title: Hills ComNav Inadequate Encryption Strength
description: Hills ComNav version 3002-19 suffers from a weak communication channel. Traffic across the local network for the configuration pages can be viewed by a malicious actor. The size of certain communications packets are predictable. This would allow an attacker to learn the state of the system if they can observe the traffic. This would be possible even if the traffic were encrypted, e.g., using WPA2, as the packet sizes would remain observable. The communication encryption scheme is theoretically sound, but is not strong enough for the level of protection required.
problem types: CWE-326 Inadequate Encryption Strength
affected:
{
product: ComNav
vendor: Interlogix
versions:
lessThanOrEqual: 3002-19, status: affected, version: All, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 6.2
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
version: 3.1
]
solutions: Carrier recommends users upgrade to Version 4000-12 or later, which is the latest supported version at the time of this publication.  Please contact the Hills distributor to acquire the firmware update.
More information on this issue can be found in Carrier product security advisory number CARR-PSA-002-1121.