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VULNERABILITY

Alpine Linux: CVE-2021-37698: Improper Certificate Validation

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Alpine Linux: CVE-2021-37698: Improper Certificate Validation

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
08/19/2021
Created
08/23/2024
Added
08/22/2024
Modified
10/02/2024

Description

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.

Solution(s)

  • alpine-linux-upgrade-icinga2

References

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