Double Free in Wago PFC200 Controller - CVE-2019-5184
Published: March 20, 2020
Vulnerability identifier: #VU26254
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2019-5184
CWE-ID: CWE-415
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 perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the iocheckd service "I/O-Check" functionality. A remote authenticated attacker can use a specially crafted XML cache file, trigger double free error and cause a denial of service condition on the target system, leading to remote code execution.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2019-5184
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.