CVE-2017-14730

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-09-25 · updated 2026-06-17
Weakness: CWE-732

Description

The init script in the Gentoo app-admin/logstash-bin package before 5.5.3 and 5.6.x before 5.6.1 has "chown -R" calls for user-writable directory trees, which allows local users to gain privileges by leveraging access to a $LS_USER account for creation of a hard link.

Affected products

Elasticsearch Logstash: 5.0.0, 5.0.1, 5.0.2, 5.1.1, 5.1.2, 5.2.0 (+11)

References

https://bugs.gentoo.org/628558
https://github.com/gentoo/gentoo/pull/5665
https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=18f97c851c209f291b31ae7a902719f1c17c79fa
https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=bbd6cb398c1740c68e9b1b78340c887c58c1fbda
https://bugs.gentoo.org/628558
https://github.com/gentoo/gentoo/pull/5665
https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=18f97c851c209f291b31ae7a902719f1c17c79fa
https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=bbd6cb398c1740c68e9b1b78340c887c58c1fbda

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