VDB-116578 · CVE-2018-7242 · BID 103543

Schneider Electric BMXNOR0200 Communication Collision inadequate encryption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Schneider Electric Modicon Premium, Modicon Quantum, Modicon M340 and BMXNOR0200. Affected by this vulnerability is an unknown functionality of the component Communication Module. Executing a manipulation can lead to inadequate encryption (Collision). This vulnerability appears as CVE-2018-7242. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in Schneider Electric Modicon Premium, Modicon Quantum, Modicon M340 and BMXNOR0200 (SCADA Software) (version unknown). This vulnerability affects an unknown function of the component Communication Module. The manipulation with an unknown input leads to a inadequate encryption vulnerability (Collision). The CWE definition for the vulnerability is CWE-326. The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Vulnerable hash algorithms exists in Schneider Electric's Modicon Premium, Modicon Quantum, Modicon M340, and BMXNOR0200 controlers in all versions of the communication modules. The algorithm used to encrypt the password is vulnerable to hash collision attacks.

The bug was discovered 03/27/2018. The weakness was presented 04/18/2018 with Positive Technologies (Website). The advisory is available at schneider-electric.com. This vulnerability was named CVE-2018-7242 since 02/19/2018. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1600 by the MITRE ATT&CK project.

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 103543†). See VDB-116576 and VDB-116577 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.7

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
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

Name: Collision
Class: Inadequate encryption / Collision
CWE: CWE-326 / CWE-310
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-2018-7242 (🔍)
GCVE (CVE): GCVE-0-2018-7242
GCVE (VulDB): GCVE-100-116578
SecurityFocus: 103543 - Multiple Schneider Electric Modicon Products CVE-2018-7242 Remote Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 04/19/2018 23:13
Updated: 01/27/2020 18:02
Changes: 04/19/2018 23:13 (61), 01/27/2020 18:02 (5)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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