CVE-2018-3905

An exploitable buffer overflow vulnerability exists in the camera "create" feature of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices…

High · published August 23, 2018

CVSS v3.0
8.5
EPSS
1%
Percentile
73.9
In the wild
Unconfirmed
What it is

⚡ A sneaky buffer overflow is waiting to be triggered in Samsung's SmartThings Hub! An attacker can exploit the camera 'create' feature with just an HTTP request. 🔥 Think of it like a restaurant where the server misreads the order and fills an oversized plate with too much food — it spills everywhere, disrupting the whole kitchen. That's similar to how this buffer overflow allows unauthorized data overflow in the device's memory. If exploited, an attacker could send a crafted HTTP request to the SmartThings Hub, potentially allowing them to run arbitrary code. This could lead to unauthorized access and control over your smart home devices, putting your privacy and security at risk.

Put simply

Think of it like a restaurant where the server misreads the order and fills an oversized plate with too much food — it spills everywhere, disrupting the whole kitchen. That's similar to how this buffer overflow allows unauthorized data overflow in the device's memory. This vulnerability occurs when the video-core process incorrectly handles the 'state' field from a user-controlled JSON payload, resulting in a buffer overflow on the stack of the Samsung SmartThings Hub's HTTP server.

What to do

If exploited, an attacker could send a crafted HTTP request to the SmartThings Hub, potentially allowing them to run arbitrary code. This could lead to unauthorized access and control over your smart home devices, putting your privacy and security at risk. To protect your devices, update the firmware to the latest version as soon as possible. Ensure that all SmartThings Hub devices run firmware version 0.20.18 or higher to mitigate this risk. Regularly check for firmware updates to stay secure! You've got this! By taking these steps, you're locking down your smart home and becoming a security hero! 🛡️

The record
Technical detail
CVSS v3.0
8.5 · HIGH
Vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01489 · 73.9th percentile
Published
2018-08-23T15:00Z
EPSS history
Timeline
  • 23 AUG 15:00Z
    An exploitable buffer overflow vulnerability exists in the camera "create" feature of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices…
    cvelistv5