OS Command Injection in Wago PFC200 Controller - CVE-2019-5171
Published: March 20, 2020
Vulnerability identifier: #VU26280
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-2019-5171
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: WAGO
Affected software:
Wago PFC200 Controller
Wago PFC200 Controller
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the iocheckd service "I/O-Check" function in the "ip" value. A remote authenticated attacker can use a specially crafted XML cache file and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2019-5171
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.