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.

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)

EPSS: 0.022 (80.5th percentile) — read the EPSS interpretation.

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.

Affected products

Chirpstack Network_server — versions 3.9.0
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

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.