Buffer overflow in Wago PFC200 Controller and WAGO PFC100 Controller - CVE-2019-5074
Published: December 17, 2019
Vulnerability identifier: #VU23631
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-2019-5074
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WAGO
Affected software:
Wago PFC200 Controller
WAGO PFC100 Controller
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 the iocheckd service "I/O-Check" functionality when generating a response to the "BC_ProductLabel" message. 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-2019-5074
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.