Samsung SmartThings Hub STH-ETH-250 0.20.17 Video-Core HTTP Server memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Samsung SmartThings Hub STH-ETH-250 0.20.17 and classified as critical. Impacted is an unknown function of the component Video-Core HTTP Server. This manipulation causes memory corruption. This vulnerability appears as CVE-2018-3913. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability has been found in Samsung SmartThings Hub STH-ETH-250 0.20.17 (Router Operating System) and classified as critical. Affected by this vulnerability is an unknown part of the component Video-Core HTTP Server. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An exploitable stack-based buffer overflow vulnerability exists in the retrieval of database fields in the video-core HTTP server of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The strcpy call overflows the destination buffer, which has a size of 32 bytes. An attacker can send an arbitrarily long "accessKey" value in order to exploit this vulnerability.

The bug was discovered 07/26/2018. The weakness was presented 09/21/2018 (Website). The advisory is shared at talosintelligence.com. This vulnerability is known as CVE-2018-3913 since 01/01/2018. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 57 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-123347, VDB-124394 and VDB-124395 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 4.2
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Talos): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/01/2018 🔍
07/26/2018 +205 days 🔍
09/21/2018 +56 days 🔍
09/21/2018 +0 days 🔍
09/22/2018 +1 days 🔍
05/17/2023 +1698 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: talosintelligence.com
Status: Not defined

CVE: CVE-2018-3913 (🔍)
GCVE (CVE): GCVE-0-2018-3913
GCVE (VulDB): GCVE-100-124393
See also: 🔍

Entryinfo

Created: 09/22/2018 07:59
Updated: 05/17/2023 16:00
Changes: 09/22/2018 07:59 (58), 03/26/2020 16:16 (1), 05/17/2023 16:00 (14)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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