Vulnerability Description
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 0x1e87c the extracted hostname value from the xml file is used as an argument to /etc/config-tools/change_hostname hostname=<contents of hostname node> using sprintf(). This command is later executed via a call to system().
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wago | Pfc200 Firmware | 03.02.02\(14\) |
| Wago | Pfc200 | - |
Related Weaknesses (CWE)
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962ExploitMitigationTechnical Description
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962ExploitMitigationTechnical Description
FAQ
What is CVE-2019-5170?
CVE-2019-5170 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 sp...
How severe is CVE-2019-5170?
CVE-2019-5170 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-5170?
Check the references section above for vendor advisories and patch information. Affected products include: Wago Pfc200 Firmware, Wago Pfc200.