5.5
MEDIUM
CVE-2018-3926
Samsung SmartThings Hub ZigBee Firmware Integer Underflow Vulnerability
Description

An exploitable integer underflow vulnerability exists in the ZigBee firmware update routine of the hubCore binary of the Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The hubCore process incorrectly handles malformed files existing in its data directory, leading to an infinite loop, which eventually causes the process to crash. An attacker can send an HTTP request to trigger this vulnerability.

INFO

Published Date :

Aug. 28, 2018, 5:29 p.m.

Last Modified :

March 4, 2023, 2:03 a.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2018-3926 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Samsung sth-eth-250_firmware
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-3926.

URL Resource
http://www.securityfocus.com/bid/105162 Broken Link Third Party Advisory VDB Entry
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0593 Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-3926 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-3926 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Mar. 04, 2023

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://www.securityfocus.com/bid/105162 Third Party Advisory, VDB Entry http://www.securityfocus.com/bid/105162 Broken Link, Third Party Advisory, VDB Entry
  • CVE Modified by [email protected]

    Apr. 19, 2022

    Action Type Old Value New Value
    Added CVSS V3 Talos AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
  • Reanalysis by [email protected]

    Nov. 09, 2018

    Action Type Old Value New Value
    Changed CVSS V2 (AV:L/AC:M/Au:N/C:N/I:N/A:P) (AV:L/AC:L/Au:N/C:N/I:N/A:C)
    Changed CVSS V3 AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed CPE Configuration AND OR *cpe:2.3:o:samsung:smartthings_hub_sth-eth-250-firmware:0.20.17:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:smartthings_hub_sth-eth-250:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:samsung:sth-eth-250_firmware:0.20.17:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:sth-eth-250:-:*:*:*:*:*:*:*
  • Initial Analysis by [email protected]

    Nov. 07, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
    Changed Reference Type https://talosintelligence.com/vulnerability_reports/TALOS-2018-0593 No Types Assigned https://talosintelligence.com/vulnerability_reports/TALOS-2018-0593 Exploit, Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/105162 No Types Assigned http://www.securityfocus.com/bid/105162 Third Party Advisory, VDB Entry
    Added CWE CWE-191
    Added CPE Configuration AND OR *cpe:2.3:o:samsung:smartthings_hub_sth-eth-250-firmware:0.20.17:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:smartthings_hub_sth-eth-250:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Aug. 29, 2018

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/105162 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-3926 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-3926 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} -0.02%

score

0.05707

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability