UBUNTU-CVE-2021-32739

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Source
https://ubuntu.com/security/CVE-2021-32739
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32739.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-32739
Related
Published
2021-07-15T15:15:00Z
Modified
2024-10-15T14:08:09Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. From version 2.4.0 through version 2.12.4, a vulnerability exists that may allow privilege escalation for authenticated API users. With a read-ony user's credentials, an attacker can view most attributes of all config objects including ticket_salt of ApiListener. This salt is enough to compute a ticket for every possible common name (CN). A ticket, the master node's certificate, and a self-signed certificate are enough to successfully request the desired certificate from Icinga. That certificate may in turn be used to steal an endpoint or API user's identity. Versions 2.12.5 and 2.11.10 both contain a fix the vulnerability. As a workaround, one may either specify queryable types explicitly or filter out ApiListener objects.

References

Affected packages

Ubuntu:Pro:16.04:LTS / icinga2

Package

Name
icinga2
Purl
pkg:deb/ubuntu/icinga2?arch=src?distro=esm-apps/xenial

Affected ranges

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

Affected versions

2.*

2.3.8-1build1
2.3.11-1
2.4.0-1
2.4.1-1
2.4.1-2
2.4.1-2ubuntu1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / icinga2

Package

Name
icinga2
Purl
pkg:deb/ubuntu/icinga2?arch=src?distro=esm-apps/bionic

Affected ranges

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

Affected versions

2.*

2.7.0-1
2.8.1-0ubuntu2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / icinga2

Package

Name
icinga2
Purl
pkg:deb/ubuntu/icinga2?arch=src?distro=focal

Affected ranges

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

Affected versions

2.*

2.10.5-1build1
2.11.2-1
2.11.2-1ubuntu1
2.11.2-1ubuntu2
2.11.2-1ubuntu3

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / icinga2

Package

Name
icinga2
Purl
pkg:deb/ubuntu/icinga2?arch=src?distro=jammy

Affected ranges

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

Affected versions

2.*

2.12.3-1
2.13.1-1
2.13.2-1
2.13.2-1build1
2.13.2-1build2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / icinga2

Package

Name
icinga2
Purl
pkg:deb/ubuntu/icinga2?arch=src?distro=oracular

Affected ranges

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

Affected versions

2.*

2.14.2-1build2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / icinga2

Package

Name
icinga2
Purl
pkg:deb/ubuntu/icinga2?arch=src?distro=noble

Affected ranges

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

Affected versions

2.*

2.13.8-1
2.14.1-1
2.14.2-1
2.14.2-1build1
2.14.2-1build2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}