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CVE-2018-3903

Description

On Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17, the video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. An attacker can send an HTTP request to trigger this vulnerability. The memcpy call overflows the destination buffer, which has a size of 512 bytes. An attacker can send an arbitrarily long "url" value in order to overwrite the saved-PC with 0x42424242.

POC

Reference

- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0574

Github

- https://github.com/ARPSyndicate/cvemon

- https://github.com/lnick2023/nicenice

- https://github.com/qazbnm456/awesome-cve-poc

- https://github.com/xbl3/awesome-cve-poc_qazbnm456