Gentoo Archives: gentoo-hardened

From: Thomas Eschenbacher <Thomas.Eschenbacher@×××.de>
To: gentoo-hardened@l.g.o
Subject: [gentoo-hardened] selinux newbie questions / avc denies everything
Date: Sat, 18 Mar 2006 11:51:37
Message-Id: 441BF3E6.1000205@gmx.de
1 Hi,
2
3 I followed the steps on
4 http://www.gentoo.org/proj/en/hardened/selinux/selinux-x86-handbook.xml?part=2
5
6 to convert an existing system to SELinux and also have gone through the
7 "Troubleshooting SELinux" section of the handbook but with no success.
8
9 I use the "selinux/2005.1/x86" profile, kernel "2.6.14-hardened-r5",
10 policy version 20, XFS as root filesystem, udev.
11
12 I re-emerged all packages of the whole system, relabeled the whole
13 filesystem, restorecon /dev, did a "rlpkg" of sysvinit, bash, glibc,
14 pam, openssh, coreutils and many others, but nothing helps.
15
16 According to the troubleshooting section in the handbook everything
17 looks fine, all the suggested commands work without warnings or errors,
18 all security labels are set like shown, but things still do not work.
19
20 For example I can do the following:
21
22 cd /etc/security/selinux/src/policy
23 make clean
24 make install
25 make load
26 ls
27
28 and as result I get the following syslog message;
29 ==> /var/log/kern.log <==
30 Mar 18 12:36:47 server audit(1142681807.921:440): avc: denied {
31 getattr } for pid=24263 comm="ls" name="COPYING" dev=sda2 ino=234881155
32 scontext=root:staff_r:staff_t tcontext=system_u:object_r:named_zone_t
33 tclass=dir
34 [...]
35
36 And of course hundreds more, once from every command I call, even init
37 and bash are denied - so I can only boot up the machine in permissive mode.
38
39 Here what "sestatus" shows:
40 ----------------------------------
41 SELinux status: enabled
42 SELinuxfs mount: /selinux
43 Current mode: permissive
44 Policy version: 20
45
46 Policy booleans:
47 secure_mode inactive
48 ssh_sysadm_login inactive
49 user_ping inactive
50 ----------------------------------
51
52 Any ideas what goes wrong ?
53 Did I miss something ?
54
55 thanks,
56 Thomas
57
58 --
59 gentoo-hardened@g.o mailing list

Replies

Subject Author
Re: [gentoo-hardened] selinux newbie questions / avc denies everything Chris PeBenito <pebenito@g.o>