CVE-2017-14730

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.

Published: 2017-09-25 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-14730 is rated Low Risk (34.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.04%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-14730

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.09% 0.04% -0.04%
2 2025-03-29 0.04% 0.09% +0.04%
3 2023-03-07 — 0.04% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-14730

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.0 HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2017-14730

Affected software / configurations for CVE-2017-14730

Vendor Product Version Raw CPE
elasticsearch logstash 5.0.0 cpe:2.3:a:elasticsearch:logstash:5.0.0:*:*:*:*:*:*:*
elasticsearch logstash 5.0.1 cpe:2.3:a:elasticsearch:logstash:5.0.1:*:*:*:*:*:*:*
elasticsearch logstash 5.0.2 cpe:2.3:a:elasticsearch:logstash:5.0.2:*:*:*:*:*:*:*
elasticsearch logstash 5.1.1 cpe:2.3:a:elasticsearch:logstash:5.1.1:*:*:*:*:*:*:*
elasticsearch logstash 5.1.2 cpe:2.3:a:elasticsearch:logstash:5.1.2:*:*:*:*:*:*:*
elasticsearch logstash 5.2.0 cpe:2.3:a:elasticsearch:logstash:5.2.0:*:*:*:*:*:*:*
elasticsearch logstash 5.2.1 cpe:2.3:a:elasticsearch:logstash:5.2.1:*:*:*:*:*:*:*
elasticsearch logstash 5.3.0 cpe:2.3:a:elasticsearch:logstash:5.3.0:*:*:*:*:*:*:*
elasticsearch logstash 5.3.1 cpe:2.3:a:elasticsearch:logstash:5.3.1:*:*:*:*:*:*:*
elasticsearch logstash 5.3.2 cpe:2.3:a:elasticsearch:logstash:5.3.2:*:*:*:*:*:*:*
elasticsearch logstash 5.4.1 cpe:2.3:a:elasticsearch:logstash:5.4.1:*:*:*:*:*:*:*
elasticsearch logstash 5.4.2 cpe:2.3:a:elasticsearch:logstash:5.4.2:*:*:*:*:*:*:*
elasticsearch logstash 5.4.3 cpe:2.3:a:elasticsearch:logstash:5.4.3:*:*:*:*:*:*:*
elasticsearch logstash 5.5.0 cpe:2.3:a:elasticsearch:logstash:5.5.0:*:*:*:*:*:*:*
elasticsearch logstash 5.5.1 cpe:2.3:a:elasticsearch:logstash:5.5.1:*:*:*:*:*:*:*
elasticsearch logstash 5.5.2 cpe:2.3:a:elasticsearch:logstash:5.5.2:*:*:*:*:*:*:*
elasticsearch logstash 5.6.0 cpe:2.3:a:elasticsearch:logstash:5.6.0:*:*:*:*:*:*:*

References for CVE-2017-14730

cvelogic Threat Intelligence