CVE-2019-5177: An exploitable stack buffer overflow vulnerability vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 Firmware version…

PriorityP423medium5.5CVSS 3.1

AVLACLPRLUINSUCNINAH

EPSS

0.46%

36.7th percentile

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). The destination buffer sp+0x440 is overflowed with the call to sprintf() for any domainname values that are greater than 1024-len(‘/etc/config-tools/edit_dns_server domain-name=‘) in length. A domainname value of length 0x3fa will cause the service to crash.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
wago	pfc200_firmware	—	—
wago	wago_pfc200	—	—

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P

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