The bug was discovered 12/19/2018. The weakness was released 12/24/2018 (Website). The advisory is shared at schneider-electric.com. The identification of this vulnerability is CVE-2018-7793 since 03/08/2018. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1552 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 9.4 or 10.5 eliminates this vulnerability.

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Productinfo

Type

SCADA Software

Vendor

FoxView

Name

HMI SCADA

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.7
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: Credentials management
CWE: CWE-255
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: HMI SCADA 9.4/10.5

Timelineinfo

03/08/2018 🔍
12/19/2018 +286 days 🔍
12/24/2018 +5 days 🔍
12/24/2018 +0 days 🔍
12/25/2018 +1 days 🔍
04/24/2020 +486 days 🔍

Sourcesinfo

Advisory: schneider-electric.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-7793 (🔍)
GCVE (CVE): GCVE-0-2018-7793
GCVE (VulDB): GCVE-100-128381

Entryinfo

Created: 12/25/2018 10:37
Updated: 04/24/2020 08:59
Changes: 12/25/2018 10:37 (59), 04/24/2020 08:59 (2)
Complete: 🔍
Cache ID: 216::103