Summary: SELinux is preventing /bin/bash "execute" access on /sbin/iptables-multi. Detailed Description: SELinux denied access requested by dhclient-script. It is not expected that this access is required by dhclient-script and this access may signal an intrusion attempt. It is also possible that the specific version or configuration of the application is causing it to require additional access. Allowing Access: You can generate a local policy module to allow this access - see FAQ (http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Please file a bug report. Additional Information: Source Context unconfined_u:system_r:dhcpc_t:s0-s0:c0.c1023 Target Context system_u:object_r:iptables_exec_t:s0 Target Objects /sbin/iptables-multi [ file ] Source dhclient-script Source Path /bin/bash Port <Unknown> Host (removed) Source RPM Packages bash-4.0.35-2.fc12 Target RPM Packages iptables-1.4.5-1.fc12 Policy RPM selinux-policy-3.6.32-69.fc12 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name catchall Host Name (removed) Platform Linux (removed) 2.6.31.12-174.2.3.fc12.i686.PAE #1 SMP Mon Jan 18 20:06:44 UTC 2010 i686 i686 Alert Count 17 First Seen Tue 19 Jan 2010 09:58:31 PM HKT Last Seen Sun 24 Jan 2010 01:01:18 PM HKT Local ID 35c448a9-5b6d-4398-bb5c-965aec0a2acf Line Numbers Raw Audit Messages node=(removed) type=AVC msg=audit(1264309278.278:20623): avc: denied { execute } for pid=1749 comm="dhclient-script" name="iptables-multi" dev=dm-0 ino=29843 scontext=unconfined_u:system_r:dhcpc_t:s0-s0:c0.c1023 tcontext=system_u:object_r:iptables_exec_t:s0 tclass=file node=(removed) type=SYSCALL msg=audit(1264309278.278:20623): arch=40000003 syscall=11 success=no exit=-13 a0=88f4ed8 a1=88cc050 a2=89040f8 a3=88cc050 items=0 ppid=1733 pid=1749 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts0 ses=1 comm="dhclient-script" exe="/bin/bash" subj=unconfined_u:system_r:dhcpc_t:s0-s0:c0.c1023 key=(null) Hash String generated from selinux-policy-3.6.32-69.fc12,catchall,dhclient-script,dhcpc_t,iptables_exec_t,file,execute audit2allow suggests: #============= dhcpc_t ============== allow dhcpc_t iptables_exec_t:file execute;
Do you have dhcpc_t changing iptables on your machine?
*** Bug 559220 has been marked as a duplicate of this bug. ***
*** Bug 560328 has been marked as a duplicate of this bug. ***
*** Bug 562337 has been marked as a duplicate of this bug. ***
*** Bug 565434 has been marked as a duplicate of this bug. ***
Referring to bug 562338 generate in same occasion:- ... ... paul 2010-02-10 07:48:14 EST I should have written a script /etc/dhcp/dhclient-eth1-up-hooks which should run whenever dhclient update the ip. This in turn run a script that contain iptables command to setup my firewall, extracts:- $IPTABLES -A INPUT -p udp -d $EXTIP --dport 4500 -j ACCEPT $IPTABLES -A INPUT -p 50 -d $EXTIP -j ACCEPT $IPTABLES -A INPUT -p 51 -d $EXTIP -j ACCEPT ... ... Daniel Walsh 2010-02-10 11:14:33 EST Does everything work other then generating this AVC message? ... ... paul 2010-07-17 23:47:46 EDT No. Iptables command was denied... e.g. ... /etc/rc.firewall-iptables-stronger_P226g_f13: line 49: /sbin/iptables: Permission denied /etc/rc.firewall-iptables-stronger_P226g_f13: line 50: /sbin/iptables: Permission denied /etc/rc.firewall-iptables-stronger_P226g_f13: line 52: /sbin/iptables: Permission denied /etc/rc.firewall-iptables-stronger_P226g_f13: line 54: /sbin/iptables: Permission denied
Paul add this custom policy to allow your access. # cat > mydovecot.te << _EOF policy_module(mydhcpc,1.0) gen_require(` type dhcpc_t; ') iptables_domtrans(dhcpc_t) _EOF # make -f /usr/share/selinux/devel/Makefile # semodule -i mydhcpc.pp Miroslav, This seems to be fairly common, what do you think about adding a boolean, dhcpc_run_iptables?
> Miroslav, This seems to be fairly common Yes, it looks so. >, what do you think about adding a > boolean, dhcpc_run_iptables? Sounds good add this option for users.
Fixed in selinux-policy-3.6.32-120.fc12
selinux-policy-3.6.32-120.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-120.fc12
selinux-policy-3.6.32-120.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-3.6.32-120.fc12
selinux-policy-3.6.32-120.fc12 has been pushed to the Fedora 12 stable repository. If problems still persist, please make note of it in this bug report.
This is still a problem in Fedora 15
The problem is with a different file, dhclient-script denied getattr on systemctl and bash denied getattr on systemctl.
Please open a new bug.
Done, thanks! Matt