Active Debug Code in AutomationDirect products - CVE-2024-21785

Vulnerability identifier: #VU89808

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: CVE-2024-21785

CWE-ID: CWE-489

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the active debug code issue in the Telnet Diagnostic Interface functionality. A remote attacker can gain access to the target system.

Productivity 3000 P3-550E CPU
Productivity 3000 P3-550 CPU
Productivity 3000 P3-530 CPU
Productivity 2000 P2-550 CPU
Productivity 1000 P1-550 CPU
Productivity 1000 P1-540 CPU

Install updates from vendor's website.

Productivity 3000 P3-550E CPU - update to 4.2.0
Productivity 3000 P3-550 CPU - update to 4.2.0
Productivity 3000 P3-530 CPU - update to 4.2.0
Productivity 2000 P2-550 CPU - update to 4.2.0
Productivity 1000 P1-550 CPU - update to 4.2.0
Productivity 1000 P1-540 CPU - update to 4.2.0

• https://www.cisa.gov/news-events/ics-advisories/icsa-24-144-01

• Multiple vulnerabilities in AutomationDirect Productivity PLCs