CVE-2019-5173: Command Injection

Published Mar 11, 2020

Updated

An exploitable command injection vulnerability exists in the iocheckd service ‘I/O-Check’ function of the WAGO PFC 200 Firmware version 03.02.02(14). A specially crafted XML cache file written to a specific location on the device can be used to inject OS commands. An attacker can send a specially crafted packet to trigger the parsing of this cache file. At 0x1e9fc the extracted state value from the xml file is used as an argument to /etc/config-tools/configinterfaces interface=X1 state=<contents of state node> using sprintf(). This command is later executed via a call to system().

Affected Software

2 affected components

WAGO PFC200 Firmware=03.02.02\(14\)

WAGO PFC200

Event History

Mar 11, 2020

CVE Published

via MITRE·10:18 PM

Data Sourced

via MITRE·10:18 PM

DescriptionWeakness

Frequently Asked Questions

What is the vulnerability ID for this command injection vulnerability?

The vulnerability ID for this command injection vulnerability is CVE-2019-5173.

What is the affected software for this vulnerability?

The affected software for this vulnerability is WAGO PFC 200 Firmware version 03.02.02(14).

What is the severity rating of the vulnerability?

The severity rating of the vulnerability is 7.8 (High).

How can an attacker exploit this vulnerability?

An attacker can exploit this vulnerability by sending a specially crafted XML cache file to the device.

Is there a fix available for this vulnerability?

Currently, there is no specific fix available for this vulnerability. It is recommended to follow vendor recommendations and apply updates when they become available.