Bugzilla – Bug 1189653
VUL-0: CVE-2021-37698: icinga2: Missing TLS server certificate validation in ElasticsearchWriter, GelfWriter, InfluxdbWriter and Influxdb2Writer
Last modified: 2022-08-12 10:56:32 UTC
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. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37698 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37698 https://github.com/Icinga/icinga2/releases/tag/v2.13.1 https://github.com/Icinga/icinga2/security/advisories/GHSA-cxfm-8j5v-5qr2 https://github.com/Icinga/icinga2/releases/tag/v2.12.6 https://github.com/Icinga/icinga2/releases/tag/v2.11.11
Affected packages: - SUSE:SLE-12-SP2:GA:Products:Update/icinga2 2.8.2 - openSUSE:Factory/icinga2 2.13.0
Upstream patches [0][1][2][3]. [0] https://github.com/Icinga/icinga2/commit/78aa348 [1] https://github.com/Icinga/icinga2/commit/037944a [2] https://github.com/Icinga/icinga2/commit/8da90d4 [3] https://github.com/Icinga/icinga2/commit/5c35ab5
As with bnc#1180147, reassigning to coldpool. SUSE:SLE-12-SP2:GA:Products:Update is tracked as affected.