An exploitable stack buffer overflow vulnerability exists in the iocheckd service ''I/O-Check'' functionality of WAGO PFC200 Firmware version 03.01.07(13), WAGO PFC200 Firmware version 03.00.39(12) and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause a stack buffer overflow, resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.
The product writes data past the end, or before the beginning, of the intended buffer.
Link | Tags |
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https://talosintelligence.com/vulnerability_reports/TALOS-2019-0863 | third party advisory |