nnd/selinux-refpolicy
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tcpdump chroots into /var/lib/tcpdump

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When invoking tcpdump, the application creates a netlink_socket and then chroots
into /var/lib/tcpdump.

Without the right to create a netlink_socket:
tcpdump: Can't open netlink socket 13:Permission denied

Without the right on dac_read_search and sys_chroot:
tcpdump: Couldn't chroot/chdir to '/var/lib/tcpdump': Permission denied

See also https://bugs.gentoo.org/show_bug.cgi?id=443624

Signed-off-by: Sven Vermeulen <sven.vermeulen@siphos.be>
This commit is contained in:
Sven Vermeulen 2012-11-18 08:41:07 +01:00 committed by Chris PeBenito
parent f11752ff60
commit 9241902062
1 changed files with 4 additions and 2 deletions
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6
policy/modules/admin/netutils.te
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@ -33,10 +33,11 @@ init_system_domain(traceroute_t, traceroute_exec_t)
#
# Perform network administration operations and have raw access to the network.
allow netutils_t self:capability { net_admin net_raw setuid setgid };
dontaudit netutils_t self:capability sys_tty_config;
allow netutils_t self:capability { dac_read_search net_admin net_raw setuid setgid sys_chroot };
dontaudit netutils_t self:capability { dac_override sys_tty_config };
allow netutils_t self:process { setcap signal_perms };
allow netutils_t self:netlink_route_socket create_netlink_socket_perms;
allow netutils_t self:netlink_socket create_socket_perms;
allow netutils_t self:packet_socket create_socket_perms;
allow netutils_t self:udp_socket create_socket_perms;
allow netutils_t self:tcp_socket create_stream_socket_perms;
@ -47,6 +48,7 @@ manage_files_pattern(netutils_t, netutils_tmp_t, netutils_tmp_t)
files_tmp_filetrans(netutils_t, netutils_tmp_t, { file dir })
kernel_search_proc(netutils_t)
kernel_read_network_state(netutils_t)
kernel_read_all_sysctls(netutils_t)
corenet_all_recvfrom_unlabeled(netutils_t)