Buffer overflow in Wago PFC200 Controller - CVE-2019-5179

 

Buffer overflow in Wago PFC200 Controller - CVE-2019-5179

Published: March 20, 2020


Vulnerability identifier: #VU26269
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-5179
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: WAGO
Affected software:
Wago PFC200 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 in the "ntp" value. A remote authenticated attacker can use a specially crafted XML cache file, 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-2019-5179

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

Sources