CVE-2021-32747

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-32747
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32747.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-32747
Aliases
  • GHSA-2xv9-886q-p7xx
Related
Published
2021-07-12T23:15:07Z
Modified
2024-10-12T07:36:57.501022Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

Icinga Web 2 is an open source monitoring web interface, framework, and command-line interface. A vulnerability in which custom variables are exposed to unauthorized users exists between versions 2.0.0 and 2.8.2. Custom variables are user-defined keys and values on configuration objects in Icinga 2. These are commonly used to reference secrets in other configurations such as check commands to be able to authenticate with a service being checked. Icinga Web 2 displays these custom variables to logged in users with access to said hosts or services. In order to protect the secrets from being visible to anyone, it's possible to setup protection rules and blacklists in a user's role. Protection rules result in *** being shown instead of the original value, the key will remain. Backlists will hide a custom variable entirely from the user. Besides using the UI, custom variables can also be accessed differently by using an undocumented URL parameter. By adding a parameter to the affected routes, Icinga Web 2 will show these columns additionally in the respective list. This parameter is also respected when exporting to JSON or CSV. Protection rules and blacklists however have no effect in this case. Custom variables are shown as-is in the result. The issue has been fixed in the 2.9.0, 2.8.3, and 2.7.5 releases. As a workaround, one may set up a restriction to hide hosts and services with the custom variable in question.

References

Affected packages

Debian:11 / icingaweb2

Package

Name
icingaweb2
Purl
pkg:deb/debian/icingaweb2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.8.2-2
2.8.3-1~exp1
2.8.4-1~exp1
2.8.4-1
2.8.5-1
2.9.3-1~exp1
2.9.3-1
2.9.4-1
2.9.5-1
2.9.6-1
2.10.0-1~exp1
2.10.1-1
2.10.2-1
2.11.0-1
2.11.0-2
2.11.0-3
2.11.0-4
2.11.1-1
2.11.2-1
2.11.2-2
2.11.3-1
2.11.4-1
2.11.4-2
2.11.4-3
2.12.0-1~exp1
2.12.0-1
2.12.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / icingaweb2

Package

Name
icingaweb2
Purl
pkg:deb/debian/icingaweb2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.8.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / icingaweb2

Package

Name
icingaweb2
Purl
pkg:deb/debian/icingaweb2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.8.4-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/icinga/icinga2

Affected ranges

Type
GIT
Repo
https://github.com/icinga/icinga2
Events
Introduced
06ed955cb5bcc51179f92fbbd20303428208827b
Fixed
292d71c43954bfbdcdab596520b6c0a3c7922ecd
Type
GIT
Repo
https://github.com/icinga/icingaweb2
Events
Introduced
ee1ee5af84d32c4493365959aa8a4322a34582e4
Fixed
18996270b264976adf18d20da557d0c2806217c5

Affected versions

v2.*

v2.8.0
v2.8.1
v2.8.2