Description
setup before version 2.11.4-1.fc28 in Fedora and Red Hat Enterprise Linux added /sbin/nologin and /usr/sbin/nologin to /etc/shells. This violates security assumptions made by pam_shells and some daemons which allow access based on a user's shell being listed in /etc/shells. Under some circumstances, users which had their shell changed to /sbin/nologin could still access the system.
References (3)
Core 3
Core References
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3249
Issue Tracking, Vendor Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1113
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHBA-2019:0327
Scores
CVSS v3
4.8
EPSS
0.0004
EPSS Percentile
13.4%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
Details
CWE
CWE-285
CWE-732
Status
published
Products (4)
redhat/enterprise_linux_desktop
7.0
redhat/enterprise_linux_server
7.0
redhat/enterprise_linux_workstation
7.0
redhat/setup
< 2.11.4
Published
Jul 03, 2018
Tracked Since
Feb 18, 2026