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Vulnerability record · CVE-2020-14004 · published 12 June 2020

CVE-2020-14004: Icinga link following vulnerability

Icinga · Icinga

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.

7.8 CVSS 3.1 High EPSS 0.74% · top 47.3% CWE-59 · Link following
7.8CVSS 3.1 base score, v2 4.6
0.74%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
12References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00014.html Broken LinkMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/06/12/1 ExploitMailing ListThird Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-14004 Broken LinkIssue Tracking
https://github.com/Icinga/icinga2/compare/v2.12.0-rc1...master Third Party Advisory
https://github.com/Icinga/icinga2/pull/8045/commits/2f0f2e8c355b75fa4407d23f85feea037d2bc4b6 PatchThird Party Advisory
https://github.com/Icinga/icinga2/releases Release NotesThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00014.html Broken LinkMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/06/12/1 ExploitMailing ListThird Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-14004 Broken LinkIssue Tracking
https://github.com/Icinga/icinga2/compare/v2.12.0-rc1...master Third Party Advisory
https://github.com/Icinga/icinga2/pull/8045/commits/2f0f2e8c355b75fa4407d23f85feea037d2bc4b6 PatchThird Party Advisory
https://github.com/Icinga/icinga2/releases Release NotesThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-14004), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.