CVE-2019-5167

Public Exploit

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). At 0x1e3f0 the extracted dns value from the xml file is used as an argument to /etc/config-tools/edit_dns_server %s dns-server-nr=%d dns-server-name=<contents of dns 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 dns entries will be parsed from the xml file.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.58%
Third-Party Advisory talosintelligence.com
Affected: Wago WAGO PFC200 Firmware
Published at:
Updated at:

References

Link Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2019-5167?
CVE-2019-5167 has been scored as a high severity vulnerability.
How to fix CVE-2019-5167?
To fix CVE-2019-5167, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-5167 being actively exploited in the wild?
It is possible that CVE-2019-5167 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-5167?
CVE-2019-5167 affects Wago WAGO PFC200 Firmware.
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