CVE-2020-14004 — Link Following in Icinga

CWE-59 — Link Following5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.2%
top 54.85%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Icinga Icinga2IcingaOpensuse Backports SLE+1 more
Timeline
PublishedJun 12
Latest updateMay 24

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 vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶Debianicinga/icinga2< 2.11.5-1+3
▶NVDicinga/icinga2.0.0 — 2.11.3+1
▶NVDopensuse/leap15.1, 15.2+1

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-xqhq-m8mv-g9wp: An issue was discovered in Icinga2 before v2↗2022-05-24
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CVEList
CVE-2020-14004: An issue was discovered in Icinga2 before v2↗2020-06-12
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OSV
CVE-2020-14004: An issue was discovered in Icinga2 before v2↗2020-06-12
▶

📋Vendor Advisories

1
Debian
CVE-2020-14004: icinga2 - An issue was discovered in Icinga2 before v2.12.0-rc1. The prepare-dirs script (...↗2020
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CVE-2020-14004 — Link Following in Icinga | cvebase