PT-2018-16260 · Samsung · Samsung Smartthings Hub

Published 2018-08-23 · Updated 2023-05-16 · CVE-2018-3866

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 version 0.20.17

Description A buffer overflow issue exists in the samsungWifiScan handler of video-core's HTTP server. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. The strcpy function overflows the destination buffer, which has a size of 40 bytes. An attacker can send an arbitrarily long callbackUrl value to exploit this issue.

Recommendations For Samsung SmartThings Hub STH-ETH-250 version 0.20.17, as a temporary workaround, consider restricting access to the samsungWifiScan handler until a patch is available. Avoid using arbitrarily long callbackUrl values in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2018-3866

Affected Products

Samsung Smartthings Hub

References · 4

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2018-0548 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-3866 · Security Note
• https://osv.dev/vulnerability/CVE-2018-3866 · Vendor Advisory
• https://t.me/cvenotify/50553 · Telegram Post