Bug 1003236
| Summary: | SELinux is preventing /usr/bin/polipo from 'name_connect' accesses on the tcp_socket . | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | vikram goyal <vikigoyal> |
| Component: | selinux-policy | Assignee: | Lukas Vrabec <lvrabec> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 18 | CC: | dominick.grift, dwalsh, lvrabec, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i686 | ||
| OS: | Unspecified | ||
| Whiteboard: | abrt_hash:e1a3b68a511ca213f34827b7cb1fb4c631dd0e8aa60bda4392d6a1feb547fdc2 | ||
| Fixed In Version: | selinux-policy-3.11.1-103.fc18 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-09-23 00:43:05 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: | |||
Hi Vikram, You could turn on Boolean, while we close this bug. setsebool -P polipo_connect_all_unreserved 1 Hello,
I did that but there also was a suggestion to create a local policy, which I did & loaded it judiciously:) The local policy thus generated is as under. Posting it below for your reference.
Also, I was wondering if, isn't it better that polipo should be restricted to DNS port only rather than all ports below 1023. Just an inquisitiveness, I'm not an expert though. Thanks.
[root@vikram ~]# cat /etc/polipo/mypol.te
module mypol 1.0;
require {
type net_conf_t;
type chrome_sandbox_t;
type tor_socks_port_t;
type user_home_dir_t;
type ladvd_t;
type sysfs_t;
type var_lock_t;
type bin_t;
type apcupsd_t;
type sysctl_net_t;
type polipo_t;
type var_run_t;
class process { signal setcap };
class capability { net_admin setpcap };
class tcp_socket name_connect;
class file { read create open execute };
class sock_file create;
class udp_socket connect;
}
#============= apcupsd_t ==============
allow apcupsd_t var_lock_t:file read;
#============= chrome_sandbox_t ==============
allow chrome_sandbox_t user_home_dir_t:file create;
#============= ladvd_t ==============
allow ladvd_t bin_t:file execute;
allow ladvd_t net_conf_t:file open;
allow ladvd_t self:capability { net_admin setpcap };
allow ladvd_t self:process { signal setcap };
allow ladvd_t self:udp_socket connect;
allow ladvd_t sysctl_net_t:file open;
allow ladvd_t sysfs_t:file open;
allow ladvd_t var_run_t:sock_file create;
#============= polipo_t ==============
#!!!! This avc is allowed in the current policy
allow polipo_t tor_socks_port_t:tcp_socket name_connect;
Thank you Vikram for your help but we have found solution how fix this bug. :) selinux-policy-3.11.1-103.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/selinux-policy-3.11.1-103.fc18 Package selinux-policy-3.11.1-103.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.11.1-103.fc18' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-16344/selinux-policy-3.11.1-103.fc18 then log in and leave karma (feedback). selinux-policy-3.11.1-103.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report. |
Description of problem: Hi, I configured Privoxy -> Polipo -> TOR on my system. Polipo needs to resolve hostnames etc & for that it needs these permissions by default. SELinux is preventing /usr/bin/polipo from 'name_connect' accesses on the tcp_socket . ***** Plugin catchall_boolean (89.3 confidence) suggests ******************* If you want to allow polipo to connect to all ports > 1023 Then you must tell SELinux about this by enabling the 'polipo_connect_all_unreserved' boolean. You can read 'tor_selinux' man page for more details. Do setsebool -P polipo_connect_all_unreserved 1 ***** Plugin catchall (11.6 confidence) suggests *************************** If you believe that polipo should be allowed name_connect access on the tcp_socket by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # grep polipo /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:polipo_t:s0 Target Context system_u:object_r:tor_socks_port_t:s0 Target Objects [ tcp_socket ] Source polipo Source Path /usr/bin/polipo Port 9050 Host (removed) Source RPM Packages polipo-1.0.4.1-9.fc18.i686 Target RPM Packages Policy RPM selinux-policy-3.11.1-100.fc18.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Permissive Host Name (removed) Platform Linux (removed) 3.10.9-100.fc18.i686 #1 SMP Wed Aug 21 18:49:36 UTC 2013 i686 i686 Alert Count 1 First Seen 2013-09-01 13:48:44 IST Last Seen 2013-09-01 13:48:44 IST Local ID cb614b43-970f-4f15-bc4b-c789b2362564 Raw Audit Messages type=AVC msg=audit(1378023524.267:502): avc: denied { name_connect } for pid=19750 comm="polipo" dest=9050 scontext=system_u:system_r:polipo_t:s0 tcontext=system_u:object_r:tor_socks_port_t:s0 tclass=tcp_socket type=SYSCALL msg=audit(1378023524.267:502): arch=i386 syscall=socketcall success=no exit=EINPROGRESS a0=3 a1=bff28c10 a2=976aa50 a3=97697e8 items=0 ppid=1 pid=19750 auid=4294967295 uid=986 gid=984 euid=986 suid=986 fsuid=986 egid=984 sgid=984 fsgid=984 ses=4294967295 tty=(none) comm=polipo exe=/usr/bin/polipo subj=system_u:system_r:polipo_t:s0 key=(null) Hash: polipo,polipo_t,tor_socks_port_t,tcp_socket,name_connect audit2allow #============= polipo_t ============== #!!!! This avc can be allowed using the boolean 'polipo_connect_all_unreserved' allow polipo_t tor_socks_port_t:tcp_socket name_connect; audit2allow -R require { type polipo_t; } #============= polipo_t ============== corenet_tcp_connect_tor_socks_port(polipo_t) Additional info: reporter: libreport-2.1.6 hashmarkername: setroubleshoot kernel: 3.10.9-100.fc18.i686 type: libreport Potential duplicate: bug 841985