CVE-2021-37698
Published: 19 August 2021
Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. In versions 2.5.0 through 2.13.0, ElasticsearchWriter, GelfWriter, InfluxdbWriter and Influxdb2Writer do not verify the server's certificate despite a certificate authority being specified. Icinga 2 instances which connect to any of the mentioned time series databases (TSDBs) using TLS over a spoofable infrastructure should immediately upgrade to version 2.13.1, 2.12.6, or 2.11.11 to patch the issue. Such instances should also change the credentials (if any) used by the TSDB writer feature to authenticate against the TSDB. There are no workarounds aside from upgrading.
Priority
Status
Package | Release | Status |
---|---|---|
icinga2 Launchpad, Ubuntu, Debian |
focal |
Needs triage
|
jammy |
Needs triage
|
|
lunar |
Not vulnerable
(2.13.5-1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(2.13.1-1)
|
|
kinetic |
Ignored
(end of life, was needs-triage)
|
|
bionic |
Needs triage
|
|
hirsute |
Ignored
(end of life)
|
|
impish |
Ignored
(end of life)
|
|
xenial |
Needs triage
|
|
mantic |
Not vulnerable
(2.13.5-1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37698
- https://github.com/Icinga/icinga2/security/advisories/GHSA-cxfm-8j5v-5qr2
- https://icinga.com/blog/2021/08/19/icinga-2-13-1-security-release/
- https://github.com/Icinga/icinga2/releases/tag/v2.13.1
- https://github.com/Icinga/icinga2/releases/tag/v2.12.6
- https://github.com/Icinga/icinga2/releases/tag/v2.11.11
- NVD
- Launchpad
- Debian