Red Hat Bugzilla – Bug 474527
SELinux is preventing the npviewer.bin (nsplugin_t) from connecting to port xxxx
Last modified: 2009-11-18 08:00:16 EST
Description of problem: SELinux prevents flex application in a firefox browser to connect to a TCP port in the network Version-Release number of selected component (if applicable): nspluginwrapper-1.1.2-4.fc10 selinux-policy-3.5.13-18.fc10 How reproducible: When the flex application is downloaded into the Firefox browser and when the flex application is trying to connect to the port xx on a network server. Steps to Reproduce: 1. Download swf application with firefox 2. Application tries to connect to port xx 3. SELinux prevents the npviewer.bin to allow this connection Actual results: Expected results: Additional info: Trying to allow access using: semanage port -a -t PORT_TYPE -p PROTOCOL xx Seems not to help. Also: setsebool -P allow_unconfined_nsplugin_transition 0 Seems not to help either... - - - - - - - - - SELinux Additional Information: Target Context: system_u:object_r:port_t:s0 Target Objects: None [ tcp_socket ] Source: npviewer.bin Source Path: /usr/lib/nspluginwrapper/npviewer.binPort: xx Host: Source RPM Packages: nspluginwrapper-1.1.2-4.fc10 Target RPM Packages: Policy RPM: selinux-policy-3.5.13-18.fc10 Selinux Enabled: True Policy Type: targeted MLS Enabled: True Enforcing Mode: Enforcing Plugin Name: connect_ports Raw Audit Messages :node=xxxx type=AVC msg=audit(1228239276.420:44): avc: denied { name_connect } for pid=3611 comm="npviewer.bin" dest=xxxx scontext=unconfined_u:unconfined_r:nsplugin_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=tcp_socket node=xxxx type=SYSCALL msg=audit(1228239276.420:44): arch=40000003 syscall=102 success=no exit=-13 a0=3 a1=43b82c0 a2=18a5924 a3=0 items=0 ppid=3592 pid=3611 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="npviewer.bin" exe="/usr/lib/nspluginwrapper/npviewer.bin" subj=unconfined_u:unconfined_r:nsplugin_t:s0 key=(null)
Turn off the plugin transition # setsebool -P allow_unconfined_nsplugin_transition 0 Then restart firefox, it should work then. I am changing the default since this is happening to too many people. Fixed in selinux-policy-3.5.13-31.fc10
Similar SELinux error report involving npviewer.bin: Source Context: unconfined_u:unconfined_r:nsplugin_t:s0 Target Context: system_u:object_r:mmcc_port_t:s0 Target Objects: None [ tcp_socket ] Source: npviewer.binSource Path: /usr/lib64/nspluginwrapper/npviewer.bin Port: 5050 Host: <hostname> Source RPM Packages: nspluginwrapper-1.1.2-4.fc10 Target RPM Packages: Policy RPM: selinux-policy-3.5.13-26.fc10 Selinux Enabled: True Policy Type: targeted MLS Enabled: True Enforcing Mode: Enforcing Plugin Name: catchall Host Name: Platform: Linux <hostname> 2.6.27.7-134.fc10.x86_64 #1 SMP Mon Dec 1 22:21:35 EST 2008 x86_64 x86_64 Alert Count: 56 First Seen: Sat 06 Dec 2008 02:54:03 PM EST Last Seen: Wed 10 Dec 2008 12:16:12 PM EST Local ID: 9d407ca6-3283-465f-ae00-20941c8510fb Line Numbers: Raw Audit Messages : node=<hostname> type=AVC msg=audit(1228929372.600:66): avc: denied { name_connect } for pid=8103 comm="npviewer.bin" dest=5050 scontext=unconfined_u:unconfined_r:nsplugin_t:s0 tcontext=system_u:object_r:mmcc_port_t:s0 tclass=tcp_socket node=<hostname> type=SYSCALL msg=audit(1228929372.600:66): arch=c000003e syscall=42 success=no exit=-13 a0=d a1=e54dc0 a2=10 a3=3 items=0 ppid=8070 pid=8103 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=2 comm="npviewer.bin" exe="/usr/lib64/nspluginwrapper/npviewer.bin" subj=unconfined_u:unconfined_r:nsplugin_t:s0 key=(null)
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Closing as current release