Vulnerability Details CVE-2019-5167
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 67.8%
CVSS Severity
CVSS v3 Score 7.8
CVSS v2 Score 7.2
References
Products affected by CVE-2019-5167
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cpe:2.3:h:wago:pfc_200:-
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cpe:2.3:o:wago:pfc200_firmware:03.02.02(14)