title: Authentication Bypass in OpenThread Boarder Router devices
description: There exists an authentication bypass vulnerability in OpenThread border router devices and implementations. This issue allows unauthenticated nodes to craft radio frames using “Key ID Mode 2”: a special mode using a static encryption key to bypass security checks, resulting in arbitrary IP packets being allowed on the Thread network.
This provides a pathway for an attacker to send/receive arbitrary IPv6 packets to devices on the LAN, potentially exploiting them if they lack additional authentication or contain any network vulnerabilities that would normally be mitigated by the home router’s NAT firewall. Effected devices have been mitigated through an automatic update beyond the affected range.
problem types: CWE-287 Improper Authentication
affected:
{
defaultStatus: unaffected
product: Nest Hub Max
vendor: Google
versions:
lessThan: 10.20221207.2.120, status: affected, version: 10.20221207.2.109, versionType: custom
}
{
defaultStatus: unaffected
product: Nest Hub (2nd. gen) w/ Sleep Tracking
vendor: Google
versions:
lessThan: 10.20221207.2.100042, status: affected, version: 10.20221207.2.100038, versionType: custom
}
{
defaultStatus: unaffected
product: Nest Wifi 6E
vendor: Google
versions:
lessThan: 1.63.355999, status: affected, version: 1.59, versionType: custom
}
{
defaultStatus: unaffected
product: Google Wifi (next gen)
vendor: Google
versions:
lessThan: 14150.882.9, status: affected, version: 14150.881.7, versionType: custom
}
{
defaultStatus: unaffected
product: Nest Wifi Point
vendor: Google
versions:
lessThan: 1.56.368671, status: affected, version: 1.56.1, versionType: custom
}
{
defaultStatus: unaffected
product: Nest Hub Max
vendor: Google
versions:
lessThan: 10.20221207.2.120, status: affected, version: 10.20221207.2.109, versionType: custom
}
{
defaultStatus: unaffected
product: Nest Hub (2nd. gen) w/ Sleep Tracking
vendor: Google
versions:
lessThan: 10.20221207.2.100042, status: affected, version: 10.20221207.2.100038 , versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: ADJACENT_NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL