Description
An issue was discovered in Icinga2 before v2.12.0-rc1. The prepare-dirs script (run as part of the icinga2 systemd service) executes chmod 2750 /run/icinga2/cmd. /run/icinga2 is under control of an unprivileged user by default. If /run/icinga2/cmd is a symlink, then it will by followed and arbitrary files can be changed to mode 2750 by the unprivileged icinga2 user.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | icinga2 | 2.11.5-1 | — |
| Debian 13 | icinga2 | 2.11.5-1 | — |
| Debian 12 | icinga2 | 2.11.5-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | icinga2 | No fix yet | — |
| Ubuntu 26.04 LTS | icinga2 | No fix yet | — |
| Ubuntu 25.10 | icinga2 | No fix yet | — |
| Ubuntu 24.04 LTS | icinga2 | No fix yet | — |
| Ubuntu 22.04 LTS | icinga2 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | icinga2 | No fix yet | — |
| Ubuntu 18.04 LTS | icinga2 | No fix yet | — |
| Ubuntu 16.04 LTS | icinga2 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | icinga2 | 2.8.2-3.6.1 | SUSE-SU-2022:3725-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP2 | icinga2 | 2.12.1-bp152.4.3.1 | openSUSE-SU-2020:1820-1 |
| SUSE Package Hub 15 SP1 | icinga2 | 2.12.1-bp152.4.3.1 | openSUSE-SU-2020:1820-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | icinga2 | 2.13.1-1.3 | openSUSE-SU-2024:10856-1 |
| openSUSE Leap 15.2 | icinga2 | 2.12.1-bp152.4.3.1 | openSUSE-SU-2020:1820-1 |
| openSUSE Leap 15.1 | icinga2 | 2.12.1-bp152.4.3.1 | openSUSE-SU-2020:1820-1 |
Advisories 3
- openSUSE-SU-2024:10856-1 icinga2-2.13.1-1.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1820-1 Security update for icinga2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3725-1 Security update for icinga2 SUSE / openSUSE Security Updates · May 2, 2025
References
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-14004
- https://github.com/Icinga/icinga2/pull/8045/commits/2f0f2e8c355b75fa4407d23f85feea037d2bc4b6
- https://github.com/Icinga/icinga2/releases
- http://www.openwall.com/lists/oss-security/2020/06/12/1
- https://github.com/Icinga/icinga2/compare/v2.12.0-rc1...master
- openSUSE-SU-2020:1820 vendor-advisory