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Bug 1872304 - allow chronyc_t self:tcp_socket create;
Summary: allow chronyc_t self:tcp_socket create;
Keywords:
Status: CLOSED DUPLICATE of bug 1772852
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: 8.3
Hardware: Unspecified
OS: Linux
low
medium
Target Milestone: rc
: 8.0
Assignee: Zdenek Pytela
QA Contact: Milos Malik
URL:
Whiteboard:
Depends On: 1805931
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-08-25 13:07 UTC by Miroslav Hradílek
Modified: 2020-09-10 09:34 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1805931
Environment:
Last Closed: 2020-09-10 09:34:14 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Comment 1 Milos Malik 2020-09-10 08:06:51 UTC 
The bug is fixed on RHEL-8.3:

# sesearch -s chronyc_t -t chronyc_t -c tcp_socket -p create -A
allow chronyc_t chronyc_t:tcp_socket { accept append bind connect create getattr getopt ioctl listen lock read setattr setopt shutdown write }; [ nis_enabled ]:True
allow chronyc_t chronyc_t:tcp_socket { append bind connect create getattr getopt ioctl lock read setattr setopt shutdown write };
allow chronyc_t chronyc_t:tcp_socket { append bind connect create getattr getopt ioctl lock read setattr setopt shutdown write }; [ authlogin_nsswitch_use_ldap ]:True
allow chronyc_t chronyc_t:tcp_socket { append bind connect create getattr getopt ioctl lock read setattr setopt shutdown write }; [ kerberos_enabled ]:True
#

The execution of /CoreOS/chrony/Upgrade/basic does not trigger any SELinux denials on RHEL-8.3, even if all 3 above-mentioned booleans are disabled.
Comment 2 Zdenek Pytela 2020-09-10 09:34:14 UTC 
Milosi,

You are right, I haven't noticed it since the change upstream got into rawhide only and is a bit hidden here:

commit cafd50640ad014d92e9efdc9aef3dbde638f1816
Author: Zdenek Pytela <zpytela>
Date:   Mon May 18 17:36:08 2020 +0200

    Allow chronyc_t domain to use nsswitch

diff --git a/chronyd.te b/chronyd.te
index 258a9750d..47e3692d9 100644
--- a/chronyd.te
+++ b/chronyd.te
@@ -207,6 +207,8 @@ files_tmp_filetrans(chronyc_t, chronyd_tmp_t, file)
 kernel_read_system_state(chronyc_t)
 kernel_read_network_state(chronyc_t)
 
+auth_use_nsswitch(chronyc_t)
+
 corecmd_exec_bin(chronyc_t)
 
 files_rw_inherited_non_security_files(chronyc_t)

because of
sysnet_dns_name_resolve(nsswitch_domain)
in authlogin.te

*** This bug has been marked as a duplicate of bug 1772852 ***
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