Improper authentication in Allen-Bradley MicroLogix 1400 - #VU11608

Vulnerability identifier: #VU11608

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: N/A

CWE-ID: CWE-287

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote unauthenticated attacker to execute arbitrary code on the target system.

The weakness exists due to improper authentication. A remote attacker can submit a specially crafted packet and execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Allen-Bradley MicroLogix 1400

Install update from vendor's website.

• https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0443
• https://ics-cert.us-cert.gov/advisories/ICSA-18-095-01

• Multiple vulnerabilities in Rockwell Automation MicroLogix