VDB-116577 · CVE-2018-7241 · BID 103542

Schneider Electric BMXNOR0200 Communication hard-coded credentials

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.
8.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Schneider Electric Modicon Premium, Modicon Quantum, Modicon M340 and BMXNOR0200. Affected is an unknown function of the component Communication Module. Performing a manipulation results in hard-coded credentials. This vulnerability is reported as CVE-2018-7241. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in Schneider Electric Modicon Premium, Modicon Quantum, Modicon M340 and BMXNOR0200 (SCADA Software) (version now known). This affects some unknown processing of the component Communication Module. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. CWE is classifying the issue as CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Hard coded accounts exist in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controlers in all versions of the communication modules.

The bug was discovered 03/27/2018. The weakness was disclosed 04/18/2018 with Positive Technologies (Website). The advisory is shared at schneider-electric.com. This vulnerability is uniquely identified as CVE-2018-7241 since 02/19/2018. 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 T1110.001 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 22 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 103542†). The entries VDB-116576 and VDB-116578 are pretty similar. 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: 8.5
VulDB Meta Temp Score: 8.5

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

NVD Base Score: 9.8
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: Hard-coded credentials
CWE: CWE-798 / CWE-259 / CWE-255
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

02/19/2018 🔍
03/22/2018 +31 days 🔍
03/27/2018 +5 days 🔍
04/18/2018 +21 days 🔍
04/18/2018 +0 days 🔍
04/19/2018 +1 days 🔍
01/27/2020 +648 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

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

CVE: CVE-2018-7241 (🔍)
GCVE (CVE): GCVE-0-2018-7241
GCVE (VulDB): GCVE-100-116577
SecurityFocus: 103542 - Multiple Schneider Electric Modicon Products CVE-2018-7241 Remote Security Vulnerability

See also: 🔍

Entryinfo

Created: 04/19/2018 23:13
Updated: 01/27/2020 17:53
Changes: 04/19/2018 23:13 (60), 01/27/2020 17:53 (5)
Complete: 🔍
Cache ID: 216::103

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

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