Buffer overflow in Wago PFC200 Controller and WAGO PFC100 Controller - CVE-2019-5075

 

Buffer overflow in Wago PFC200 Controller and WAGO PFC100 Controller - CVE-2019-5075

Published: December 17, 2019


Vulnerability identifier: #VU23632
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2019-5075
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: WAGO
Affected software:
Wago PFC200 Controller
WAGO PFC100 Controller

Detailed vulnerability description

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

The vulnerability exists due to a boundary error in iocheckd service "I/O-Check" functionality in the command line utility "getcouplerdetails". A remote attacker can send a specially crafted set of packets, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2019-5075

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

Sources