Search criteria
90 vulnerabilities found for icinga by icinga
FKIE_CVE-2025-61909
Vulnerability from fkie_nvd - Published: 2025-10-16 18:15 - Updated: 2025-10-29 20:03
Severity ?
Summary
Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, the safe-reload script (also used during systemctl reload icinga2) and logrotate configuration shipped with Icinga 2 read the PID of the main Icinga 2 process from a PID file writable by the daemon user, but send the signal as the root user. This can allow the Icinga user to send signals to processes it would otherwise not permitted to. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.
References
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FKIE_CVE-2025-61907
Vulnerability from fkie_nvd - Published: 2025-10-16 18:15 - Updated: 2025-11-26 15:04
Severity ?
Summary
Icinga 2 is an open source monitoring system. In Icinga 2 versions 2.4 through 2.15.0, filter expressions provided to the various /v1/objects endpoints could access variables or objects that would otherwise be inaccessible for the user. This allows authenticated API users to learn information that should be hidden from them, including global variables not permitted by the variables permission and objects not permitted by the corresponding objects/query permissions. The vulnerability is fixed in versions 2.15.1, 2.14.7, and 2.13.13.
References
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FKIE_CVE-2025-61908
Vulnerability from fkie_nvd - Published: 2025-10-16 18:15 - Updated: 2025-11-26 14:57
Severity ?
Summary
Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, when creating an invalid reference, such as a reference to null, dereferencing results in a segmentation fault. This can be used by any API user with access to an API endpoint that allows specifying a filter expression to crash the Icinga 2 daemon. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.
References
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FKIE_CVE-2025-48057
Vulnerability from fkie_nvd - Published: 2025-05-27 17:15 - Updated: 2025-12-05 00:12
Severity ?
Summary
Icinga 2 is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. Prior to versions 2.12.12, 2.13.12, and 2.14.6, the VerifyCertificate() function can be tricked into incorrectly treating certificates as valid. This allows an attacker to send a malicious certificate request that is then treated as a renewal of an already existing certificate, resulting in the attacker obtaining a valid certificate that can be used to impersonate trusted nodes. This only occurs when Icinga 2 is built with OpenSSL older than version 1.1.0. This issue has been patched in versions 2.12.12, 2.13.12, and 2.14.6.
References
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FKIE_CVE-2024-49369
Vulnerability from fkie_nvd - Published: 2024-11-12 17:15 - Updated: 2025-11-26 13:01
Severity ?
Summary
Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. The TLS certificate validation in all Icinga 2 versions starting from 2.4.0 was flawed, allowing an attacker to impersonate both trusted cluster nodes as well as any API users that use TLS client certificates for authentication (ApiUser objects with the client_cn attribute set). This vulnerability has been fixed in v2.14.3, v2.13.10, v2.12.11, and v2.11.12.
References
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FKIE_CVE-2024-24820
Vulnerability from fkie_nvd - Published: 2024-02-09 00:15 - Updated: 2024-11-21 08:59
Severity ?
8.3 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L
8.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
8.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Summary
Icinga Director is a tool designed to make Icinga 2 configuration handling easy. Not any of Icinga Director's configuration forms used to manipulate the monitoring environment are protected against cross site request forgery (CSRF). It enables attackers to perform changes in the monitoring environment managed by Icinga Director without the awareness of the victim. Users of the map module in version 1.x, should immediately upgrade to v2.0. The mentioned XSS vulnerabilities in Icinga Web are already fixed as well and upgrades to the most recent release of the 2.9, 2.10 or 2.11 branch must be performed if not done yet. Any later major release is also suitable. Icinga Director will receive minor updates to the 1.8, 1.9, 1.10 and 1.11 branches to remedy this issue. Upgrade immediately to a patched release. If that is not feasible, disable the director module for the time being.
References
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FKIE_CVE-2021-37698
Vulnerability from fkie_nvd - Published: 2021-08-19 16:15 - Updated: 2025-11-03 22:15
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
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
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"id": "CVE-2021-37698",
"lastModified": "2025-11-03T22:15:49.987",
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FKIE_CVE-2021-32743
Vulnerability from fkie_nvd - Published: 2021-07-15 16:15 - Updated: 2025-11-03 22:15
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. In versions prior to 2.11.10 and from version 2.12.0 through version 2.12.4, some of the Icinga 2 features that require credentials for external services expose those credentials through the API to authenticated API users with read permissions for the corresponding object types. IdoMysqlConnection and IdoPgsqlConnection (every released version) exposes the password of the user used to connect to the database. IcingaDB (added in 2.12.0) exposes the password used to connect to the Redis server. ElasticsearchWriter (added in 2.8.0)exposes the password used to connect to the Elasticsearch server. An attacker who obtains these credentials can impersonate Icinga to these services and add, modify and delete information there. If credentials with more permissions are in use, this increases the impact accordingly. Starting with the 2.11.10 and 2.12.5 releases, these passwords are no longer exposed via the API. As a workaround, API user permissions can be restricted to not allow querying of any affected objects, either by explicitly listing only the required object types for object query permissions, or by applying a filter rule.
References
| URL | Tags | ||
|---|---|---|---|
| security-advisories@github.com | https://github.com/Icinga/icinga2/security/advisories/GHSA-wrpw-pmr8-qgj7 | Exploit, Third Party Advisory | |
| security-advisories@github.com | https://icinga.com/blog/2021/07/15/releasing-icinga-2-12-5-and-2-11-10/ | Exploit, Vendor Advisory | |
| security-advisories@github.com | https://lists.debian.org/debian-lts-announce/2021/11/msg00010.html | Mailing List, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/Icinga/icinga2/security/advisories/GHSA-wrpw-pmr8-qgj7 | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://icinga.com/blog/2021/07/15/releasing-icinga-2-12-5-and-2-11-10/ | Exploit, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.debian.org/debian-lts-announce/2021/11/msg00010.html | Mailing List, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.debian.org/debian-lts-announce/2024/11/msg00010.html |
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FKIE_CVE-2021-32739
Vulnerability from fkie_nvd - Published: 2021-07-15 15:15 - Updated: 2025-11-03 22:15
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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
| URL | Tags | ||
|---|---|---|---|
| security-advisories@github.com | https://github.com/Icinga/icinga2/security/advisories/GHSA-98wp-jc6q-x5q5 | Exploit, Third Party Advisory | |
| security-advisories@github.com | https://icinga.com/blog/2021/07/02/releasing-icinga-2-12-5-2-11-10/ | Broken Link, Vendor Advisory | |
| security-advisories@github.com | https://lists.debian.org/debian-lts-announce/2021/11/msg00010.html | Mailing List, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/Icinga/icinga2/security/advisories/GHSA-98wp-jc6q-x5q5 | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://icinga.com/blog/2021/07/02/releasing-icinga-2-12-5-2-11-10/ | Broken Link, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.debian.org/debian-lts-announce/2021/11/msg00010.html | Mailing List, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.debian.org/debian-lts-announce/2024/11/msg00010.html |
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}
],
"id": "CVE-2021-32739",
"lastModified": "2025-11-03T22:15:48.327",
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},
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FKIE_CVE-2021-32746
Vulnerability from fkie_nvd - Published: 2021-07-12 23:15 - Updated: 2024-11-21 06:07
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. Between versions 2.3.0 and 2.8.2, the `doc` module of Icinga Web 2 allows to view documentation directly in the UI. It must be enabled manually by an administrator and users need explicit access permission to use it. Then, by visiting a certain route, it is possible to gain access to arbitrary files readable by the web-server user. The issue has been fixed in the 2.9.0, 2.8.3, and 2.7.5 releases. As a workaround, an administrator may disable the `doc` module or revoke permission to use it from all users.
References
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FKIE_CVE-2021-32747
Vulnerability from fkie_nvd - Published: 2021-07-12 23:15 - Updated: 2024-11-21 06:07
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
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
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CVE-2025-61909 (GCVE-0-2025-61909)
Vulnerability from cvelistv5 – Published: 2025-10-16 17:20 – Updated: 2025-10-16 19:23
VLAI?
Title
Icinga 2 signals sent as root to processes based on PID file written by the Icinga 2 daemon user
Summary
Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, the safe-reload script (also used during systemctl reload icinga2) and logrotate configuration shipped with Icinga 2 read the PID of the main Icinga 2 process from a PID file writable by the daemon user, but send the signal as the root user. This can allow the Icinga user to send signals to processes it would otherwise not permitted to. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.
Severity ?
CWE
- CWE-250 - Execution with Unnecessary Privileges
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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}
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},
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CVE-2025-61908 (GCVE-0-2025-61908)
Vulnerability from cvelistv5 – Published: 2025-10-16 17:16 – Updated: 2025-10-16 19:23
VLAI?
Title
Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference
Summary
Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, when creating an invalid reference, such as a reference to null, dereferencing results in a segmentation fault. This can be used by any API user with access to an API endpoint that allows specifying a filter expression to crash the Icinga 2 daemon. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.
Severity ?
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
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CVE-2025-61907 (GCVE-0-2025-61907)
Vulnerability from cvelistv5 – Published: 2025-10-16 17:11 – Updated: 2025-10-16 19:23
VLAI?
Title
Icinga 2 API users could access restricted values in filter expressions
Summary
Icinga 2 is an open source monitoring system. In Icinga 2 versions 2.4 through 2.15.0, filter expressions provided to the various /v1/objects endpoints could access variables or objects that would otherwise be inaccessible for the user. This allows authenticated API users to learn information that should be hidden from them, including global variables not permitted by the variables permission and objects not permitted by the corresponding objects/query permissions. The vulnerability is fixed in versions 2.15.1, 2.14.7, and 2.13.13.
Severity ?
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
{
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}
],
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CVE-2025-48057 (GCVE-0-2025-48057)
Vulnerability from cvelistv5 – Published: 2025-05-27 16:32 – Updated: 2025-05-27 18:27
VLAI?
Title
Icinga 2 certificate renewal might incorrectly renew an invalid certificate
Summary
Icinga 2 is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. Prior to versions 2.12.12, 2.13.12, and 2.14.6, the VerifyCertificate() function can be tricked into incorrectly treating certificates as valid. This allows an attacker to send a malicious certificate request that is then treated as a renewal of an already existing certificate, resulting in the attacker obtaining a valid certificate that can be used to impersonate trusted nodes. This only occurs when Icinga 2 is built with OpenSSL older than version 1.1.0. This issue has been patched in versions 2.12.12, 2.13.12, and 2.14.6.
Severity ?
CWE
- CWE-296 - Improper Following of a Certificate's Chain of Trust
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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],
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}
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CVE-2024-49369 (GCVE-0-2024-49369)
Vulnerability from cvelistv5 – Published: 2024-11-12 16:44 – Updated: 2025-11-03 22:22
VLAI?
Title
Icinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections
Summary
Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. The TLS certificate validation in all Icinga 2 versions starting from 2.4.0 was flawed, allowing an attacker to impersonate both trusted cluster nodes as well as any API users that use TLS client certificates for authentication (ApiUser objects with the client_cn attribute set). This vulnerability has been fixed in v2.14.3, v2.13.10, v2.12.11, and v2.11.12.
Severity ?
9.8 (Critical)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
{
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CVE-2024-24820 (GCVE-0-2024-24820)
Vulnerability from cvelistv5 – Published: 2024-02-09 00:00 – Updated: 2025-06-17 21:29
VLAI?
Title
Icinga Director configuration is susceptible to Cross-Site Request Forgery
Summary
Icinga Director is a tool designed to make Icinga 2 configuration handling easy. Not any of Icinga Director's configuration forms used to manipulate the monitoring environment are protected against cross site request forgery (CSRF). It enables attackers to perform changes in the monitoring environment managed by Icinga Director without the awareness of the victim. Users of the map module in version 1.x, should immediately upgrade to v2.0. The mentioned XSS vulnerabilities in Icinga Web are already fixed as well and upgrades to the most recent release of the 2.9, 2.10 or 2.11 branch must be performed if not done yet. Any later major release is also suitable. Icinga Director will receive minor updates to the 1.8, 1.9, 1.10 and 1.11 branches to remedy this issue. Upgrade immediately to a patched release. If that is not feasible, disable the director module for the time being.
Severity ?
8.3 (High)
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Icinga | icingaweb2-module-director |
Affected:
>=1.0.0, < 1.8.2
Affected: >= 1.9.0, < 1.9.2 Affected: >= 1.10.0, < 1.10.3 Affected: >= 1.11.0, < 1.11.1 |
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CVE-2021-37698 (GCVE-0-2021-37698)
Vulnerability from cvelistv5 – Published: 2021-08-19 13:55 – Updated: 2025-11-03 21:45
VLAI?
Title
Missing TLS service certificate validation in GelfWriter, ElasticsearchWriter, InfluxdbWriter and Influxdb2Writer
Summary
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.
Severity ?
7.5 (High)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2021-32743 (GCVE-0-2021-32743)
Vulnerability from cvelistv5 – Published: 2021-07-15 16:05 – Updated: 2025-11-03 21:44
VLAI?
Title
Passwords used to access external services inadvertently exposed through API
Summary
Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. In versions prior to 2.11.10 and from version 2.12.0 through version 2.12.4, some of the Icinga 2 features that require credentials for external services expose those credentials through the API to authenticated API users with read permissions for the corresponding object types. IdoMysqlConnection and IdoPgsqlConnection (every released version) exposes the password of the user used to connect to the database. IcingaDB (added in 2.12.0) exposes the password used to connect to the Redis server. ElasticsearchWriter (added in 2.8.0)exposes the password used to connect to the Elasticsearch server. An attacker who obtains these credentials can impersonate Icinga to these services and add, modify and delete information there. If credentials with more permissions are in use, this increases the impact accordingly. Starting with the 2.11.10 and 2.12.5 releases, these passwords are no longer exposed via the API. As a workaround, API user permissions can be restricted to not allow querying of any affected objects, either by explicitly listing only the required object types for object query permissions, or by applying a filter rule.
Severity ?
8.8 (High)
CWE
- CWE-202 - Exposure of Sensitive Information Through Data Queries
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
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CVE-2021-32739 (GCVE-0-2021-32739)
Vulnerability from cvelistv5 – Published: 2021-07-15 14:55 – Updated: 2025-11-03 21:44
VLAI?
Title
Results of queries for ApiListener objects include the ticket salt which allows in turn to steal (more privileged) identities
Summary
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.
Severity ?
8.8 (High)
CWE
- CWE-267 - Privilege Defined With Unsafe Actions
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2021-32747 (GCVE-0-2021-32747)
Vulnerability from cvelistv5 – Published: 2021-07-12 22:50 – Updated: 2024-08-03 23:33
VLAI?
Title
Custom variable protection and blacklists can be circumvented
Summary
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.
Severity ?
5.3 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Icinga | icingaweb2 |
Affected:
>= 2.0.0, <= 2.8.2
|
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}
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},
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CVE-2025-61909 (GCVE-0-2025-61909)
Vulnerability from nvd – Published: 2025-10-16 17:20 – Updated: 2025-10-16 19:23
VLAI?
Title
Icinga 2 signals sent as root to processes based on PID file written by the Icinga 2 daemon user
Summary
Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, the safe-reload script (also used during systemctl reload icinga2) and logrotate configuration shipped with Icinga 2 read the PID of the main Icinga 2 process from a PID file writable by the daemon user, but send the signal as the root user. This can allow the Icinga user to send signals to processes it would otherwise not permitted to. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.
Severity ?
CWE
- CWE-250 - Execution with Unnecessary Privileges
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
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CVE-2025-61908 (GCVE-0-2025-61908)
Vulnerability from nvd – Published: 2025-10-16 17:16 – Updated: 2025-10-16 19:23
VLAI?
Title
Icinga 2 Denial of Service (DoS) By Dereferencing Invalid Reference
Summary
Icinga 2 is an open source monitoring system. From 2.10.0 to before 2.15.1, 2.14.7, and 2.13.13, when creating an invalid reference, such as a reference to null, dereferencing results in a segmentation fault. This can be used by any API user with access to an API endpoint that allows specifying a filter expression to crash the Icinga 2 daemon. A fix is included in the following Icinga 2 versions: 2.15.1, 2.14.7, and 2.13.13.
Severity ?
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
{
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],
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},
{
"name": "https://github.com/Icinga/icinga2/pull/6521",
"tags": [
"x_refsource_MISC"
],
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},
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"name": "https://icinga.com/blog/releasing-icinga-2-v2-15-1-2-14-7-and-2-13-13-and-icinga-db-web-v1-2-3-and-1-1-4",
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}
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},
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CVE-2025-61907 (GCVE-0-2025-61907)
Vulnerability from nvd – Published: 2025-10-16 17:11 – Updated: 2025-10-16 19:23
VLAI?
Title
Icinga 2 API users could access restricted values in filter expressions
Summary
Icinga 2 is an open source monitoring system. In Icinga 2 versions 2.4 through 2.15.0, filter expressions provided to the various /v1/objects endpoints could access variables or objects that would otherwise be inaccessible for the user. This allows authenticated API users to learn information that should be hidden from them, including global variables not permitted by the variables permission and objects not permitted by the corresponding objects/query permissions. The vulnerability is fixed in versions 2.15.1, 2.14.7, and 2.13.13.
Severity ?
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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"description": "CWE-204: Observable Response Discrepancy",
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}
]
},
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]
}
],
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],
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CVE-2025-48057 (GCVE-0-2025-48057)
Vulnerability from nvd – Published: 2025-05-27 16:32 – Updated: 2025-05-27 18:27
VLAI?
Title
Icinga 2 certificate renewal might incorrectly renew an invalid certificate
Summary
Icinga 2 is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. Prior to versions 2.12.12, 2.13.12, and 2.14.6, the VerifyCertificate() function can be tricked into incorrectly treating certificates as valid. This allows an attacker to send a malicious certificate request that is then treated as a renewal of an already existing certificate, resulting in the attacker obtaining a valid certificate that can be used to impersonate trusted nodes. This only occurs when Icinga 2 is built with OpenSSL older than version 1.1.0. This issue has been patched in versions 2.12.12, 2.13.12, and 2.14.6.
Severity ?
CWE
- CWE-296 - Improper Following of a Certificate's Chain of Trust
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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},
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},
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"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-05-27T18:20:40.298192Z",
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},
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}
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CVE-2024-49369 (GCVE-0-2024-49369)
Vulnerability from nvd – Published: 2024-11-12 16:44 – Updated: 2025-11-03 22:22
VLAI?
Title
Icinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections
Summary
Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. The TLS certificate validation in all Icinga 2 versions starting from 2.4.0 was flawed, allowing an attacker to impersonate both trusted cluster nodes as well as any API users that use TLS client certificates for authentication (ApiUser objects with the client_cn attribute set). This vulnerability has been fixed in v2.14.3, v2.13.10, v2.12.11, and v2.11.12.
Severity ?
9.8 (Critical)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
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CVE-2024-24820 (GCVE-0-2024-24820)
Vulnerability from nvd – Published: 2024-02-09 00:00 – Updated: 2025-06-17 21:29
VLAI?
Title
Icinga Director configuration is susceptible to Cross-Site Request Forgery
Summary
Icinga Director is a tool designed to make Icinga 2 configuration handling easy. Not any of Icinga Director's configuration forms used to manipulate the monitoring environment are protected against cross site request forgery (CSRF). It enables attackers to perform changes in the monitoring environment managed by Icinga Director without the awareness of the victim. Users of the map module in version 1.x, should immediately upgrade to v2.0. The mentioned XSS vulnerabilities in Icinga Web are already fixed as well and upgrades to the most recent release of the 2.9, 2.10 or 2.11 branch must be performed if not done yet. Any later major release is also suitable. Icinga Director will receive minor updates to the 1.8, 1.9, 1.10 and 1.11 branches to remedy this issue. Upgrade immediately to a patched release. If that is not feasible, disable the director module for the time being.
Severity ?
8.3 (High)
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Icinga | icingaweb2-module-director |
Affected:
>=1.0.0, < 1.8.2
Affected: >= 1.9.0, < 1.9.2 Affected: >= 1.10.0, < 1.10.3 Affected: >= 1.11.0, < 1.11.1 |
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CVE-2021-37698 (GCVE-0-2021-37698)
Vulnerability from nvd – Published: 2021-08-19 13:55 – Updated: 2025-11-03 21:45
VLAI?
Title
Missing TLS service certificate validation in GelfWriter, ElasticsearchWriter, InfluxdbWriter and Influxdb2Writer
Summary
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.
Severity ?
7.5 (High)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2021-32743 (GCVE-0-2021-32743)
Vulnerability from nvd – Published: 2021-07-15 16:05 – Updated: 2025-11-03 21:44
VLAI?
Title
Passwords used to access external services inadvertently exposed through API
Summary
Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. In versions prior to 2.11.10 and from version 2.12.0 through version 2.12.4, some of the Icinga 2 features that require credentials for external services expose those credentials through the API to authenticated API users with read permissions for the corresponding object types. IdoMysqlConnection and IdoPgsqlConnection (every released version) exposes the password of the user used to connect to the database. IcingaDB (added in 2.12.0) exposes the password used to connect to the Redis server. ElasticsearchWriter (added in 2.8.0)exposes the password used to connect to the Elasticsearch server. An attacker who obtains these credentials can impersonate Icinga to these services and add, modify and delete information there. If credentials with more permissions are in use, this increases the impact accordingly. Starting with the 2.11.10 and 2.12.5 releases, these passwords are no longer exposed via the API. As a workaround, API user permissions can be restricted to not allow querying of any affected objects, either by explicitly listing only the required object types for object query permissions, or by applying a filter rule.
Severity ?
8.8 (High)
CWE
- CWE-202 - Exposure of Sensitive Information Through Data Queries
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
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CVE-2021-32739 (GCVE-0-2021-32739)
Vulnerability from nvd – Published: 2021-07-15 14:55 – Updated: 2025-11-03 21:44
VLAI?
Title
Results of queries for ApiListener objects include the ticket salt which allows in turn to steal (more privileged) identities
Summary
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.
Severity ?
8.8 (High)
CWE
- CWE-267 - Privilege Defined With Unsafe Actions
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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"title": "Results of queries for ApiListener objects include the ticket salt which allows in turn to steal (more privileged) identities",
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"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2021-32739",
"STATE": "PUBLIC",
"TITLE": "Results of queries for ApiListener objects include the ticket salt which allows in turn to steal (more privileged) identities"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "icinga2",
"version": {
"version_data": [
{
"version_value": "\u003e= 2.4.0, \u003c= 2.12.4"
}
]
}
}
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"vendor_name": "Icinga"
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]
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"lang": "eng",
"value": "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\u0027s 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\u0027s 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\u0027s 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."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
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"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-267: Privilege Defined With Unsafe Actions"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/Icinga/icinga2/security/advisories/GHSA-98wp-jc6q-x5q5",
"refsource": "CONFIRM",
"url": "https://github.com/Icinga/icinga2/security/advisories/GHSA-98wp-jc6q-x5q5"
},
{
"name": "https://icinga.com/blog/2021/07/02/releasing-icinga-2-12-5-2-11-10/",
"refsource": "MISC",
"url": "https://icinga.com/blog/2021/07/02/releasing-icinga-2-12-5-2-11-10/"
},
{
"name": "[debian-lts-announce] 20211110 [SECURITY] [DLA 2816-1] icinga2 security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00010.html"
}
]
},
"source": {
"advisory": "GHSA-98wp-jc6q-x5q5",
"discovery": "UNKNOWN"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2021-32739",
"datePublished": "2021-07-15T14:55:11.000Z",
"dateReserved": "2021-05-12T00:00:00.000Z",
"dateUpdated": "2025-11-03T21:44:44.603Z",
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