VDB-107140 · CVE-2017-7971 · BID 99913

Schneider Electric PowerSCADA Anywhere 1.0 SSL certificate validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Schneider Electric PowerSCADA Anywhere 1.0. Affected by this vulnerability is an unknown functionality of the component SSL. Executing a manipulation can lead to certificate validation. This vulnerability is registered as CVE-2017-7971. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in Schneider Electric PowerSCADA Anywhere 1.0 (SCADA Software) and classified as critical. This vulnerability affects an unknown code block of the component SSL. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A vulnerability exists in Schneider Electric's PowerSCADA Anywhere v1.0 redistributed with PowerSCADA Expert v8.1 and PowerSCADA Expert v8.2 and Citect Anywhere version 1.0 that allows the use of outdated cipher suites and improper verification of peer SSL Certificate.

The bug was discovered 07/20/2017. The weakness was published 09/26/2017 with Schneider Electric (Website). The advisory is shared for download at schneider-electric.com. This vulnerability was named CVE-2017-7971 since 04/19/2017. The exploitation appears to be easy. The attack can be initiated remotely. The requirement for exploitation is a single authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

The vulnerability was handled as a non-public zero-day exploit for at least 67 days. During that time the estimated underground price was around $0-$5k.

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 99913†). Similar entries are available at VDB-107138, VDB-107139, VDB-107141 and VDB-113181. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/19/2017 🔍
07/20/2017 +92 days 🔍
07/20/2017 +0 days 🔍
09/25/2017 +67 days 🔍
09/26/2017 +1 days 🔍
09/26/2017 +0 days 🔍
01/14/2021 +1206 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: schneider-electric.com
Researcher: Schneider Electric
Organization: Schneider Electric
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-7971 (🔍)
GCVE (CVE): GCVE-0-2017-7971
GCVE (VulDB): GCVE-100-107140
SecurityFocus: 99913 - Schneider Electric PowerSCADA Anywhere and Citect Anywhere Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 09/26/2017 15:14
Updated: 01/14/2021 13:38
Changes: 09/26/2017 15:14 (64), 11/19/2019 17:16 (2), 01/14/2021 13:38 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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