Bug 1024387 - xulrunner plugin-container trying to getattr on ecryptfs dir
xulrunner plugin-container trying to getattr on ecryptfs dir
Product: Fedora
Classification: Fedora
Component: xulrunner (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
: ---
: ---
Assigned To: Gecko Maintainer
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2013-10-29 10:49 EDT by Jeff Weiss
Modified: 2014-11-09 17:52 EST (History)
6 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2013-12-16 09:47:27 EST
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description Jeff Weiss 2013-10-29 10:49:49 EDT
Description of problem:
Some plugin is trying to access someone else's home directory.  Firefox is running as jweiss, but it's trying to getattr in /home/.ecryptfs.  I think it's the google talk plugin doing this, but I'm not sure whose job it is to avoid this kind of access.  I could definitely believe this is google's fault, but thought I'd report it here just in case.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Set up your home directory with ecryptfs
2. install google talk plugin
2. Run firefox 
3. load http://plus.google.com or gmail.com

Actual results:

Expected results:

Additional info:
SELinux is preventing /usr/lib64/xulrunner/plugin-container from getattr access on the file /home/.ecryptfs/jweiss/.Private/ECRYPTFS_FNEK_ENCRYPTED.FWbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPO-5VRk7yZ89QHJRGgeH4GU--/ECRYPTFS_FNEK_ENCRYPTED.FXbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPcu.qfiED.KTJst0Fq02Ep.3Vr7yJ01I5Mdd44yuIlVQ-/ECRYPTFS_FNEK_ENCRYPTED.FXbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPW4-NJDEp13KCjDKdqTfDAe3FoLPJzZhdBl5l4Xp.3MU-.

*****  Plugin restorecon (57.3 confidence) suggests  *************************

If you want to fix the label. 
/home/.ecryptfs/jweiss/.Private/ECRYPTFS_FNEK_ENCRYPTED.FWbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPO-5VRk7yZ89QHJRGgeH4GU--/ECRYPTFS_FNEK_ENCRYPTED.FXbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPcu.qfiED.KTJst0Fq02Ep.3Vr7yJ01I5Mdd44yuIlVQ-/ECRYPTFS_FNEK_ENCRYPTED.FXbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPW4-NJDEp13KCjDKdqTfDAe3FoLPJzZhdBl5l4Xp.3MU- default label should be ecryptfs_t.
Then you can run restorecon.
# /sbin/restorecon -v /home/.ecryptfs/jweiss/.Private/ECRYPTFS_FNEK_ENCRYPTED.FWbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPO-5VRk7yZ89QHJRGgeH4GU--/ECRYPTFS_FNEK_ENCRYPTED.FXbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPcu.qfiED.KTJst0Fq02Ep.3Vr7yJ01I5Mdd44yuIlVQ-/ECRYPTFS_FNEK_ENCRYPTED.FXbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPW4-NJDEp13KCjDKdqTfDAe3FoLPJzZhdBl5l4Xp.3MU-

*****  Plugin mozplugger (43.1 confidence) suggests  *************************

If you want to use the plugin package
Then you must turn off SELinux controls on the Firefox plugins.
# setsebool -P unconfined_mozilla_plugin_transition 0

*****  Plugin catchall (1.06 confidence) suggests  ***************************

If you believe that plugin-container should be allowed getattr access on the ECRYPTFS_FNEK_ENCRYPTED.FXbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPW4-NJDEp13KCjDKdqTfDAe3FoLPJzZhdBl5l4Xp.3MU- file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
allow this access for now by executing:
# grep plugin-containe /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c
Target Context                unconfined_u:object_r:home_root_t:s0
Target Objects                /home/.ecryptfs/jweiss/.Private/ECRYPTFS_FNEK_ENCR
                              fDAe3FoLPJzZhdBl5l4Xp.3MU- [ file ]
Source                        plugin-containe
Source Path                   /usr/lib64/xulrunner/plugin-container
Port                          <Unknown>
Host                          localhost.localdomain
Source RPM Packages           xulrunner-24.0-2.fc19.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.12.1-74.9.fc19.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     localhost.localdomain
Platform                      Linux localhost.localdomain 3.11.4-201.fc19.x86_64
                              #1 SMP Thu Oct 10 14:11:18 UTC 2013 x86_64 x86_64
Alert Count                   3360
First Seen                    2013-10-24 09:03:17 EDT
Last Seen                     2013-10-29 10:18:32 EDT
Local ID                      d581d317-d95d-49a4-ac5d-2e088281edaf

Raw Audit Messages
type=AVC msg=audit(1383056312.541:2328): avc:  denied  { getattr } for  pid=5476 comm="plugin-containe" path="/home/.ecryptfs/jweiss/.Private/ECRYPTFS_FNEK_ENCRYPTED.FWbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPO-5VRk7yZ89QHJRGgeH4GU--/ECRYPTFS_FNEK_ENCRYPTED.FXbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPcu.qfiED.KTJst0Fq02Ep.3Vr7yJ01I5Mdd44yuIlVQ-/ECRYPTFS_FNEK_ENCRYPTED.FXbFLa1W0sVYoUTxzijOD4iFMHkEqhdFkAUPW4-NJDEp13KCjDKdqTfDAe3FoLPJzZhdBl5l4Xp.3MU-" dev="dm-2" ino=821561 scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:home_root_t:s0 tclass=file

type=SYSCALL msg=audit(1383056312.541:2328): arch=x86_64 syscall=fstat success=no exit=EACCES a0=16 a1=7fff52d9b330 a2=7fff52d9b330 a3=1 items=0 ppid=2159 pid=5476 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 ses=2 tty=(none) comm=plugin-containe exe=/usr/lib64/xulrunner/plugin-container subj=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 key=(null)

Hash: plugin-containe,mozilla_plugin_t,home_root_t,file,getattr
Comment 1 Martin Stransky 2013-12-16 09:47:27 EST
Yes, the plugin-container (which runs the plugin) only runs the pluig, it's just the proxy between firefox and plugin itself. So please report at google or disable the access.

Note You need to log in before you can comment on or make changes to this bug.