Vulnerability CVE-2017-14730
Published: 2017-09-25

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.

Type:

CWE-732

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Elasticsearch -> Logstash 

 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
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