PT-2018-16271 · Samsung · Samsung Smartthings Hub

Published 2018-08-23 · Updated 2023-05-19 · CVE-2018-3878

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 The issue is related to multiple exploitable buffer overflow vulnerabilities in the credentials handler of the video-core's HTTP server. These vulnerabilities occur due to the incorrect extraction of fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. Specifically, a strncpy operation overflows the destination buffer, which has a limited size of 16 bytes. An attacker can exploit this by sending an arbitrarily long "region" value.

Recommendations For Samsung SmartThings Hub STH-ETH-250 version 0.20.17, consider restricting access to the video-core's HTTP server until a patch is available. As a temporary workaround, avoid using the region variable in the affected JSON payload to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2018-3878

Affected Products

Samsung Smartthings Hub

References · 3

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2018-0555 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-3878 · Security Note
• https://osv.dev/vulnerability/CVE-2018-3878 · Vendor Advisory