Vulnerability identifier: #VU26254
Vulnerability risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-415
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Wago PFC200 Controller
Hardware solutions /
Firmware
Vendor: WAGO
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.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
Wago PFC200 Controller: 03.02.02(14)
External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0965
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.