Bug 573884
| Summary: | SELinux is preventing /usr/sbin/snmpd from binding to port 161. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Brian Whitehead <bwhitehd> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 12 | CC: | dwalsh, mgrepl |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | setroubleshoot_trace_hash:ac1429c970f9f0c1b5e78427e0d62d809f8f4ccbfb850eaa7b071ae9aac7afe9 | ||
| Fixed In Version: | selinux-policy-3.6.32-106.fc12 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-03-30 02:11:07 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: | |||
Is this your local customization? I mean using using of 161/tcp port. I don't recall making any custom changes, but will have to check. It didn't dawn on me that this was showing TCP rather than UDP. I will look in to why this has happened. Fixed in selinux-policy-3.6.32-104.fc12 selinux-policy-3.6.32-106.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-106.fc12 selinux-policy-3.6.32-106.fc12 has been pushed to the Fedora 12 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update selinux-policy'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-106.fc12 selinux-policy-3.6.32-106.fc12 has been pushed to the Fedora 12 stable repository. If problems still persist, please make note of it in this bug report. |
Summary: SELinux is preventing /usr/sbin/snmpd from binding to port 161. Detailed Description: SELinux has denied the snmpd from binding to a network port 161 which does not have an SELinux type associated with it. If snmpd should be allowed to listen on 161, use the semanage command to assign 161 to a port type that snmpd_t can bind to (snmp_port_t, agentx_port_t). If snmpd is not supposed to bind to 161, this could signal an intrusion attempt. Allowing Access: If you want to allow snmpd to bind to port 161, you can execute # semanage port -a -t PORT_TYPE -p tcp 161 where PORT_TYPE is one of the following: snmp_port_t, agentx_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 system_u:system_r:snmpd_t:s0 Target Context system_u:object_r:reserved_port_t:s0 Target Objects None [ tcp_socket ] Source snmpd Source Path /usr/sbin/snmpd Port 161 Host (removed) Source RPM Packages net-snmp-5.4.2.1-19.fc12 Target RPM Packages Policy RPM selinux-policy-3.6.32-92.fc12 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name bind_ports Host Name (removed) Platform Linux (removed) 2.6.32.9-67.fc12.i686 #1 SMP Sat Feb 27 10:00:02 UTC 2010 i686 i686 Alert Count 6 First Seen Tue 02 Mar 2010 08:13:35 PM CST Last Seen Sat 13 Mar 2010 07:26:44 AM CST Local ID 5b13bb7e-ba18-4142-80dc-9434deec1dc4 Line Numbers Raw Audit Messages node=(removed) type=AVC msg=audit(1268486804.388:8): avc: denied { name_bind } for pid=1409 comm="snmpd" src=161 scontext=system_u:system_r:snmpd_t:s0 tcontext=system_u:object_r:reserved_port_t:s0 tclass=tcp_socket node=(removed) type=SYSCALL msg=audit(1268486804.388:8): arch=40000003 syscall=102 success=no exit=-13 a0=2 a1=bfa1a9b0 a2=97831c a3=978dac items=0 ppid=1 pid=1409 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="snmpd" exe="/usr/sbin/snmpd" subj=system_u:system_r:snmpd_t:s0 key=(null) Hash String generated from bind_ports,snmpd,snmpd_t,reserved_port_t,tcp_socket,name_bind audit2allow suggests: #============= snmpd_t ============== allow snmpd_t reserved_port_t:tcp_socket name_bind;