An inaccurate frame deduplication process in ChirpStack Network Server 3.9.0 allows a malicious gateway to perform uplink Denial of Service via malformed frequency attributes in CollectAndCallOnceCollect in internal/uplink/collect.go. NOTE: the vendor's position is that there are no "guarantees that allowing untrusted LoRa gateways to the network should still result in a secure network.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | 2.8 | 3.6 |
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-20,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| chirpstack | network_server | 3.9.0 |
The Kerlink firewall in ChirpStack chirpstack-mqtt-forwarder before 4.2.1 and chirpstack-gateway-bridge before 4.0.11 wrongly accepts certain TCP packets when a connection is not in the ESTABLISHED state.
Products Affected
| Vendor | Product | Version |
|---|---|---|
| chirpstack | gateway_bridge | * |
| chirpstack | mqtt_forwarder | * |