CVE-2017-18018

CVSS V2 Low 1.9 CVSS V3 Medium 4.7

Description

In GNU Coreutils through 8.29, chown-core.c in chown and chgrp does not prevent replacement of a plain file with a symlink during use of the POSIX "-R -L" options, which allows local users to modify the ownership of arbitrary files by leveraging a race condition.

Overview

CVE ID
CVE-2017-18018

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2018-01-04T04:29:00

Last Modified Date
2018-01-19T15:46:46

Weakness Enumerations

CWE	URL
CWE-362	http://cwe.mitre.org/data/definitions/362.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:gnu:coreutils::::::::	1	OR		8.29

CVSS Version 2

Version
2.0

Vector String
AV:L/AC:M/Au:N/C:N/I:P/A:N

Access Vector
LOCAL

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
PARTIAL

Availability Impact
NONE

Base Score
1.9

Severity
LOW

Exploitability Score
3.4

Impact Score
2.9

CVSS Version 3

Version
3.0

Vector String
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector
LOCAL

Attack Compatibility
HIGH

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
NONE

Base Score
4.7

Base Severity
MEDIUM

Exploitability Score
1

Impact Score
3.6

References

Reference URL	Reference Tags
http://lists.gnu.org/archive/html/coreutils/2017-12/msg00045.html	Exploit Issue Tracking Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2017-18018
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18018

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 18:49:39				Added to TrackCVE
2022-12-03 00:37:21	2018-01-04T04:29Z	2018-01-04T04:29:00	CVE Published Date	updated
2022-12-03 00:37:21		2018-01-19T15:46:46	CVE Modified Date	updated
2022-12-03 00:37:21		Analyzed	Vulnerability Status	updated