#VU54631 Input validation error in Allen-Bradley MicroLogix 1100 - CVE-2021-33012

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Main Vulnerability Database Vulnerabilities #VU54631

#VU54631 Input validation error in Allen-Bradley MicroLogix 1100 - CVE-2021-33012

Published: July 9, 2021


Vulnerability identifier: #VU54631
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-33012
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Allen-Bradley MicroLogix 1100
Software vendor:
Rockwell Automation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input within the PLC when the controller is switched to RUN mode. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links