CVE-2019-5172 — 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 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.

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	Pfc200	-

Related Weaknesses (CWE)

CWE-78

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962ExploitMitigationTechnical Description
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962ExploitMitigationTechnical Description

FAQ

What is CVE-2019-5172?

CVE-2019-5172 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). An attacker can send a specially crafted packet to...

How severe is CVE-2019-5172?

CVE-2019-5172 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-2019-5172?

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