CVE-2018-7846
CVSS V2 Medium 5
CVSS V3 Critical 9.8
Description
A CWE-501: Trust Boundary Violation vulnerability on connection to the Controller exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum and Modicon Premium which could cause unauthorized access by conducting a brute force attack on Modbus protocol to the controller.
Overview
- CVE ID
- CVE-2018-7846
- Assigner
- cybersecurity@se.com
- Vulnerability Status
- Analyzed
- Published Version
- 2019-05-22T20:29:01
- Last Modified Date
- 2022-02-03T14:07:52
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:schneider-electric:modicon_m580:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:schneider-electric:modicon_m340:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:schneider-electric:modicon_quantum_firmware:*:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:schneider-electric:modicon_quantum:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:schneider-electric:modicon_premium_firmware:*:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:schneider-electric:modicon_premium:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/ | Vendor Advisory |
| https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0735 | Exploit Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-7846 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7846 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:34:35 | Added to TrackCVE | |||
| 2022-12-03 21:07:08 | cybersecurity@schneider-electric.com | cybersecurity@se.com | CVE Assigner | updated |
| 2022-12-03 21:07:08 | 2019-05-22T20:29Z | 2019-05-22T20:29:01 | CVE Published Date | updated |
| 2022-12-03 21:07:08 | 2022-02-03T14:07:52 | CVE Modified Date | updated | |
| 2022-12-03 21:07:08 | Analyzed | Vulnerability Status | updated |