Vulnerabilities > CVE-2019-5081 - Out-of-bounds Write vulnerability in Wago PFC 100 Firmware and PFC 200 Firmware

047910
CVSS 9.8 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
wago
CWE-787
critical
NVD
Published: 2019-12-18
Updated: 2021-07-21

Summary

An exploitable heap buffer overflow vulnerability exists in the iocheckd service ''I/O-Chec'' functionality of WAGO PFC 200 Firmware version 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause a heap buffer overflow, potentially resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.

Vulnerable Configurations

Part Description Count
OS
Wago
3
Hardware
Wago
2

Common Weakness Enumeration (CWE)

Talos

idTALOS-2019-0873
last seen2019-12-28
published2019-12-16
reporterTalos Intelligence
sourcehttp://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0873
titleWAGO PFC200 iocheckd service "I/O-Check" ReadPCBManuNum remote code execution vulnerability

References