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().
[
{
"product": "WAGO PFC200 Firmware",
"vendor": "Wago",
"versions": [
{
"status": "affected",
"version": "version 03.02.02(14)"
}
]
}
]