Bug 658706 - SELinux is preventing /usr/sbin/lighttpd from binding to port 9091.
Summary: SELinux is preventing /usr/sbin/lighttpd from binding to port 9091.
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 14
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Miroslav Grepl
QA Contact: Fedora Extras Quality Assurance
Whiteboard: setroubleshoot_trace_hash:3672a800d41...
Depends On:
TreeView+ depends on / blocked
Reported: 2010-12-01 03:13 UTC by Capone
Modified: 2010-12-01 09:19 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-12-01 09:19:29 UTC
Type: ---

Attachments (Terms of Use)

Description Capone 2010-12-01 03:13:37 UTC

SELinux is preventing /usr/sbin/lighttpd from binding to port 9091.

Detailed Description:

SELinux has denied the lighttpd from binding to a network port 9091 which does
not have an SELinux type associated with it. If lighttpd should be allowed to
listen on 9091, use the semanage command to assign 9091 to a port type that
httpd_t can bind to (ntop_port_t, http_cache_port_t, http_port_t).
If lighttpd is not supposed to bind to 9091, this could signal an intrusion

Allowing Access:

If you want to allow lighttpd to bind to port 9091, you can execute
# semanage port -a -t PORT_TYPE -p tcp 9091
where PORT_TYPE is one of the following: ntop_port_t, http_cache_port_t,
If this system is running as an NIS Client, turning on the allow_ypbind boolean
may fix the problem. setsebool -P allow_ypbind=1.

Additional Information:

Source Context                unconfined_u:system_r:httpd_t:s0
Target Context                system_u:object_r:port_t:s0
Target Objects                None [ tcp_socket ]
Source                        lighttpd
Source Path                   /usr/sbin/lighttpd
Port                          9091
Host                          (removed)
Source RPM Packages           lighttpd-1.4.26-2.fc14
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.7-7.fc14
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   bind_ports
Host Name                     (removed)
Platform                      Linux (removed) #1
                              SMP Fri Oct 22 15:34:36 UTC 2010 i686 i686
Alert Count                   1
First Seen                    Sun 07 Nov 2010 11:27:53 PM EST
Last Seen                     Sun 07 Nov 2010 11:27:53 PM EST
Local ID                      96c71c45-6656-45f6-9769-d07a112920d8
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1289190473.404:20326): avc:  denied  { name_bind } for  pid=2577 comm="lighttpd" src=9091 scontext=unconfined_u:system_r:httpd_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=tcp_socket

node=(removed) type=SYSCALL msg=audit(1289190473.404:20326): arch=40000003 syscall=102 success=no exit=-13 a0=2 a1=bfa444c0 a2=92b18f0 a3=0 items=0 ppid=2576 pid=2577 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=1 comm="lighttpd" exe="/usr/sbin/lighttpd" subj=unconfined_u:system_r:httpd_t:s0 key=(null)

Hash String generated from  bind_ports,lighttpd,httpd_t,port_t,tcp_socket,name_bind
audit2allow suggests:

#============= httpd_t ==============
#!!!! This avc can be allowed using the boolean 'allow_ypbind'

allow httpd_t port_t:tcp_socket name_bind;

Comment 1 Miroslav Grepl 2010-12-01 09:19:29 UTC
Why is lighttpd trying to listen to port 9091?

The troubleshoot message tells you what to do. For example:

semanage port -a -t  http_port_t -p tcp 9091

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