Bug 428039
| Summary: | postgrey policy is not working | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Nils Philippsen <nphilipp> |
| Component: | selinux-policy-targeted | Assignee: | Daniel Walsh <dwalsh> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Ben Levenson <benl> |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | 8 | CC: | fedora |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2008-11-17 22:02:48 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
You can allow this for now by executing # audit2allow -M mypol -i /var/log/audit/audit.log # semodule -i mypol.pp Fixed in selinux-policy-3.0.8-75.fc8 Looks like it's not quite fixed with selinux-policy-targeted-3.0.8-76.fc8 from
updates-testing:
Jan 18 10:52:40 wombat setroubleshoot: #012 SELinux is preventing postgrey (p
ostgrey_t) "ioctl" to /etc/postfix/postgrey_whitelist_clients (postfix_etc_t).#0
12 For complete SELinux messages. run sealert -l 2b0ee89e-5d32-4aac-9355-486
c7afdd53c
Jan 18 10:52:40 wombat setroubleshoot: #012 SELinux is preventing postgrey
(postgrey_t) "ioctl" to /etc/postfix/postgrey_whitelist_clients.local
(postfix_etc_t).#012 For complete SELinux messages. run sealert -l
6cb980d0-12d0-4e8c-b27a-cd911f9a24d5
Jan 18 10:52:40 wombat setroubleshoot: #012 SELinux is preventing postgrey
(postgrey_t) "ioctl" to /etc/postfix/postgrey_whitelist_recipients
(postfix_etc_t).#012 For complete SELinux messages. run sealert -l
0a57fd40-9b61-43d4-bb82-e1dae06add26
Jan 18 10:52:40 wombat setroubleshoot: #012 SELinux is preventing postgrey
(postgrey_t) "write" to <Unknown> (postfix_spool_t).#012 For complete
SELinux messages. run sealert -l 6a34e53e-75bb-4cee-83b2-253532818011
raw audit messages:
avc: denied { ioctl } for comm=postgrey dev=dm-0 egid=0 euid=0 exe=/usr/bin/perl
exit=-13 fsgid=0 fsuid=0 gid=0 items=0
path=/etc/postfix/postgrey_whitelist_clients pid=31854
scontext=unconfined_u:system_r:postgrey_t:s0 sgid=0
subj=unconfined_u:system_r:postgrey_t:s0 suid=0 tclass=file
tcontext=system_u:object_r:postfix_etc_t:s0 tty=pts5 uid=0
avc: denied { ioctl } for comm=postgrey dev=dm-0
path=/etc/postfix/postgrey_whitelist_clients.local pid=31854
scontext=unconfined_u:system_r:postgrey_t:s0 tclass=file
tcontext=system_u:object_r:postfix_etc_t:s0
avc: denied { ioctl } for comm=postgrey dev=dm-0
path=/etc/postfix/postgrey_whitelist_recipients pid=31854
scontext=unconfined_u:system_r:postgrey_t:s0 tclass=file
tcontext=system_u:object_r:postfix_etc_t:s0
avc: denied { write } for comm=postgrey dev=dm-3 name=postgrey pid=31855
scontext=unconfined_u:system_r:postgrey_t:s0 tclass=dir
tcontext=system_u:object_r:postfix_spool_t:s0
Is postgrey trying to write to /etc/postfix/postgrey_whitelist_recipients and /var/spool/postfix? Quick workaround to get postgrey up and running in F8.
Summary:
Do not use unix socket for postgrey, use inet ports instead.
Procedure:
1. In the file /etc/init.d/postgrey: comment out the original OPTIONS line
continaing --unix=$SOCKET, and add --inet=127.0.0.1:60000:
#OPTIONS="--unix=$SOCKET"
OPTIONS="--inet=127.0.0.1:60000"
2. Open port 60000 in the firewall. Please be careful if your machine is
exposed to the net.
3. In the file /etc/postfix/main.cf: add ''check_policy_service
inet:127.0.0.1:60000'' to ''smtpd_recipient_restrictions''
smtpd_recipient_restrictions = permit_mynetworks,check_policy_service
inet:127.0.0.1:60000,[<other flags...>]
4. Restart postgrey and postfix.
Comments:
SELinux prevents the use of sockets for postgrey. It would be preferable to use
sockets on a local machine. For am inet solution, it would be preferable to use
a TLS connection.
/Jarl
Jarl, please open a separate bugzilla along with the AVC messages you are seeing. Closing all bugs that have been in modified for over a month. Please reopen if the bug is not actually fixed. |
Description of problem: Postgrey is denied access to its own whitelist files because they are labeled as postfix_etc_t. Postgrey is denied something else which I can't really decipher (see audit message below) Version-Release number of selected component (if applicable): postfix-2.4.5-2.fc8 postgrey-1.30-1.fc8 selinux-policy-targeted-3.0.8-72.fc8 How reproducible: install postfix+postgrey, configure postfix to use postgrey-service Steps to Reproduce: 1. install postfix, postgrey 2. configure postfix to actually use postgrey Actual results: postgrey is be unable to access its whitelist files: /etc/postfix/postgrey_whitelist_clients /etc/postfix/postgrey_whitelist_clients.local /etc/postfix/postgrey_whitelist_recipients avc: denied { search } for comm=postgrey dev=dm-0 name=postfix pid=6430 scontext=unconfined_u:system_r:postgrey_t:s0 tclass=dir tcontext=system_u:object_r:postfix_etc_t:s0 Other audit message I can't decipher: avc: denied { dac_override } for comm=postgrey egid=0 euid=0 exe=/usr/bin/perl exit=-13 fsgid=0 fsuid=0 gid=0 items=0 pid=6431 scontext=unconfined_u:system_r:postgrey_t:s0 sgid=0 subj=unconfined_u:system_r:postgrey_t:s0 suid=0 tclass=capability tcontext=unconfined_u:system_r:postgrey_t:s0 tty=(none) uid=0 Expected results: no error/warning Additional info: