On Tue, Jul 02, 2019 at 03:30:30PM +0000, Sugar, David wrote:
> Messages like this are added to the audit log when an rpm is installed:
> type=SOFTWARE_UPDATE msg=audit(1560913896.581:244): pid=1265 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:rpm_t:s0 msg='sw="ntpdate-4.2.6p5-25.el7_3.2.x86_64" sw_type=rpm key_enforce=0 gpg_res=0 root_dir="/" comm="rpm" exe="/usr/bin/rpm" hostname=? addr=? terminal=? res=success'
>
> These are the denials that I'm seeing:
> type=AVC msg=audit(1560913896.581:243): avc: denied { audit_write } for pid=1265 comm="rpm" capability=29 scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=capability permissive=1
>
> type=AVC msg=audit(1561298132.446:240): avc: denied { create } for pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
> type=AVC msg=audit(1561298132.446:241): avc: denied { write } for pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
> type=AVC msg=audit(1561298132.446:241): avc: denied { nlmsg_relay } for pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
> type=AVC msg=audit(1561298132.447:243): avc: denied { read } for pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
There is an interface for that: logging_send_audit_msgs(rpm_t)
>
> Signed-off-by: Dave Sugar <dsugar@xxxxxxxxxx>
> ---
> policy/modules/admin/rpm.te | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/policy/modules/admin/rpm.te b/policy/modules/admin/rpm.te
> index 0e6e9c03..a28a24d3 100644
> --- a/policy/modules/admin/rpm.te
> +++ b/policy/modules/admin/rpm.te
> @@ -73,7 +73,7 @@ files_tmpfs_file(rpm_script_tmpfs_t)
> # rpm Local policy
> #
>
> -allow rpm_t self:capability { chown dac_override fowner fsetid ipc_lock mknod setfcap setgid setuid sys_chroot sys_nice sys_tty_config };
> +allow rpm_t self:capability { audit_write chown dac_override fowner fsetid ipc_lock mknod setfcap setgid setuid sys_chroot sys_nice sys_tty_config };
> allow rpm_t self:process { transition signal_perms getsched setsched getsession getpgid setpgid getcap setcap share getattr setexec setfscreate noatsecure siginh setrlimit rlimitinh dyntransition execmem setkeycreate setsockcreate getrlimit };
> allow rpm_t self:fd use;
> allow rpm_t self:fifo_file rw_fifo_file_perms;
> @@ -87,6 +87,7 @@ allow rpm_t self:msgq create_msgq_perms;
> allow rpm_t self:msg { send receive };
> allow rpm_t self:file rw_file_perms;
> allow rpm_t self:netlink_kobject_uevent_socket create_socket_perms;
> +allow rpm_t self:netlink_audit_socket { nlmsg_relay create_socket_perms };
>
> allow rpm_t rpm_log_t:file { append_file_perms create_file_perms setattr_file_perms };
> logging_log_filetrans(rpm_t, rpm_log_t, file)
> --
> 2.21.0
>
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