CVE-2019-5166 — HIGH (7.8) — White Hats Nepal

Vulnerability Description

An exploitable stack buffer overflow vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 version 03.02.02(14). A specially crafted XML cache file written to a specific location on the device can cause a stack buffer overflow, resulting in code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache 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-787

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0961ExploitMitigationThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0961ExploitMitigationThird Party Advisory

FAQ

What is CVE-2019-5166?

CVE-2019-5166 is a vulnerability with a CVSS score of 7.8 (HIGH). An exploitable stack buffer overflow vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 version 03.02.02(14). A specially crafted XML cache file written to a specif...

How severe is CVE-2019-5166?

CVE-2019-5166 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-2019-5166?

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