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GitHub_MCVE-2021-37698

HistoryAug 19, 2021 - 4:15 p.m.

CVE-2021-37698

2021-08-1916:15:12

CWE-295

GitHub_M

web.nvd.nist.gov

icinga

monitoring system

cve-2021-37698

network resources

tls certificate validation

vulnerability

elasticsearchwriter

gelfwriter

influxdbwriter

influxdb2writer

time series databases

tsdbs

infrastructure

upgrade

patch

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

AI Score

7.5

Confidence

High

EPSS

0.003

Percentile

71.5%

JSON

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.

Affected configurations

Nvd

Vulners

Node

icingaicingaRange2.5.0–2.11.10

icingaicingaRange2.12.0–2.12.6

icingaicingaRange2.13.0–2.13.1

Node

debiandebian_linuxMatch9.0

VendorProductVersionCPE
icingaicinga*cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
icinga	icinga	*	cpe:2.3:a:icinga:icinga::::::::
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*

CNA Affected

[
  {
    "product": "icinga2",
    "vendor": "Icinga",
    "versions": [
      {
        "status": "affected",
        "version": ">= 2.5.0, <= 2.13.0"
      }
    ]
  }
]