PT-2018-16268 · Samsung · Samsung Smartthings Hub

CVE-2018-3875 · Published 2018-09-10 · Updated 2023-05-19

Positive Technologies (AI Summary)

CVSS v3.1

9.9

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17

Description A buffer overflow issue exists in the credentials handler of the video-core's HTTP server. The video-core process incorrectly handles fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. This occurs because the strncpy function overflows the destination buffer, which has a size of 2,000 bytes. An attacker can exploit this by sending an arbitrarily long sessionToken value.

Recommendations For Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17, consider restricting the length of the sessionToken value in the JSON payload to prevent buffer overflow until a patch is available.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2018-3875

Affected Products

Samsung Smartthings Hub

References · 3

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2018-0555 · Exploit
• https://osv.dev/vulnerability/CVE-2018-3875 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-3875 · Security Note