CVE-2019-5168 Command injection in WAGO PFC200 Firmware
An attacker can execute arbitrary commands on WAGO PFC200 devices by sending a crafted XML file to the iocheckd service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-5168?
CVE-2019-5168 is a high-severity command injection vulnerability in WAGO PFC200 Firmware, published on 10 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An exploitable command injection vulnerability exists in the iocheckd service ‘I/O-Check’ function of the WAGO PFC 200 version 03.02.02(14). An attacker can send a specially crafted XML cache file At 0x1e8a8 the extracted domainname value from the xml file is used as an argument to /etc/config-tools/edit_dns_server domain-name=<contents of domainname node> using sprintf().This command is later executed via a call to system().
Weakness: CWE-78
Which versions are affected by CVE-2019-5168?
It affects 1 product.
Products include Wago Pfc200 Firmware.
How do I fix CVE-2019-5168?
No fix has been published for CVE-2019-5168 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2019-5168 being exploited?
There is no known exploitation of CVE-2019-5168 in the wild and no public exploit code.
Other vulnerabilities in WAGO PFC200 Firmware
Sources
Also known as GHSA-3q35-r527-69h9.