CVE-2021-32739

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-32739
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32739.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-32739
Aliases
  • GHSA-98wp-jc6q-x5q5
Related
Published
2021-07-15T15:15:08Z
Modified
2024-11-16T00:47:11.154829Z
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

Debian:11 / icinga2

Package

Name
icinga2
Purl
pkg:deb/debian/icinga2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.12.3-1+deb11u1

Affected versions

2.*

2.12.3-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / icinga2

Package

Name
icinga2
Purl
pkg:deb/debian/icinga2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.12.5-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / icinga2

Package

Name
icinga2
Purl
pkg:deb/debian/icinga2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.12.5-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}