Bug 1302666 - SELinux is preventing sstpc from create access on the sock_file sstpc-nm-sstp-service-8849.
SELinux is preventing sstpc from create access on the sock_file sstpc-nm-sstp...
Product: Fedora
Classification: Fedora
Component: selinux-policy (Show other bugs)
Unspecified Unspecified
medium Severity medium
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Assigned To: Lukas Vrabec
Fedora Extras Quality Assurance
Depends On:
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Reported: 2016-01-28 06:00 EST by Grégoire
Modified: 2016-12-20 13:15 EST (History)
6 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2016-12-20 13:15:56 EST
Type: Bug
Regression: ---
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RHEL 7.3 requirements from Atomic Host:
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Description Grégoire 2016-01-28 06:00:33 EST
This prevents sstp VPN from starting. Note that it worked before so it might be due to a recent update...?

SELinux is preventing sstpc from create access on the sock_file sstpc-nm-sstp-service-8849.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that sstpc should be allowed create access on the sstpc-nm-sstp-service-8849 sock_file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
allow this access for now by executing:
# grep sstpc /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:pppd_t:s0
Target Context                system_u:object_r:var_run_t:s0
Target Objects                sstpc-nm-sstp-service-8849 [ sock_file ]
Source                        sstpc
Source Path                   sstpc
Port                          <Unknown>
Host                          freez-b
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-158.2.fc23.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     freez-b
Platform                      Linux freez-b 4.3.3-301.fc23.x86_64 #1 SMP Fri Jan
                              15 14:03:17 UTC 2016 x86_64 x86_64
Alert Count                   3
First Seen                    2016-01-28 11:55:02 CET
Last Seen                     2016-01-28 11:55:13 CET
Local ID                      adce6d2c-3328-42c0-bdd3-c0b345d0dfe4

Raw Audit Messages
type=AVC msg=audit(1453978513.868:2554): avc:  denied  { create } for  pid=8955 comm="sstpc" name="sstpc-nm-sstp-service-8849" scontext=system_u:system_r:pppd_t:s0 tcontext=system_u:object_r:var_run_t:s0 tclass=sock_file permissive=0

Hash: sstpc,pppd_t,var_run_t,sock_file,create
Comment 1 Lukas Vrabec 2016-02-08 05:21:30 EST
where is "sstpc-nm-sstp-service-8849" sock_file stored? Thank you.
Comment 2 Grégoire 2016-02-08 05:36:56 EST
Hello. It is located in /run/sstpc. Note that the number at the end changes each time I restart the VPN.

I took a more detailed look at the audit.log and it seems that, in addition to the create permission, sstpc needs setattr and unlink permissions and pppd needs write permission on the same file.

I didn't remember this when reporting the bug but I'm using the NetworkManager plugin for sstp which is not in the fedora repository (installed from a copr repo).  So maybe I should have reported this to the author of the package instead?
Comment 3 Lukas Vrabec 2016-02-08 06:32:53 EST
Could you attach audit.log file or all AVCs in this file?

Thank you.
Comment 4 Fedora End Of Life 2016-11-24 10:14:46 EST
This message is a reminder that Fedora 23 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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Comment 5 Fedora End Of Life 2016-12-20 13:15:56 EST
Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is
no longer maintained, which means that it will not receive any further
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