High severity · published Jan 4, 2018
CVE-2017-18018
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…
7.1
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Coreutils · Gnu
through 8.29 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-18018
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-18018
Exploit
http://lists.gnu.org/archive/html/coreutils/2017-12/msg00045.html
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