National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-18018 Detail

Current 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.

Source:  MITRE      Last Modified:  01/03/2018      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-18018
Original release date:
01/03/2018
Last revised:
01/19/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
4.7 Medium
Vector:
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N (legend)
Impact Score:
3.6
Exploitability Score:
1.0
CVSS Version 3 Metrics:
Attack Vector (AV):
Local
Attack Complexity (AC):
High
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
High
Availability (A):
None
CVSS Severity (version 2.0):
CVSS v2 Base Score:
1.9 LOW
Vector:
(AV:L/AC:M/Au:N/C:N/I:P/A:N) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
3.4
CVSS Version 2 Metrics:
Access Vector:
Locally exploitable
Access Complexity:
Medium
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://lists.gnu.org/archive/html/coreutils/2017-12/msg00045.html Exploit; Issue Tracking; Third Party Advisory External Source MISC http://lists.gnu.org/archive/html/coreutils/2017-12/msg00045.html

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:gnu:coreutils:*:*:*:*:*:*:*:*    versions up to (including) 8.29

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History 1 change record found - show changes