Bug 136167 - selinux stops httpd from following symbolic links?
Summary: selinux stops httpd from following symbolic links?
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy-targeted   
(Show other bugs)
Version: rawhide
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Daniel Walsh
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2004-10-18 14:44 UTC by Thomas J. Baker
Modified: 2007-11-30 22:10 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2004-10-18 20:35:52 UTC
Type: ---
Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description Thomas J. Baker 2004-10-18 14:44:23 UTC
Description of problem:
I'm having a problem getting selinux to allow httpd to follow a
symlink. The errors are like this:

audit(1098110552.900:0): avc:  denied  { getattr } for  pid=7102
exe=/usr/sbin/httpd path=/mirror/ftp/yum/fedora dev=hdb1 ino=25165826
scontext=root:system_r:httpd_t tcontext=root:object_r:default_t
tclass=lnk_file

The context of the file it's trying to access should be correct:
[root@wintermute web]# ls -lZ /mirror/ftp/yum/fedora
drwxr-xr-x  tjb      users    system_u:object_r:httpd_user_content_t 1
drwxr-xr-x  tjb      users    system_u:object_r:httpd_user_content_t 2
drwxr-xr-x  tjb      users    system_u:object_r:httpd_user_content_t
developmentdrwxr-xr-x  tjb      users   
system_u:object_r:httpd_user_content_t test
drwxr-xr-x  tjb      users    system_u:object_r:httpd_user_content_t
updates
[root@wintermute web]# ls -lZ /mirror/ftp/fedora
drwxr-xr-x  tjb      users    system_u:object_r:httpd_user_content_t 1
drwxr-xr-x  tjb      users    system_u:object_r:httpd_user_content_t 2
drwxr-xr-x  tjb      users    system_u:object_r:httpd_user_content_t
developmentdrwxr-xr-x  tjb      users   
system_u:object_r:httpd_user_content_t test
drwxr-xr-x  tjb      users    system_u:object_r:httpd_user_content_t
updates
[root@wintermute web]# ls -l /mirror/ftp/yum/fedora
lrwxrwxrwx  1 root root 9 Oct 15 09:58 /mirror/ftp/yum/fedora -> ../fedora
[root@wintermute web]#


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

[root@wintermute web]# rpm -qa | grep  selinux
selinux-policy-targeted-sources-1.17.31-1
libselinux-devel-1.17.14-1
selinux-policy-targeted-1.17.31-1
libselinux-1.17.14-1
[root@wintermute web]#


How reproducible:
Happens with any link.

Steps to Reproduce:
1. have symbolic links in a directory structure served by httpd
2. enable selinux
3.
  
Actual results:


Expected results:


Additional info:

Comment 1 Daniel Walsh 2004-10-18 20:35:52 UTC
The problem here is that the link is labeled default_t.
To see the context do 
ls -ldZ /mirror/ftp/yum/fedora


Fix this by doing the following:

 chcon -h -t httpd_sys_content_t /mirror/ftp/yum/fedora


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