VDB-102945 · CVE-2017-6032 · BID 97562

Schneider Electric Modicon Modbus Protocol Session security check

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Schneider Electric Modicon Modbus Protocol and classified as problematic. The impacted element is an unknown function of the component Session Handler. Performing a manipulation results in security check. This vulnerability is known as CVE-2017-6032. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Schneider Electric Modicon Modbus Protocol (SCADA Software) (the affected version unknown). This affects an unknown part of the component Session Handler. The manipulation with an unknown input leads to a security check vulnerability. CWE is classifying the issue as CWE-358. The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A Violation of Secure Design Principles issue was discovered in Schneider Electric Modicon Modbus Protocol. The Modicon Modbus protocol has a session-related weakness making it susceptible to brute-force attacks.

The bug was discovered 04/11/2017. The weakness was published 06/30/2017 (Website). The advisory is shared at ics-cert.us-cert.gov. This vulnerability is uniquely identified as CVE-2017-6032 since 02/16/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1211 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 79 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 97562†). Similar entry is available at VDB-102946. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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: Security check
CWE: CWE-358
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

02/16/2017 🔍
04/11/2017 +54 days 🔍
04/11/2017 +0 days 🔍
06/29/2017 +79 days 🔍
06/30/2017 +1 days 🔍
06/30/2017 +0 days 🔍
12/30/2020 +1279 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: ics-cert.us-cert.gov
Researcher: Eran Goldstein
Status: Not defined

CVE: CVE-2017-6032 (🔍)
GCVE (CVE): GCVE-0-2017-6032
GCVE (VulDB): GCVE-100-102945
SecurityFocus: 97562 - Schneider Electric Modicon Modbus Protocol Multiple Authentication Bypass Vulnerabilities

See also: 🔍

Entryinfo

Created: 06/30/2017 10:50
Updated: 12/30/2020 10:27
Changes: 06/30/2017 10:50 (60), 10/21/2019 12:59 (3), 12/30/2020 10:27 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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