What is CVE-2018-3911?

CVE-2018-3911 is a high-severity vulnerability in Samsung, classified under HTTP Response Splitting. CVSS score: 8.6/10. Published 2018-08-23.

How severe is CVE-2018-3911?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Samsung

CVE-2018-3911

An exploitable HTTP header injection vulnerability exists in the remote servers of Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17. The hubCore process listens on port 39500 and relays any unauthenticated message to SmartThings' remote servers, which insecurely handle JSON messages, leading to partially controlled requests generated toward the internal video-core process. An attacker can send an HTTP request to trigger this vulnerability.

EPSS: 0.012 (65.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N.

Affected products

Samsung — versions Samsung SmartThings Hub STH-ETH-250 - Firmware version 0.20.17
Samsung Sth-eth-250
Samsung Sth-eth-250_firmware — versions 0.20.17

Weakness classification (CWE)

CWE-113 — HTTP Response Splitting

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-3911?: CVE-2018-3911 is a high-severity vulnerability in Samsung, classified under HTTP Response Splitting. CVSS score: 8.6/10. Published 2018-08-23.
How severe is CVE-2018-3911?: High severity. CVSS v3 base score is 8.6 out of 10.