CVE-2019-5176 — MEDIUM (5.5)

Vulnerability Description

An exploitable stack buffer overflow vulnerability vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of 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.The destination buffer sp+0x40 is overflowed with the call to sprintf() for any gateway values that are greater than 512-len(‘/etc/config-tools/config_default_gateway number=0 state=enabled value=‘) in length. A gateway value of length 0x7e2 will cause the service to crash.

CVSS Score

5.5

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

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-2019-0963ExploitMitigationTechnical Description
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0963ExploitMitigationTechnical Description

FAQ

What is CVE-2019-5176?

CVE-2019-5176 is a vulnerability with a CVSS score of 5.5 (MEDIUM). An exploitable stack buffer overflow vulnerability vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 Firmware version 03.02.02(14). An attacker can send a speciall...

How severe is CVE-2019-5176?

CVE-2019-5176 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-5176?

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