Samsung SmartThings Hub STH-ETH-250 0.20.17 Video-Core HTTP Server /cameras/XXXX/clips memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.3$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Samsung SmartThings Hub STH-ETH-250 0.20.17 (Router Operating System). This issue affects an unknown functionality of the file /cameras/XXXX/clips of the component Video-Core HTTP Server. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An exploitable buffer overflow vulnerability exists in the /cameras/XXXX/clips handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The strncpy call overflows the destination buffer, which has a size of 52 bytes. An attacker can send an arbitrarily long "startTime" value in order to exploit this vulnerability.

The bug was discovered 07/26/2018. The weakness was released 09/21/2018 (Website). It is possible to read the advisory at talosintelligence.com. The identification of this vulnerability is CVE-2018-3894 since 01/01/2018. The exploitation is known to be easy. The attack may be initiated remotely. The successful exploitation needs a simple authentication. Technical details of the vulnerability are known, but there is no available exploit.

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.

Entries connected to this vulnerability are available at 123291, 123345, 123812 and 123813.

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 9.9
CNA Vector (Talos): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

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-2018-3894 (🔍)
See also: 🔍

Entryinfo

Created: 09/22/2018 07:58
Updated: 05/17/2023 15:48
Changes: 09/22/2018 07:58 (59), 03/26/2020 15:49 (1), 05/17/2023 15:48 (14)
Complete: 🔍

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