Improper input validation in Chirpstack Network Server
CVE-2020-28349
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.022 (81.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Chirpstack Network Server — versions 3.9.0
Weakness classification (CWE)
References
- github.com/brocaar/chirpstack-network-server/commit/f996bb0c6c85281b5658f59ff09… (Patch, Third Party Advisory)
- github.com/brocaar/chirpstack-network-server/commit/874fc1a9b01045ebe8a340f0bb0… (Patch, Third Party Advisory)
- www.cyberark.com/resources/threat-research-blog/lorawan-mqtt-what-to-know-when-… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-28349?
- CVE-2020-28349 is a medium-severity vulnerability in Chirpstack Network Server, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2020-11-09.
- How severe is CVE-2020-28349?
- Medium severity. CVSS v3 base score is 6.5 out of 10.