Rockwell Automation MicroLogix 1400 Version 21.6 and below may allow a remote unauthenticated attacker to send a specially crafted Modbus packet allowing the attacker to retrieve or modify random values in the register. If successfully exploited, this may lead to a buffer overflow resulting in a denial-of-service condition. The FAULT LED will flash RED and communications may be lost. Recovery from denial-of-service condition requires the fault to be cleared by the user.
References
| Link | Resource |
|---|---|
| https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1129877/loc/en_US#__highlight | Permissions Required Vendor Advisory |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-033-01 | Third Party Advisory US Government Resource |
| https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1129877/loc/en_US#__highlight | Permissions Required Vendor Advisory |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-033-01 | Third Party Advisory US Government Resource |
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 05:50
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1129877/loc/en_US#__highlight - Permissions Required, Vendor Advisory | |
| References | () https://us-cert.cisa.gov/ics/advisories/icsa-21-033-01 - Third Party Advisory, US Government Resource |
Information
Published : 2021-03-25 16:15
Updated : 2024-11-21 05:50
NVD link : CVE-2021-22659
Mitre link : CVE-2021-22659
CVE.ORG link : CVE-2021-22659
JSON object : View
Products Affected
rockwellautomation
- micrologix_1400
- micrologix_1400_firmware
CWE
CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')