CVE-2019-5172: OS Command Injection
First published: Wed 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). An attacker can send a specially crafted packet to trigger the parsing of this cache file. At 0x1e840 the extracted ntp value from the xml file is used as an argument to /etc/config-tools/config_sntp time-server-%d=<contents of ntp node> using sprintf(). This command is later executed via a call to system(). This is done in a loop and there is no limit to how many ntp entries will be parsed from the xml file.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| WAGO PFC200 Firmware | =03.02.02\(14\) | |
| WAGO PFC200 |
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Frequently Asked Questions
What is CVE-2019-5172?
CVE-2019-5172 is a command injection vulnerability in the iocheckd service of the WAGO PFC 200 Firmware version 03.02.02(14).
What is the severity of CVE-2019-5172?
CVE-2019-5172 has a severity rating of 7.8 (high).
How does CVE-2019-5172 affect WAGO PFC 200 Firmware?
CVE-2019-5172 allows an attacker to send a specially crafted packet to trigger a command injection vulnerability in the iocheckd service of the WAGO PFC 200 Firmware version 03.02.02(14).
How can I mitigate CVE-2019-5172?
To mitigate CVE-2019-5172, it is recommended to update the WAGO PFC 200 Firmware to a version that is not vulnerable.
Where can I find more information about CVE-2019-5172?
More information about CVE-2019-5172 can be found at the following link: https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962
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