SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-6402

An attacker must be able to set up a nearby SSID, similar to an "Evil Twin" attack.

HIGH 7.5EPSS 0.25%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Ecobee Ecobee4 4.2.0.171 devices can be forced to deauthenticate and connect to an unencrypted Wi-Fi network with the same SSID, even if the device settings specify use of encryption such as WPA2, as long as the competing network has a stronger signal. An attacker must be able to set up a nearby SSID, similar to an "Evil Twin" attack.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.25% probability · 16th percentile
CISA KEV
Not listed
Weakness
CWE-327
Affected
ecobee/ecobee4 firmware
Source
cve@mitre.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.