CVE-2019-5167 — HIGH (7.8) — White Hats Nepal

Vulnerability 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.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Wago	Pfc200 Firmware	03.02.02\(14\)
Wago	Pfc 200	-

Related Weaknesses (CWE)

CWE-78

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962ExploitThird Party Advisory

FAQ

What is CVE-2019-5167?

CVE-2019-5167 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 version 03.02.02(14). At 0x1e3f0 the extracted dns value from the xml file is use...

How severe is CVE-2019-5167?

CVE-2019-5167 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-2019-5167?

Check the references section above for vendor advisories and patch information. Affected products include: Wago Pfc200 Firmware, Wago Pfc 200.